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oracle.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* Oracle database driver
*
* @see http://php.net/pdo
* @since 12.1
*/
class F0FDatabaseDriverOracle extends F0FDatabaseDriverPdo
{
/**
* The name of the database driver.
*
* @var string
* @since 12.1
*/
public $name = 'oracle';
/**
* The type of the database server family supported by this driver.
*
* @var string
* @since CMS 3.5.0
*/
public $serverType = 'oracle';
/**
* The character(s) used to quote SQL statement names such as table names or field names,
* etc. The child classes should define this as necessary. If a single character string the
* same character is used for both sides of the quoted name, else the first character will be
* used for the opening quote and the second for the closing quote.
*
* @var string
* @since 12.1
*/
protected $nameQuote = '"';
/**
* Returns the current dateformat
*
* @var string
* @since 12.1
*/
protected $dateformat;
/**
* Returns the current character set
*
* @var string
* @since 12.1
*/
protected $charset;
/**
* Constructor.
*
* @param array $options List of options used to configure the connection
*
* @since 12.1
*/
public function __construct($options)
{
$options['driver'] = 'oci';
$options['charset'] = (isset($options['charset'])) ? $options['charset'] : 'AL32UTF8';
$options['dateformat'] = (isset($options['dateformat'])) ? $options['dateformat'] : 'RRRR-MM-DD HH24:MI:SS';
$this->charset = $options['charset'];
$this->dateformat = $options['dateformat'];
// Finalize initialisation
parent::__construct($options);
}
/**
* Destructor.
*
* @since 12.1
*/
public function __destruct()
{
$this->freeResult();
unset($this->connection);
}
/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 12.1
* @throws RuntimeException
*/
public function connect()
{
if ($this->connection)
{
return;
}
parent::connect();
if (isset($this->options['schema']))
{
$this->setQuery('ALTER SESSION SET CURRENT_SCHEMA = ' . $this->quoteName($this->options['schema']))->execute();
}
$this->setDateFormat($this->dateformat);
}
/**
* Disconnects the database.
*
* @return void
*
* @since 12.1
*/
public function disconnect()
{
// Close the connection.
$this->freeResult();
unset($this->connection);
}
/**
* Drops a table from the database.
*
* Note: The IF EXISTS flag is unused in the Oracle driver.
*
* @param string $tableName The name of the database table to drop.
* @param boolean $ifExists Optionally specify that the table must exist before it is dropped.
*
* @return F0FDatabaseDriverOracle Returns this object to support chaining.
*
* @since 12.1
*/
public function dropTable($tableName, $ifExists = true)
{
$this->connect();
$query = $this->getQuery(true)
->setQuery('DROP TABLE :tableName');
$query->bind(':tableName', $tableName);
$this->setQuery($query);
$this->execute();
return $this;
}
/**
* Method to get the database collation in use by sampling a text field of a table in the database.
*
* @return mixed The collation in use by the database or boolean false if not supported.
*
* @since 12.1
*/
public function getCollation()
{
return $this->charset;
}
/**
* Method to get the database connection collation, as reported by the driver. If the connector doesn't support
* reporting this value please return an empty string.
*
* @return string
*/
public function getConnectionCollation()
{
return $this->charset;
}
/**
* Get a query to run and verify the database is operational.
*
* @return string The query to check the health of the DB.
*
* @since 12.2
*/
public function getConnectedQuery()
{
return 'SELECT 1 FROM dual';
}
/**
* Returns the current date format
* This method should be useful in the case that
* somebody actually wants to use a different
* date format and needs to check what the current
* one is to see if it needs to be changed.
*
* @return string The current date format
*
* @since 12.1
*/
public function getDateFormat()
{
return $this->dateformat;
}
/**
* Shows the table CREATE statement that creates the given tables.
*
* Note: You must have the correct privileges before this method
* will return usable results!
*
* @param mixed $tables A table name or a list of table names.
*
* @return array A list of the create SQL for the tables.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableCreate($tables)
{
$this->connect();
$result = array();
$query = $this->getQuery(true)
->select('dbms_metadata.get_ddl(:type, :tableName)')
->from('dual')
->bind(':type', 'TABLE');
// Sanitize input to an array and iterate over the list.
settype($tables, 'array');
foreach ($tables as $table)
{
$query->bind(':tableName', $table);
$this->setQuery($query);
$statement = (string) $this->loadResult();
$result[$table] = $statement;
}
return $result;
}
/**
* Retrieves field information about a given table.
*
* @param string $table The name of the database table.
* @param boolean $typeOnly True to only return field types.
*
* @return array An array of fields for the database table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableColumns($table, $typeOnly = true)
{
$this->connect();
$columns = array();
$query = $this->getQuery(true);
$fieldCasing = $this->getOption(PDO::ATTR_CASE);
$this->setOption(PDO::ATTR_CASE, PDO::CASE_UPPER);
$table = strtoupper($table);
$query->select('*');
$query->from('ALL_TAB_COLUMNS');
$query->where('table_name = :tableName');
$prefixedTable = str_replace('#__', strtoupper($this->tablePrefix), $table);
$query->bind(':tableName', $prefixedTable);
$this->setQuery($query);
$fields = $this->loadObjectList();
if ($typeOnly)
{
foreach ($fields as $field)
{
$columns[$field->COLUMN_NAME] = $field->DATA_TYPE;
}
}
else
{
foreach ($fields as $field)
{
$columns[$field->COLUMN_NAME] = $field;
$columns[$field->COLUMN_NAME]->Default = null;
}
}
$this->setOption(PDO::ATTR_CASE, $fieldCasing);
return $columns;
}
/**
* Get the details list of keys for a table.
*
* @param string $table The name of the table.
*
* @return array An array of the column specification for the table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableKeys($table)
{
$this->connect();
$query = $this->getQuery(true);
$fieldCasing = $this->getOption(PDO::ATTR_CASE);
$this->setOption(PDO::ATTR_CASE, PDO::CASE_UPPER);
$table = strtoupper($table);
$query->select('*')
->from('ALL_CONSTRAINTS')
->where('table_name = :tableName')
->bind(':tableName', $table);
$this->setQuery($query);
$keys = $this->loadObjectList();
$this->setOption(PDO::ATTR_CASE, $fieldCasing);
return $keys;
}
/**
* Method to get an array of all tables in the database (schema).
*
* @param string $databaseName The database (schema) name
* @param boolean $includeDatabaseName Whether to include the schema name in the results
*
* @return array An array of all the tables in the database.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableList($databaseName = null, $includeDatabaseName = false)
{
$this->connect();
$query = $this->getQuery(true);
if ($includeDatabaseName)
{
$query->select('owner, table_name');
}
else
{
$query->select('table_name');
}
$query->from('all_tables');
if ($databaseName)
{
$query->where('owner = :database')
->bind(':database', $databaseName);
}
$query->order('table_name');
$this->setQuery($query);
if ($includeDatabaseName)
{
$tables = $this->loadAssocList();
}
else
{
$tables = $this->loadColumn();
}
return $tables;
}
/**
* Get the version of the database connector.
*
* @return string The database connector version.
*
* @since 12.1
*/
public function getVersion()
{
$this->connect();
$this->setQuery("select value from nls_database_parameters where parameter = 'NLS_RDBMS_VERSION'");
return $this->loadResult();
}
/**
* Select a database for use.
*
* @param string $database The name of the database to select for use.
*
* @return boolean True if the database was successfully selected.
*
* @since 12.1
* @throws RuntimeException
*/
public function select($database)
{
$this->connect();
return true;
}
/**
* Sets the Oracle Date Format for the session
* Default date format for Oracle is = DD-MON-RR
* The default date format for this driver is:
* 'RRRR-MM-DD HH24:MI:SS' since it is the format
* that matches the MySQL one used within most Joomla
* tables.
*
* @param string $dateFormat Oracle Date Format String
*
* @return boolean
*
* @since 12.1
*/
public function setDateFormat($dateFormat = 'DD-MON-RR')
{
$this->connect();
$this->setQuery("ALTER SESSION SET NLS_DATE_FORMAT = '$dateFormat'");
if (!$this->execute())
{
return false;
}
$this->setQuery("ALTER SESSION SET NLS_TIMESTAMP_FORMAT = '$dateFormat'");
if (!$this->execute())
{
return false;
}
$this->dateformat = $dateFormat;
return true;
}
/**
* Set the connection to use UTF-8 character encoding.
*
* Returns false automatically for the Oracle driver since
* you can only set the character set when the connection
* is created.
*
* @return boolean True on success.
*
* @since 12.1
*/
public function setUtf()
{
return false;
}
/**
* Locks a table in the database.
*
* @param string $table The name of the table to unlock.
*
* @return F0FDatabaseDriverOracle Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function lockTable($table)
{
$this->setQuery('LOCK TABLE ' . $this->quoteName($table) . ' IN EXCLUSIVE MODE')->execute();
return $this;
}
/**
* Renames a table in the database.
*
* @param string $oldTable The name of the table to be renamed
* @param string $newTable The new name for the table.
* @param string $backup Not used by Oracle.
* @param string $prefix Not used by Oracle.
*
* @return F0FDatabaseDriverOracle Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function renameTable($oldTable, $newTable, $backup = null, $prefix = null)
{
$this->setQuery('RENAME ' . $oldTable . ' TO ' . $newTable)->execute();
return $this;
}
/**
* Unlocks tables in the database.
*
* @return F0FDatabaseDriverOracle Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function unlockTables()
{
$this->setQuery('COMMIT')->execute();
return $this;
}
/**
* Test to see if the PDO ODBC connector is available.
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function isSupported()
{
return class_exists('PDO') && in_array('oci', PDO::getAvailableDrivers());
}
/**
* This function replaces a string identifier <var>$prefix</var> with the string held is the
* <var>tablePrefix</var> class variable.
*
* @param string $query The SQL statement to prepare.
* @param string $prefix The common table prefix.
*
* @return string The processed SQL statement.
*
* @since 11.1
*/
public function replacePrefix($query, $prefix = '#__')
{
$startPos = 0;
$quoteChar = "'";
$literal = '';
$query = trim($query);
$n = strlen($query);
while ($startPos < $n)
{
$ip = strpos($query, $prefix, $startPos);
if ($ip === false)
{
break;
}
$j = strpos($query, "'", $startPos);
if ($j === false)
{
$j = $n;
}
$literal .= str_replace($prefix, $this->tablePrefix, substr($query, $startPos, $j - $startPos));
$startPos = $j;
$j = $startPos + 1;
if ($j >= $n)
{
break;
}
// Quote comes first, find end of quote
while (true)
{
$k = strpos($query, $quoteChar, $j);
$escaped = false;
if ($k === false)
{
break;
}
$l = $k - 1;
while ($l >= 0 && $query{$l} == '\\')
{
$l--;
$escaped = !$escaped;
}
if ($escaped)
{
$j = $k + 1;
continue;
}
break;
}
if ($k === false)
{
// Error in the query - no end quote; ignore it
break;
}
$literal .= substr($query, $startPos, $k - $startPos + 1);
$startPos = $k + 1;
}
if ($startPos < $n)
{
$literal .= substr($query, $startPos, $n - $startPos);
}
return $literal;
}
/**
* Method to commit a transaction.
*
* @param boolean $toSavepoint If true, commit to the last savepoint.
*
* @return void
*
* @since 12.3
* @throws RuntimeException
*/
public function transactionCommit($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
parent::transactionCommit($toSavepoint);
}
else
{
$this->transactionDepth--;
}
}
/**
* Method to roll back a transaction.
*
* @param boolean $toSavepoint If true, rollback to the last savepoint.
*
* @return void
*
* @since 12.3
* @throws RuntimeException
*/
public function transactionRollback($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
parent::transactionRollback($toSavepoint);
}
else
{
$savepoint = 'SP_' . ($this->transactionDepth - 1);
$this->setQuery('ROLLBACK TO SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth--;
}
}
}
/**
* Method to initialize a transaction.
*
* @param boolean $asSavepoint If true and a transaction is already active, a savepoint will be created.
*
* @return void
*
* @since 12.3
* @throws RuntimeException
*/
public function transactionStart($asSavepoint = false)
{
$this->connect();
if (!$asSavepoint || !$this->transactionDepth)
{
return parent::transactionStart($asSavepoint);
}
$savepoint = 'SP_' . $this->transactionDepth;
$this->setQuery('SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth++;
}
}
}
PK �)#]�K� K� postgresql.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* PostgreSQL database driver
*
* @since 12.1
*/
class F0FDatabaseDriverPostgresql extends F0FDatabaseDriver
{
/**
* The database driver name
*
* @var string
* @since 12.1
*/
public $name = 'postgresql';
/**
* The type of the database server family supported by this driver.
*
* @var string
* @since CMS 3.5.0
*/
public $serverType = 'postgresql';
/**
* Quote for named objects
*
* @var string
* @since 12.1
*/
protected $nameQuote = '"';
/**
* The null/zero date string
*
* @var string
* @since 12.1
*/
protected $nullDate = '1970-01-01 00:00:00';
/**
* The minimum supported database version.
*
* @var string
* @since 12.1
*/
protected static $dbMinimum = '8.3.18';
/**
* Operator used for concatenation
*
* @var string
* @since 12.1
*/
protected $concat_operator = '||';
/**
* F0FDatabaseDriverPostgresqlQuery object returned by getQuery
*
* @var F0FDatabaseDriverPostgresqlQuery
* @since 12.1
*/
protected $queryObject = null;
/**
* Database object constructor
*
* @param array $options List of options used to configure the connection
*
* @since 12.1
*/
public function __construct( $options )
{
$options['host'] = (isset($options['host'])) ? $options['host'] : 'localhost';
$options['user'] = (isset($options['user'])) ? $options['user'] : '';
$options['password'] = (isset($options['password'])) ? $options['password'] : '';
$options['database'] = (isset($options['database'])) ? $options['database'] : '';
// Finalize initialization
parent::__construct($options);
}
/**
* Database object destructor
*
* @since 12.1
*/
public function __destruct()
{
$this->disconnect();
}
/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 12.1
* @throws RuntimeException
*/
public function connect()
{
if ($this->connection)
{
return;
}
// Make sure the postgresql extension for PHP is installed and enabled.
if (!function_exists('pg_connect'))
{
throw new RuntimeException('PHP extension pg_connect is not available.');
}
// Build the DSN for the connection.
$dsn = '';
if (!empty($this->options['host']))
{
$dsn .= "host={$this->options['host']} ";
}
$dsn .= "dbname={$this->options['database']} user={$this->options['user']} password={$this->options['password']}";
// Attempt to connect to the server.
if (!($this->connection = @pg_connect($dsn)))
{
throw new RuntimeException('Error connecting to PGSQL database.');
}
pg_set_error_verbosity($this->connection, PGSQL_ERRORS_DEFAULT);
pg_query('SET standard_conforming_strings=off');
pg_query('SET escape_string_warning=off');
}
/**
* Disconnects the database.
*
* @return void
*
* @since 12.1
*/
public function disconnect()
{
// Close the connection.
if (is_resource($this->connection))
{
foreach ($this->disconnectHandlers as $h)
{
call_user_func_array($h, array( &$this));
}
pg_close($this->connection);
}
$this->connection = null;
}
/**
* Method to escape a string for usage in an SQL statement.
*
* @param string $text The string to be escaped.
* @param boolean $extra Optional parameter to provide extra escaping.
*
* @return string The escaped string.
*
* @since 12.1
*/
public function escape($text, $extra = false)
{
$this->connect();
$result = pg_escape_string($this->connection, $text);
if ($extra)
{
$result = addcslashes($result, '%_');
}
return $result;
}
/**
* Test to see if the PostgreSQL connector is available
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function test()
{
return (function_exists('pg_connect'));
}
/**
* Determines if the connection to the server is active.
*
* @return boolean
*
* @since 12.1
*/
public function connected()
{
$this->connect();
if (is_resource($this->connection))
{
return pg_ping($this->connection);
}
return false;
}
/**
* Drops a table from the database.
*
* @param string $tableName The name of the database table to drop.
* @param boolean $ifExists Optionally specify that the table must exist before it is dropped.
*
* @return boolean
*
* @since 12.1
* @throws RuntimeException
*/
public function dropTable($tableName, $ifExists = true)
{
$this->connect();
$this->setQuery('DROP TABLE ' . ($ifExists ? 'IF EXISTS ' : '') . $this->quoteName($tableName));
$this->execute();
return true;
}
/**
* Get the number of affected rows by the last INSERT, UPDATE, REPLACE or DELETE for the previous executed SQL statement.
*
* @return integer The number of affected rows in the previous operation
*
* @since 12.1
*/
public function getAffectedRows()
{
$this->connect();
return pg_affected_rows($this->cursor);
}
/**
* Method to get the database collation in use by sampling a text field of a table in the database.
*
* @return mixed The collation in use by the database or boolean false if not supported.
*
* @since 12.1
* @throws RuntimeException
*/
public function getCollation()
{
$this->connect();
$this->setQuery('SHOW LC_COLLATE');
$array = $this->loadAssocList();
return $array[0]['lc_collate'];
}
/**
* Method to get the database connection collation, as reported by the driver. If the connector doesn't support
* reporting this value please return an empty string.
*
* @return string
*/
public function getConnectionCollation()
{
return pg_client_encoding($this->connection);
}
/**
* Get the number of returned rows for the previous executed SQL statement.
* This command is only valid for statements like SELECT or SHOW that return an actual result set.
* To retrieve the number of rows affected by a INSERT, UPDATE, REPLACE or DELETE query, use getAffectedRows().
*
* @param resource $cur An optional database cursor resource to extract the row count from.
*
* @return integer The number of returned rows.
*
* @since 12.1
*/
public function getNumRows($cur = null)
{
$this->connect();
return pg_num_rows((int) $cur ? $cur : $this->cursor);
}
/**
* Get the current or query, or new F0FDatabaseQuery object.
*
* @param boolean $new False to return the last query set, True to return a new F0FDatabaseQuery object.
* @param boolean $asObj False to return last query as string, true to get F0FDatabaseQueryPostgresql object.
*
* @return F0FDatabaseQuery The current query object or a new object extending the F0FDatabaseQuery class.
*
* @since 12.1
* @throws RuntimeException
*/
public function getQuery($new = false, $asObj = false)
{
if ($new)
{
// Make sure we have a query class for this driver.
if (!class_exists('F0FDatabaseQueryPostgresql'))
{
throw new RuntimeException('F0FDatabaseQueryPostgresql Class not found.');
}
$this->queryObject = new F0FDatabaseQueryPostgresql($this);
return $this->queryObject;
}
else
{
if ($asObj)
{
return $this->queryObject;
}
else
{
return $this->sql;
}
}
}
/**
* Shows the table CREATE statement that creates the given tables.
*
* This is unsuported by PostgreSQL.
*
* @param mixed $tables A table name or a list of table names.
*
* @return string An empty char because this function is not supported by PostgreSQL.
*
* @since 12.1
*/
public function getTableCreate($tables)
{
return '';
}
/**
* Retrieves field information about a given table.
*
* @param string $table The name of the database table.
* @param boolean $typeOnly True to only return field types.
*
* @return array An array of fields for the database table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableColumns($table, $typeOnly = true)
{
$this->connect();
$result = array();
$tableSub = $this->replacePrefix($table);
$this->setQuery('
SELECT a.attname AS "column_name",
pg_catalog.format_type(a.atttypid, a.atttypmod) as "type",
CASE WHEN a.attnotnull IS TRUE
THEN \'NO\'
ELSE \'YES\'
END AS "null",
CASE WHEN pg_catalog.pg_get_expr(adef.adbin, adef.adrelid, true) IS NOT NULL
THEN pg_catalog.pg_get_expr(adef.adbin, adef.adrelid, true)
END as "Default",
CASE WHEN pg_catalog.col_description(a.attrelid, a.attnum) IS NULL
THEN \'\'
ELSE pg_catalog.col_description(a.attrelid, a.attnum)
END AS "comments"
FROM pg_catalog.pg_attribute a
LEFT JOIN pg_catalog.pg_attrdef adef ON a.attrelid=adef.adrelid AND a.attnum=adef.adnum
LEFT JOIN pg_catalog.pg_type t ON a.atttypid=t.oid
WHERE a.attrelid =
(SELECT oid FROM pg_catalog.pg_class WHERE relname=' . $this->quote($tableSub) . '
AND relnamespace = (SELECT oid FROM pg_catalog.pg_namespace WHERE
nspname = \'public\')
)
AND a.attnum > 0 AND NOT a.attisdropped
ORDER BY a.attnum'
);
$fields = $this->loadObjectList();
if ($typeOnly)
{
foreach ($fields as $field)
{
$result[$field->column_name] = preg_replace("/[(0-9)]/", '', $field->type);
}
}
else
{
foreach ($fields as $field)
{
if (stristr(strtolower($field->type), "character varying"))
{
$field->Default = "";
}
if (stristr(strtolower($field->type), "text"))
{
$field->Default = "";
}
// Do some dirty translation to MySQL output.
// TODO: Come up with and implement a standard across databases.
$result[$field->column_name] = (object) array(
'column_name' => $field->column_name,
'type' => $field->type,
'null' => $field->null,
'Default' => $field->Default,
'comments' => '',
'Field' => $field->column_name,
'Type' => $field->type,
'Null' => $field->null,
// TODO: Improve query above to return primary key info as well
// 'Key' => ($field->PK == '1' ? 'PRI' : '')
);
}
}
/* Change Postgresql's NULL::* type with PHP's null one */
foreach ($fields as $field)
{
if (preg_match("/^NULL::*/", $field->Default))
{
$field->Default = null;
}
}
return $result;
}
/**
* Get the details list of keys for a table.
*
* @param string $table The name of the table.
*
* @return array An array of the column specification for the table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableKeys($table)
{
$this->connect();
// To check if table exists and prevent SQL injection
$tableList = $this->getTableList();
if (in_array($table, $tableList))
{
// Get the details columns information.
$this->setQuery('
SELECT indexname AS "idxName", indisprimary AS "isPrimary", indisunique AS "isUnique",
CASE WHEN indisprimary = true THEN
( SELECT \'ALTER TABLE \' || tablename || \' ADD \' || pg_catalog.pg_get_constraintdef(const.oid, true)
FROM pg_constraint AS const WHERE const.conname= pgClassFirst.relname )
ELSE pg_catalog.pg_get_indexdef(indexrelid, 0, true)
END AS "Query"
FROM pg_indexes
LEFT JOIN pg_class AS pgClassFirst ON indexname=pgClassFirst.relname
LEFT JOIN pg_index AS pgIndex ON pgClassFirst.oid=pgIndex.indexrelid
WHERE tablename=' . $this->quote($table) . ' ORDER BY indkey'
);
$keys = $this->loadObjectList();
return $keys;
}
return false;
}
/**
* Method to get an array of all tables in the database.
*
* @return array An array of all the tables in the database.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableList()
{
$this->connect();
$query = $this->getQuery(true)
->select('table_name')
->from('information_schema.tables')
->where('table_type=' . $this->quote('BASE TABLE'))
->where('table_schema NOT IN (' . $this->quote('pg_catalog') . ', ' . $this->quote('information_schema') . ')')
->order('table_name ASC');
$this->setQuery($query);
$tables = $this->loadColumn();
return $tables;
}
/**
* Get the details list of sequences for a table.
*
* @param string $table The name of the table.
*
* @return array An array of sequences specification for the table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableSequences($table)
{
$this->connect();
// To check if table exists and prevent SQL injection
$tableList = $this->getTableList();
if (in_array($table, $tableList))
{
$name = array(
's.relname', 'n.nspname', 't.relname', 'a.attname', 'info.data_type', 'info.minimum_value', 'info.maximum_value',
'info.increment', 'info.cycle_option'
);
$as = array('sequence', 'schema', 'table', 'column', 'data_type', 'minimum_value', 'maximum_value', 'increment', 'cycle_option');
if (version_compare($this->getVersion(), '9.1.0') >= 0)
{
$name[] .= 'info.start_value';
$as[] .= 'start_value';
}
// Get the details columns information.
$query = $this->getQuery(true)
->select($this->quoteName($name, $as))
->from('pg_class AS s')
->join('LEFT', "pg_depend d ON d.objid=s.oid AND d.classid='pg_class'::regclass AND d.refclassid='pg_class'::regclass")
->join('LEFT', 'pg_class t ON t.oid=d.refobjid')
->join('LEFT', 'pg_namespace n ON n.oid=t.relnamespace')
->join('LEFT', 'pg_attribute a ON a.attrelid=t.oid AND a.attnum=d.refobjsubid')
->join('LEFT', 'information_schema.sequences AS info ON info.sequence_name=s.relname')
->where("s.relkind='S' AND d.deptype='a' AND t.relname=" . $this->quote($table));
$this->setQuery($query);
$seq = $this->loadObjectList();
return $seq;
}
return false;
}
/**
* Get the version of the database connector.
*
* @return string The database connector version.
*
* @since 12.1
*/
public function getVersion()
{
$this->connect();
$version = pg_version($this->connection);
return $version['server'];
}
/**
* Method to get the auto-incremented value from the last INSERT statement.
* To be called after the INSERT statement, it's MANDATORY to have a sequence on
* every primary key table.
*
* To get the auto incremented value it's possible to call this function after
* INSERT INTO query, or use INSERT INTO with RETURNING clause.
*
* @example with insertid() call:
* $query = $this->getQuery(true)
* ->insert('jos_dbtest')
* ->columns('title,start_date,description')
* ->values("'testTitle2nd','1971-01-01','testDescription2nd'");
* $this->setQuery($query);
* $this->execute();
* $id = $this->insertid();
*
* @example with RETURNING clause:
* $query = $this->getQuery(true)
* ->insert('jos_dbtest')
* ->columns('title,start_date,description')
* ->values("'testTitle2nd','1971-01-01','testDescription2nd'")
* ->returning('id');
* $this->setQuery($query);
* $id = $this->loadResult();
*
* @return integer The value of the auto-increment field from the last inserted row.
*
* @since 12.1
*/
public function insertid()
{
$this->connect();
$insertQuery = $this->getQuery(false, true);
$table = $insertQuery->__get('insert')->getElements();
/* find sequence column name */
$colNameQuery = $this->getQuery(true);
$colNameQuery->select('column_default')
->from('information_schema.columns')
->where("table_name=" . $this->quote($this->replacePrefix(str_replace('"', '', $table[0]))), 'AND')
->where("column_default LIKE '%nextval%'");
$this->setQuery($colNameQuery);
$colName = $this->loadRow();
$changedColName = str_replace('nextval', 'currval', $colName);
$insertidQuery = $this->getQuery(true);
$insertidQuery->select($changedColName);
$this->setQuery($insertidQuery);
$insertVal = $this->loadRow();
return $insertVal[0];
}
/**
* Locks a table in the database.
*
* @param string $tableName The name of the table to unlock.
*
* @return F0FDatabaseDriverPostgresql Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function lockTable($tableName)
{
$this->transactionStart();
$this->setQuery('LOCK TABLE ' . $this->quoteName($tableName) . ' IN ACCESS EXCLUSIVE MODE')->execute();
return $this;
}
/**
* Execute the SQL statement.
*
* @return mixed A database cursor resource on success, boolean false on failure.
*
* @since 12.1
* @throws RuntimeException
*/
public function execute()
{
$this->connect();
if (!is_resource($this->connection))
{
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
// Take a local copy so that we don't modify the original query and cause issues later
$query = $this->replacePrefix((string) $this->sql);
if (!($this->sql instanceof F0FDatabaseQuery) && ($this->limit > 0 || $this->offset > 0))
{
$query .= ' LIMIT ' . $this->limit . ' OFFSET ' . $this->offset;
}
// Increment the query counter.
$this->count++;
// Reset the error values.
$this->errorNum = 0;
$this->errorMsg = '';
// If debugging is enabled then let's log the query.
if ($this->debug)
{
// Add the query to the object queue.
$this->log[] = $query;
if (class_exists('JLog'))
{
JLog::add($query, JLog::DEBUG, 'databasequery');
}
$this->timings[] = microtime(true);
}
// Execute the query. Error suppression is used here to prevent warnings/notices that the connection has been lost.
$this->cursor = @pg_query($this->connection, $query);
if ($this->debug)
{
$this->timings[] = microtime(true);
if (defined('DEBUG_BACKTRACE_IGNORE_ARGS'))
{
$this->callStacks[] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
}
else
{
$this->callStacks[] = debug_backtrace();
}
}
// If an error occurred handle it.
if (!$this->cursor)
{
// Get the error number and message before we execute any more queries.
$errorNum = $this->getErrorNumber();
$errorMsg = $this->getErrorMessage($query);
// Check if the server was disconnected.
if (!$this->connected())
{
try
{
// Attempt to reconnect.
$this->connection = null;
$this->connect();
}
// If connect fails, ignore that exception and throw the normal exception.
catch (RuntimeException $e)
{
$this->errorNum = $this->getErrorNumber();
$this->errorMsg = $this->getErrorMessage($query);
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, null, $e);
}
// Since we were able to reconnect, run the query again.
return $this->execute();
}
// The server was not disconnected.
else
{
// Get the error number and message from before we tried to reconnect.
$this->errorNum = $errorNum;
$this->errorMsg = $errorMsg;
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg);
}
}
return $this->cursor;
}
/**
* Renames a table in the database.
*
* @param string $oldTable The name of the table to be renamed
* @param string $newTable The new name for the table.
* @param string $backup Not used by PostgreSQL.
* @param string $prefix Not used by PostgreSQL.
*
* @return F0FDatabaseDriverPostgresql Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function renameTable($oldTable, $newTable, $backup = null, $prefix = null)
{
$this->connect();
// To check if table exists and prevent SQL injection
$tableList = $this->getTableList();
// Origin Table does not exist
if (!in_array($oldTable, $tableList))
{
// Origin Table not found
throw new RuntimeException('Table not found in Postgresql database.');
}
else
{
/* Rename indexes */
$this->setQuery(
'SELECT relname
FROM pg_class
WHERE oid IN (
SELECT indexrelid
FROM pg_index, pg_class
WHERE pg_class.relname=' . $this->quote($oldTable, true) . '
AND pg_class.oid=pg_index.indrelid );'
);
$oldIndexes = $this->loadColumn();
foreach ($oldIndexes as $oldIndex)
{
$changedIdxName = str_replace($oldTable, $newTable, $oldIndex);
$this->setQuery('ALTER INDEX ' . $this->escape($oldIndex) . ' RENAME TO ' . $this->escape($changedIdxName));
$this->execute();
}
/* Rename sequence */
$this->setQuery(
'SELECT relname
FROM pg_class
WHERE relkind = \'S\'
AND relnamespace IN (
SELECT oid
FROM pg_namespace
WHERE nspname NOT LIKE \'pg_%\'
AND nspname != \'information_schema\'
)
AND relname LIKE \'%' . $oldTable . '%\' ;'
);
$oldSequences = $this->loadColumn();
foreach ($oldSequences as $oldSequence)
{
$changedSequenceName = str_replace($oldTable, $newTable, $oldSequence);
$this->setQuery('ALTER SEQUENCE ' . $this->escape($oldSequence) . ' RENAME TO ' . $this->escape($changedSequenceName));
$this->execute();
}
/* Rename table */
$this->setQuery('ALTER TABLE ' . $this->escape($oldTable) . ' RENAME TO ' . $this->escape($newTable));
$this->execute();
}
return true;
}
/**
* Selects the database, but redundant for PostgreSQL
*
* @param string $database Database name to select.
*
* @return boolean Always true
*
* @since 12.1
*/
public function select($database)
{
return true;
}
/**
* Custom settings for UTF support
*
* @return integer Zero on success, -1 on failure
*
* @since 12.1
*/
public function setUtf()
{
$this->connect();
return pg_set_client_encoding($this->connection, 'UTF8');
}
/**
* This function return a field value as a prepared string to be used in a SQL statement.
*
* @param array $columns Array of table's column returned by ::getTableColumns.
* @param string $field_name The table field's name.
* @param string $field_value The variable value to quote and return.
*
* @return string The quoted string.
*
* @since 12.1
*/
public function sqlValue($columns, $field_name, $field_value)
{
switch ($columns[$field_name])
{
case 'boolean':
$val = 'NULL';
if ($field_value == 't')
{
$val = 'TRUE';
}
elseif ($field_value == 'f')
{
$val = 'FALSE';
}
break;
case 'bigint':
case 'bigserial':
case 'integer':
case 'money':
case 'numeric':
case 'real':
case 'smallint':
case 'serial':
case 'numeric,':
$val = strlen($field_value) == 0 ? 'NULL' : $field_value;
break;
case 'date':
case 'timestamp without time zone':
if (empty($field_value))
{
$field_value = $this->getNullDate();
}
$val = $this->quote($field_value);
break;
default:
$val = $this->quote($field_value);
break;
}
return $val;
}
/**
* Method to commit a transaction.
*
* @param boolean $toSavepoint If true, commit to the last savepoint.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionCommit($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
if ($this->setQuery('COMMIT')->execute())
{
$this->transactionDepth = 0;
}
return;
}
$this->transactionDepth--;
}
/**
* Method to roll back a transaction.
*
* @param boolean $toSavepoint If true, rollback to the last savepoint.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionRollback($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
if ($this->setQuery('ROLLBACK')->execute())
{
$this->transactionDepth = 0;
}
return;
}
$savepoint = 'SP_' . ($this->transactionDepth - 1);
$this->setQuery('ROLLBACK TO SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth--;
$this->setQuery('RELEASE SAVEPOINT ' . $this->quoteName($savepoint))->execute();
}
}
/**
* Method to initialize a transaction.
*
* @param boolean $asSavepoint If true and a transaction is already active, a savepoint will be created.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionStart($asSavepoint = false)
{
$this->connect();
if (!$asSavepoint || !$this->transactionDepth)
{
if ($this->setQuery('START TRANSACTION')->execute())
{
$this->transactionDepth = 1;
}
return;
}
$savepoint = 'SP_' . $this->transactionDepth;
$this->setQuery('SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth++;
}
}
/**
* Method to fetch a row from the result set cursor as an array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchArray($cursor = null)
{
return pg_fetch_row($cursor ? $cursor : $this->cursor);
}
/**
* Method to fetch a row from the result set cursor as an associative array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchAssoc($cursor = null)
{
return pg_fetch_assoc($cursor ? $cursor : $this->cursor);
}
/**
* Method to fetch a row from the result set cursor as an object.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
* @param string $class The class name to use for the returned row object.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchObject($cursor = null, $class = 'stdClass')
{
return pg_fetch_object(is_null($cursor) ? $this->cursor : $cursor, null, $class);
}
/**
* Method to free up the memory used for the result set.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return void
*
* @since 12.1
*/
protected function freeResult($cursor = null)
{
pg_free_result($cursor ? $cursor : $this->cursor);
}
/**
* Inserts a row into a table based on an object's properties.
*
* @param string $table The name of the database table to insert into.
* @param object &$object A reference to an object whose public properties match the table fields.
* @param string $key The name of the primary key. If provided the object property is updated.
*
* @return boolean True on success.
*
* @since 12.1
* @throws RuntimeException
*/
public function insertObject($table, &$object, $key = null)
{
$columns = $this->getTableColumns($table);
$fields = array();
$values = array();
// Iterate over the object variables to build the query fields and values.
foreach (get_object_vars($object) as $k => $v)
{
// Only process non-null scalars.
if (is_array($v) or is_object($v) or $v === null)
{
continue;
}
// Ignore any internal fields or primary keys with value 0.
if (($k[0] == "_") || ($k == $key && (($v === 0) || ($v === '0'))))
{
continue;
}
// Prepare and sanitize the fields and values for the database query.
$fields[] = $this->quoteName($k);
$values[] = $this->sqlValue($columns, $k, $v);
}
// Create the base insert statement.
$query = $this->getQuery(true)
->insert($this->quoteName($table))
->columns($fields)
->values(implode(',', $values));
$retVal = false;
if ($key)
{
$query->returning($key);
// Set the query and execute the insert.
$this->setQuery($query);
$id = $this->loadResult();
if ($id)
{
$object->$key = $id;
$retVal = true;
}
}
else
{
// Set the query and execute the insert.
$this->setQuery($query);
if ($this->execute())
{
$retVal = true;
}
}
return $retVal;
}
/**
* Test to see if the PostgreSQL connector is available.
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function isSupported()
{
return (function_exists('pg_connect'));
}
/**
* Returns an array containing database's table list.
*
* @return array The database's table list.
*
* @since 12.1
*/
public function showTables()
{
$this->connect();
$query = $this->getQuery(true)
->select('table_name')
->from('information_schema.tables')
->where('table_type = ' . $this->quote('BASE TABLE'))
->where('table_schema NOT IN (' . $this->quote('pg_catalog') . ', ' . $this->quote('information_schema') . ' )');
$this->setQuery($query);
$tableList = $this->loadColumn();
return $tableList;
}
/**
* Get the substring position inside a string
*
* @param string $substring The string being sought
* @param string $string The string/column being searched
*
* @return integer The position of $substring in $string
*
* @since 12.1
*/
public function getStringPositionSql( $substring, $string )
{
$this->connect();
$query = "SELECT POSITION( $substring IN $string )";
$this->setQuery($query);
$position = $this->loadRow();
return $position['position'];
}
/**
* Generate a random value
*
* @return float The random generated number
*
* @since 12.1
*/
public function getRandom()
{
$this->connect();
$this->setQuery('SELECT RANDOM()');
$random = $this->loadAssoc();
return $random['random'];
}
/**
* Get the query string to alter the database character set.
*
* @param string $dbName The database name
*
* @return string The query that alter the database query string
*
* @since 12.1
*/
public function getAlterDbCharacterSet( $dbName )
{
$query = 'ALTER DATABASE ' . $this->quoteName($dbName) . ' SET CLIENT_ENCODING TO ' . $this->quote('UTF8');
return $query;
}
/**
* Get the query string to create new Database in correct PostgreSQL syntax.
*
* @param object $options object coming from "initialise" function to pass user and database name to database driver.
* @param boolean $utf True if the database supports the UTF-8 character set, not used in PostgreSQL "CREATE DATABASE" query.
*
* @return string The query that creates database, owned by $options['user']
*
* @since 12.1
*/
public function getCreateDbQuery($options, $utf)
{
$query = 'CREATE DATABASE ' . $this->quoteName($options->db_name) . ' OWNER ' . $this->quoteName($options->db_user);
if ($utf)
{
$query .= ' ENCODING ' . $this->quote('UTF-8');
}
return $query;
}
/**
* This function replaces a string identifier <var>$prefix</var> with the string held is the
* <var>tablePrefix</var> class variable.
*
* @param string $query The SQL statement to prepare.
* @param string $prefix The common table prefix.
*
* @return string The processed SQL statement.
*
* @since 12.1
*/
public function replacePrefix($query, $prefix = '#__')
{
$query = trim($query);
if (strpos($query, '\''))
{
// Sequence name quoted with ' ' but need to be replaced
if (strpos($query, 'currval'))
{
$query = explode('currval', $query);
for ($nIndex = 1; $nIndex < count($query); $nIndex = $nIndex + 2)
{
$query[$nIndex] = str_replace($prefix, $this->tablePrefix, $query[$nIndex]);
}
$query = implode('currval', $query);
}
// Sequence name quoted with ' ' but need to be replaced
if (strpos($query, 'nextval'))
{
$query = explode('nextval', $query);
for ($nIndex = 1; $nIndex < count($query); $nIndex = $nIndex + 2)
{
$query[$nIndex] = str_replace($prefix, $this->tablePrefix, $query[$nIndex]);
}
$query = implode('nextval', $query);
}
// Sequence name quoted with ' ' but need to be replaced
if (strpos($query, 'setval'))
{
$query = explode('setval', $query);
for ($nIndex = 1; $nIndex < count($query); $nIndex = $nIndex + 2)
{
$query[$nIndex] = str_replace($prefix, $this->tablePrefix, $query[$nIndex]);
}
$query = implode('setval', $query);
}
$explodedQuery = explode('\'', $query);
for ($nIndex = 0; $nIndex < count($explodedQuery); $nIndex = $nIndex + 2)
{
if (strpos($explodedQuery[$nIndex], $prefix))
{
$explodedQuery[$nIndex] = str_replace($prefix, $this->tablePrefix, $explodedQuery[$nIndex]);
}
}
$replacedQuery = implode('\'', $explodedQuery);
}
else
{
$replacedQuery = str_replace($prefix, $this->tablePrefix, $query);
}
return $replacedQuery;
}
/**
* Method to release a savepoint.
*
* @param string $savepointName Savepoint's name to release
*
* @return void
*
* @since 12.1
*/
public function releaseTransactionSavepoint( $savepointName )
{
$this->connect();
$this->setQuery('RELEASE SAVEPOINT ' . $this->quoteName($this->escape($savepointName)));
$this->execute();
}
/**
* Method to create a savepoint.
*
* @param string $savepointName Savepoint's name to create
*
* @return void
*
* @since 12.1
*/
public function transactionSavepoint( $savepointName )
{
$this->connect();
$this->setQuery('SAVEPOINT ' . $this->quoteName($this->escape($savepointName)));
$this->execute();
}
/**
* Unlocks tables in the database, this command does not exist in PostgreSQL,
* it is automatically done on commit or rollback.
*
* @return F0FDatabaseDriverPostgresql Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function unlockTables()
{
$this->transactionCommit();
return $this;
}
/**
* Updates a row in a table based on an object's properties.
*
* @param string $table The name of the database table to update.
* @param object &$object A reference to an object whose public properties match the table fields.
* @param array $key The name of the primary key.
* @param boolean $nulls True to update null fields or false to ignore them.
*
* @return boolean True on success.
*
* @since 12.1
* @throws RuntimeException
*/
public function updateObject($table, &$object, $key, $nulls = false)
{
$columns = $this->getTableColumns($table);
$fields = array();
$where = array();
if (is_string($key))
{
$key = array($key);
}
if (is_object($key))
{
$key = (array) $key;
}
// Create the base update statement.
$statement = 'UPDATE ' . $this->quoteName($table) . ' SET %s WHERE %s';
// Iterate over the object variables to build the query fields/value pairs.
foreach (get_object_vars($object) as $k => $v)
{
// Only process scalars that are not internal fields.
if (is_array($v) or is_object($v) or $k[0] == '_')
{
continue;
}
// Set the primary key to the WHERE clause instead of a field to update.
if (in_array($k, $key))
{
$key_val = $this->sqlValue($columns, $k, $v);
$where[] = $this->quoteName($k) . '=' . $key_val;
continue;
}
// Prepare and sanitize the fields and values for the database query.
if ($v === null)
{
// If the value is null and we want to update nulls then set it.
if ($nulls)
{
$val = 'NULL';
}
// If the value is null and we do not want to update nulls then ignore this field.
else
{
continue;
}
}
// The field is not null so we prep it for update.
else
{
$val = $this->sqlValue($columns, $k, $v);
}
// Add the field to be updated.
$fields[] = $this->quoteName($k) . '=' . $val;
}
// We don't have any fields to update.
if (empty($fields))
{
return true;
}
// Set the query and execute the update.
$this->setQuery(sprintf($statement, implode(",", $fields), implode(' AND ', $where)));
return $this->execute();
}
/**
* Return the actual SQL Error number
*
* @return integer The SQL Error number
*
* @since 3.4.6
*/
protected function getErrorNumber()
{
return (int) pg_result_error_field($this->cursor, PGSQL_DIAG_SQLSTATE) . ' ';
}
/**
* Return the actual SQL Error message
*
* @param string $query The SQL Query that fails
*
* @return string The SQL Error message
*
* @since 3.4.6
*/
protected function getErrorMessage($query)
{
$errorMessage = (string) pg_last_error($this->connection);
// Replace the Databaseprefix with `#__` if we are not in Debug
if (!$this->debug)
{
$errorMessage = str_replace($this->tablePrefix, '#__', $errorMessage);
$query = str_replace($this->tablePrefix, '#__', $query);
}
return $errorMessage . "SQL=" . $query;
}
}
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sqlsrv.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* SQL Server database driver
*
* @see http://msdn.microsoft.com/en-us/library/cc296152(SQL.90).aspx
* @since 12.1
*/
class F0FDatabaseDriverSqlsrv extends F0FDatabaseDriver
{
/**
* The name of the database driver.
*
* @var string
* @since 12.1
*/
public $name = 'sqlsrv';
/**
* The type of the database server family supported by this driver.
*
* @var string
* @since CMS 3.5.0
*/
public $serverType = 'mssql';
/**
* The character(s) used to quote SQL statement names such as table names or field names,
* etc. The child classes should define this as necessary. If a single character string the
* same character is used for both sides of the quoted name, else the first character will be
* used for the opening quote and the second for the closing quote.
*
* @var string
* @since 12.1
*/
protected $nameQuote = '[]';
/**
* The null or zero representation of a timestamp for the database driver. This should be
* defined in child classes to hold the appropriate value for the engine.
*
* @var string
* @since 12.1
*/
protected $nullDate = '1900-01-01 00:00:00';
/**
* @var string The minimum supported database version.
* @since 12.1
*/
protected static $dbMinimum = '10.50.1600.1';
/**
* Test to see if the SQLSRV connector is available.
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function isSupported()
{
return (function_exists('sqlsrv_connect'));
}
/**
* Constructor.
*
* @param array $options List of options used to configure the connection
*
* @since 12.1
*/
public function __construct($options)
{
// Get some basic values from the options.
$options['host'] = (isset($options['host'])) ? $options['host'] : 'localhost';
$options['user'] = (isset($options['user'])) ? $options['user'] : '';
$options['password'] = (isset($options['password'])) ? $options['password'] : '';
$options['database'] = (isset($options['database'])) ? $options['database'] : '';
$options['select'] = (isset($options['select'])) ? (bool) $options['select'] : true;
// Finalize initialisation
parent::__construct($options);
}
/**
* Destructor.
*
* @since 12.1
*/
public function __destruct()
{
$this->disconnect();
}
/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 12.1
* @throws RuntimeException
*/
public function connect()
{
if ($this->connection)
{
return;
}
// Build the connection configuration array.
$config = array(
'Database' => $this->options['database'],
'uid' => $this->options['user'],
'pwd' => $this->options['password'],
'CharacterSet' => 'UTF-8',
'ReturnDatesAsStrings' => true);
// Make sure the SQLSRV extension for PHP is installed and enabled.
if (!function_exists('sqlsrv_connect'))
{
throw new RuntimeException('PHP extension sqlsrv_connect is not available.');
}
// Attempt to connect to the server.
if (!($this->connection = @ sqlsrv_connect($this->options['host'], $config)))
{
throw new RuntimeException('Database sqlsrv_connect failed');
}
// Make sure that DB warnings are not returned as errors.
sqlsrv_configure('WarningsReturnAsErrors', 0);
// If auto-select is enabled select the given database.
if ($this->options['select'] && !empty($this->options['database']))
{
$this->select($this->options['database']);
}
// Set charactersets.
$this->utf = $this->setUtf();
}
/**
* Disconnects the database.
*
* @return void
*
* @since 12.1
*/
public function disconnect()
{
// Close the connection.
if (is_resource($this->connection))
{
foreach ($this->disconnectHandlers as $h)
{
call_user_func_array($h, array( &$this));
}
sqlsrv_close($this->connection);
}
$this->connection = null;
}
/**
* Get table constraints
*
* @param string $tableName The name of the database table.
*
* @return array Any constraints available for the table.
*
* @since 12.1
*/
protected function getTableConstraints($tableName)
{
$this->connect();
$query = $this->getQuery(true);
$this->setQuery(
'SELECT CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE TABLE_NAME = ' . $query->quote($tableName)
);
return $this->loadColumn();
}
/**
* Rename constraints.
*
* @param array $constraints Array(strings) of table constraints
* @param string $prefix A string
* @param string $backup A string
*
* @return void
*
* @since 12.1
*/
protected function renameConstraints($constraints = array(), $prefix = null, $backup = null)
{
$this->connect();
foreach ($constraints as $constraint)
{
$this->setQuery('sp_rename ' . $constraint . ',' . str_replace($prefix, $backup, $constraint));
$this->execute();
}
}
/**
* Method to escape a string for usage in an SQL statement.
*
* The escaping for MSSQL isn't handled in the driver though that would be nice. Because of this we need
* to handle the escaping ourselves.
*
* @param string $text The string to be escaped.
* @param boolean $extra Optional parameter to provide extra escaping.
*
* @return string The escaped string.
*
* @since 12.1
*/
public function escape($text, $extra = false)
{
$result = addslashes($text);
$result = str_replace("\'", "''", $result);
$result = str_replace('\"', '"', $result);
$result = str_replace('\/', '/', $result);
if ($extra)
{
// We need the below str_replace since the search in sql server doesn't recognize _ character.
$result = str_replace('_', '[_]', $result);
}
return $result;
}
/**
* Determines if the connection to the server is active.
*
* @return boolean True if connected to the database engine.
*
* @since 12.1
*/
public function connected()
{
// TODO: Run a blank query here
return true;
}
/**
* Drops a table from the database.
*
* @param string $tableName The name of the database table to drop.
* @param boolean $ifExists Optionally specify that the table must exist before it is dropped.
*
* @return F0FDatabaseDriverSqlsrv Returns this object to support chaining.
*
* @since 12.1
*/
public function dropTable($tableName, $ifExists = true)
{
$this->connect();
$query = $this->getQuery(true);
if ($ifExists)
{
$this->setQuery(
'IF EXISTS(SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = ' . $query->quote($tableName) . ') DROP TABLE ' . $tableName
);
}
else
{
$this->setQuery('DROP TABLE ' . $tableName);
}
$this->execute();
return $this;
}
/**
* Get the number of affected rows for the previous executed SQL statement.
*
* @return integer The number of affected rows.
*
* @since 12.1
*/
public function getAffectedRows()
{
$this->connect();
return sqlsrv_rows_affected($this->cursor);
}
/**
* Method to get the database collation in use by sampling a text field of a table in the database.
*
* @return mixed The collation in use by the database or boolean false if not supported.
*
* @since 12.1
*/
public function getCollation()
{
// TODO: Not fake this
return 'MSSQL UTF-8 (UCS2)';
}
/**
* Method to get the database connection collation, as reported by the driver. If the connector doesn't support
* reporting this value please return an empty string.
*
* @return string
*/
public function getConnectionCollation()
{
// TODO: Not fake this
return 'MSSQL UTF-8 (UCS2)';
}
/**
* Get the number of returned rows for the previous executed SQL statement.
*
* @param resource $cursor An optional database cursor resource to extract the row count from.
*
* @return integer The number of returned rows.
*
* @since 12.1
*/
public function getNumRows($cursor = null)
{
$this->connect();
return sqlsrv_num_rows($cursor ? $cursor : $this->cursor);
}
/**
* Retrieves field information about the given tables.
*
* @param mixed $table A table name
* @param boolean $typeOnly True to only return field types.
*
* @return array An array of fields.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableColumns($table, $typeOnly = true)
{
$result = array();
$table_temp = $this->replacePrefix((string) $table);
// Set the query to get the table fields statement.
$this->setQuery(
'SELECT column_name as Field, data_type as Type, is_nullable as \'Null\', column_default as \'Default\'' .
' FROM information_schema.columns WHERE table_name = ' . $this->quote($table_temp)
);
$fields = $this->loadObjectList();
// If we only want the type as the value add just that to the list.
if ($typeOnly)
{
foreach ($fields as $field)
{
$result[$field->Field] = preg_replace("/[(0-9)]/", '', $field->Type);
}
}
// If we want the whole field data object add that to the list.
else
{
foreach ($fields as $field)
{
if (stristr(strtolower($field->Type), "nvarchar"))
{
$field->Default = "";
}
$result[$field->Field] = $field;
}
}
return $result;
}
/**
* Shows the table CREATE statement that creates the given tables.
*
* This is unsupported by MSSQL.
*
* @param mixed $tables A table name or a list of table names.
*
* @return array A list of the create SQL for the tables.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableCreate($tables)
{
$this->connect();
return '';
}
/**
* Get the details list of keys for a table.
*
* @param string $table The name of the table.
*
* @return array An array of the column specification for the table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableKeys($table)
{
$this->connect();
// TODO To implement.
return array();
}
/**
* Method to get an array of all tables in the database.
*
* @return array An array of all the tables in the database.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableList()
{
$this->connect();
// Set the query to get the tables statement.
$this->setQuery('SELECT name FROM ' . $this->getDatabase() . '.sys.Tables WHERE type = \'U\';');
$tables = $this->loadColumn();
return $tables;
}
/**
* Get the version of the database connector.
*
* @return string The database connector version.
*
* @since 12.1
*/
public function getVersion()
{
$this->connect();
$version = sqlsrv_server_info($this->connection);
return $version['SQLServerVersion'];
}
/**
* Inserts a row into a table based on an object's properties.
*
* @param string $table The name of the database table to insert into.
* @param object &$object A reference to an object whose public properties match the table fields.
* @param string $key The name of the primary key. If provided the object property is updated.
*
* @return boolean True on success.
*
* @since 12.1
* @throws RuntimeException
*/
public function insertObject($table, &$object, $key = null)
{
$fields = array();
$values = array();
$statement = 'INSERT INTO ' . $this->quoteName($table) . ' (%s) VALUES (%s)';
foreach (get_object_vars($object) as $k => $v)
{
// Only process non-null scalars.
if (is_array($v) or is_object($v) or $v === null)
{
continue;
}
if (!$this->checkFieldExists($table, $k))
{
continue;
}
if ($k[0] == '_')
{
// Internal field
continue;
}
if ($k == $key && $key == 0)
{
continue;
}
$fields[] = $this->quoteName($k);
$values[] = $this->Quote($v);
}
// Set the query and execute the insert.
$this->setQuery(sprintf($statement, implode(',', $fields), implode(',', $values)));
if (!$this->execute())
{
return false;
}
$id = $this->insertid();
if ($key && $id)
{
$object->$key = $id;
}
return true;
}
/**
* Method to get the auto-incremented value from the last INSERT statement.
*
* @return integer The value of the auto-increment field from the last inserted row.
*
* @since 12.1
*/
public function insertid()
{
$this->connect();
// TODO: SELECT IDENTITY
$this->setQuery('SELECT @@IDENTITY');
return (int) $this->loadResult();
}
/**
* Method to get the first field of the first row of the result set from the database query.
*
* @return mixed The return value or null if the query failed.
*
* @since 12.1
* @throws RuntimeException
*/
public function loadResult()
{
$ret = null;
// Execute the query and get the result set cursor.
if (!($cursor = $this->execute()))
{
return null;
}
// Get the first row from the result set as an array.
if ($row = sqlsrv_fetch_array($cursor, SQLSRV_FETCH_NUMERIC))
{
$ret = $row[0];
}
// Free up system resources and return.
$this->freeResult($cursor);
// For SQLServer - we need to strip slashes
$ret = stripslashes($ret);
return $ret;
}
/**
* Execute the SQL statement.
*
* @return mixed A database cursor resource on success, boolean false on failure.
*
* @since 12.1
* @throws RuntimeException
* @throws Exception
*/
public function execute()
{
$this->connect();
if (!is_resource($this->connection))
{
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
// Take a local copy so that we don't modify the original query and cause issues later
$query = $this->replacePrefix((string) $this->sql);
if (!($this->sql instanceof F0FDatabaseQuery) && ($this->limit > 0 || $this->offset > 0))
{
$query = $this->limit($query, $this->limit, $this->offset);
}
// Increment the query counter.
$this->count++;
// Reset the error values.
$this->errorNum = 0;
$this->errorMsg = '';
// If debugging is enabled then let's log the query.
if ($this->debug)
{
// Add the query to the object queue.
$this->log[] = $query;
if (class_exists('JLog'))
{
JLog::add($query, JLog::DEBUG, 'databasequery');
}
$this->timings[] = microtime(true);
}
// SQLSrv_num_rows requires a static or keyset cursor.
if (strncmp(ltrim(strtoupper($query)), 'SELECT', strlen('SELECT')) == 0)
{
$array = array('Scrollable' => SQLSRV_CURSOR_KEYSET);
}
else
{
$array = array();
}
// Execute the query. Error suppression is used here to prevent warnings/notices that the connection has been lost.
$this->cursor = @sqlsrv_query($this->connection, $query, array(), $array);
if ($this->debug)
{
$this->timings[] = microtime(true);
if (defined('DEBUG_BACKTRACE_IGNORE_ARGS'))
{
$this->callStacks[] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
}
else
{
$this->callStacks[] = debug_backtrace();
}
}
// If an error occurred handle it.
if (!$this->cursor)
{
// Get the error number and message before we execute any more queries.
$errorNum = $this->getErrorNumber();
$errorMsg = $this->getErrorMessage($query);
// Check if the server was disconnected.
if (!$this->connected())
{
try
{
// Attempt to reconnect.
$this->connection = null;
$this->connect();
}
// If connect fails, ignore that exception and throw the normal exception.
catch (RuntimeException $e)
{
// Get the error number and message.
$this->errorNum = $this->getErrorNumber();
$this->errorMsg = $this->getErrorMessage($query);
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum, $e);
}
// Since we were able to reconnect, run the query again.
return $this->execute();
}
// The server was not disconnected.
else
{
// Get the error number and message from before we tried to reconnect.
$this->errorNum = $errorNum;
$this->errorMsg = $errorMsg;
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
}
return $this->cursor;
}
/**
* This function replaces a string identifier <var>$prefix</var> with the string held is the
* <var>tablePrefix</var> class variable.
*
* @param string $query The SQL statement to prepare.
* @param string $prefix The common table prefix.
*
* @return string The processed SQL statement.
*
* @since 12.1
*/
public function replacePrefix($query, $prefix = '#__')
{
$startPos = 0;
$literal = '';
$query = trim($query);
$n = strlen($query);
while ($startPos < $n)
{
$ip = strpos($query, $prefix, $startPos);
if ($ip === false)
{
break;
}
$j = strpos($query, "N'", $startPos);
$k = strpos($query, '"', $startPos);
if (($k !== false) && (($k < $j) || ($j === false)))
{
$quoteChar = '"';
$j = $k;
}
else
{
$quoteChar = "'";
}
if ($j === false)
{
$j = $n;
}
$literal .= str_replace($prefix, $this->tablePrefix, substr($query, $startPos, $j - $startPos));
$startPos = $j;
$j = $startPos + 1;
if ($j >= $n)
{
break;
}
// Quote comes first, find end of quote
while (true)
{
$k = strpos($query, $quoteChar, $j);
$escaped = false;
if ($k === false)
{
break;
}
$l = $k - 1;
while ($l >= 0 && $query{$l} == '\\')
{
$l--;
$escaped = !$escaped;
}
if ($escaped)
{
$j = $k + 1;
continue;
}
break;
}
if ($k === false)
{
// Error in the query - no end quote; ignore it
break;
}
$literal .= substr($query, $startPos, $k - $startPos + 1);
$startPos = $k + 1;
}
if ($startPos < $n)
{
$literal .= substr($query, $startPos, $n - $startPos);
}
return $literal;
}
/**
* Select a database for use.
*
* @param string $database The name of the database to select for use.
*
* @return boolean True if the database was successfully selected.
*
* @since 12.1
* @throws RuntimeException
*/
public function select($database)
{
$this->connect();
if (!$database)
{
return false;
}
if (!sqlsrv_query($this->connection, 'USE ' . $database, null, array('scrollable' => SQLSRV_CURSOR_STATIC)))
{
throw new RuntimeException('Could not connect to database');
}
return true;
}
/**
* Set the connection to use UTF-8 character encoding.
*
* @return boolean True on success.
*
* @since 12.1
*/
public function setUtf()
{
return false;
}
/**
* Method to commit a transaction.
*
* @param boolean $toSavepoint If true, commit to the last savepoint.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionCommit($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
if ($this->setQuery('COMMIT TRANSACTION')->execute())
{
$this->transactionDepth = 0;
}
return;
}
$this->transactionDepth--;
}
/**
* Method to roll back a transaction.
*
* @param boolean $toSavepoint If true, rollback to the last savepoint.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionRollback($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
if ($this->setQuery('ROLLBACK TRANSACTION')->execute())
{
$this->transactionDepth = 0;
}
return;
}
$savepoint = 'SP_' . ($this->transactionDepth - 1);
$this->setQuery('ROLLBACK TRANSACTION ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth--;
}
}
/**
* Method to initialize a transaction.
*
* @param boolean $asSavepoint If true and a transaction is already active, a savepoint will be created.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionStart($asSavepoint = false)
{
$this->connect();
if (!$asSavepoint || !$this->transactionDepth)
{
if ($this->setQuery('BEGIN TRANSACTION')->execute())
{
$this->transactionDepth = 1;
}
return;
}
$savepoint = 'SP_' . $this->transactionDepth;
$this->setQuery('BEGIN TRANSACTION ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth++;
}
}
/**
* Method to fetch a row from the result set cursor as an array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchArray($cursor = null)
{
return sqlsrv_fetch_array($cursor ? $cursor : $this->cursor, SQLSRV_FETCH_NUMERIC);
}
/**
* Method to fetch a row from the result set cursor as an associative array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchAssoc($cursor = null)
{
return sqlsrv_fetch_array($cursor ? $cursor : $this->cursor, SQLSRV_FETCH_ASSOC);
}
/**
* Method to fetch a row from the result set cursor as an object.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
* @param string $class The class name to use for the returned row object.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchObject($cursor = null, $class = 'stdClass')
{
return sqlsrv_fetch_object($cursor ? $cursor : $this->cursor, $class);
}
/**
* Method to free up the memory used for the result set.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return void
*
* @since 12.1
*/
protected function freeResult($cursor = null)
{
sqlsrv_free_stmt($cursor ? $cursor : $this->cursor);
}
/**
* Method to check and see if a field exists in a table.
*
* @param string $table The table in which to verify the field.
* @param string $field The field to verify.
*
* @return boolean True if the field exists in the table.
*
* @since 12.1
*/
protected function checkFieldExists($table, $field)
{
$this->connect();
$table = $this->replacePrefix((string) $table);
$query = "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '$table' AND COLUMN_NAME = '$field'" .
" ORDER BY ORDINAL_POSITION";
$this->setQuery($query);
if ($this->loadResult())
{
return true;
}
else
{
return false;
}
}
/**
* Method to wrap an SQL statement to provide a LIMIT and OFFSET behavior for scrolling through a result set.
*
* @param string $query The SQL statement to process.
* @param integer $limit The maximum affected rows to set.
* @param integer $offset The affected row offset to set.
*
* @return string The processed SQL statement.
*
* @since 12.1
*/
protected function limit($query, $limit, $offset)
{
if ($limit == 0 && $offset == 0)
{
return $query;
}
$start = $offset + 1;
$end = $offset + $limit;
$orderBy = stristr($query, 'ORDER BY');
if (is_null($orderBy) || empty($orderBy))
{
$orderBy = 'ORDER BY (select 0)';
}
$query = str_ireplace($orderBy, '', $query);
$rowNumberText = ', ROW_NUMBER() OVER (' . $orderBy . ') AS RowNumber FROM ';
$query = preg_replace('/\sFROM\s/i', $rowNumberText, $query, 1);
return $query;
}
/**
* Renames a table in the database.
*
* @param string $oldTable The name of the table to be renamed
* @param string $newTable The new name for the table.
* @param string $backup Table prefix
* @param string $prefix For the table - used to rename constraints in non-mysql databases
*
* @return F0FDatabaseDriverSqlsrv Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function renameTable($oldTable, $newTable, $backup = null, $prefix = null)
{
$constraints = array();
if (!is_null($prefix) && !is_null($backup))
{
$constraints = $this->getTableConstraints($oldTable);
}
if (!empty($constraints))
{
$this->renameConstraints($constraints, $prefix, $backup);
}
$this->setQuery("sp_rename '" . $oldTable . "', '" . $newTable . "'");
return $this->execute();
}
/**
* Locks a table in the database.
*
* @param string $tableName The name of the table to lock.
*
* @return F0FDatabaseDriverSqlsrv Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function lockTable($tableName)
{
return $this;
}
/**
* Unlocks tables in the database.
*
* @return F0FDatabaseDriverSqlsrv Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function unlockTables()
{
return $this;
}
/**
* Return the actual SQL Error number
*
* @return integer The SQL Error number
*
* @since 3.4.6
*/
protected function getErrorNumber()
{
$errors = sqlsrv_errors();
return $errors[0]['SQLSTATE'];
}
/**
* Return the actual SQL Error message
*
* @param string $query The SQL Query that fails
*
* @return string The SQL Error message
*
* @since 3.4.6
*/
protected function getErrorMessage($query)
{
$errors = sqlsrv_errors();
$errorMessage = (string) $errors[0]['message'];
// Replace the Databaseprefix with `#__` if we are not in Debug
if (!$this->debug)
{
$errorMessage = str_replace($this->tablePrefix, '#__', $errorMessage);
$query = str_replace($this->tablePrefix, '#__', $query);
}
return $errorMessage . ' SQL=' . $query;
}
}
PK �)#]H}� sqlazure.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* SQL Server database driver
*
* @see http://msdn.microsoft.com/en-us/library/ee336279.aspx
* @since 12.1
*/
class F0FDatabaseDriverSqlazure extends F0FDatabaseDriverSqlsrv
{
/**
* The name of the database driver.
*
* @var string
* @since 12.1
*/
public $name = 'sqlazure';
}
PK �)#]ar��< �<
joomla.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* This crazy three line bit is required to convince Joomla! to load JDatabaseInterface which is on the same file as the
* abstract JDatabaseDriver class for reasons that beat me. It makes no sense. Furthermore, jimport on Joomla! 3.4
* doesn't seem to actually load the file, merely registering the association in the autoloader. Hence the class_exists
* in here.
*/
jimport('joomla.database.driver');
jimport('joomla.database.driver.mysqli');
class_exists('JDatabaseDriver', true);
/**
* Joomla! pass-through database driver.
*/
class F0FDatabaseDriverJoomla extends F0FDatabase implements F0FDatabaseInterface
{
/** @var F0FDatabase The real database connection object */
private $dbo;
/**
* @var string The character(s) used to quote SQL statement names such as table names or field names,
* etc. The child classes should define this as necessary. If a single character string the
* same character is used for both sides of the quoted name, else the first character will be
* used for the opening quote and the second for the closing quote.
* @since 11.1
*/
protected $nameQuote = '';
/**
* Is this driver supported
*
* @since 11.2
*/
public static function isSupported()
{
return true;
}
/**
* Database object constructor
*
* @param array $options List of options used to configure the connection
*/
public function __construct($options = array())
{
// Get best matching Akeeba Backup driver instance
$this->dbo = JFactory::getDbo();
$reflection = new ReflectionClass($this->dbo);
try
{
$refProp = $reflection->getProperty('nameQuote');
$refProp->setAccessible(true);
$this->nameQuote = $refProp->getValue($this->dbo);
}
catch (Exception $e)
{
$this->nameQuote = '`';
}
}
public function close()
{
if (method_exists($this->dbo, 'close'))
{
$this->dbo->close();
}
elseif (method_exists($this->dbo, 'disconnect'))
{
$this->dbo->disconnect();
}
}
public function disconnect()
{
$this->close();
}
public function open()
{
if (method_exists($this->dbo, 'open'))
{
$this->dbo->open();
}
elseif (method_exists($this->dbo, 'connect'))
{
$this->dbo->connect();
}
}
public function connect()
{
$this->open();
}
public function connected()
{
if (method_exists($this->dbo, 'connected'))
{
return $this->dbo->connected();
}
return true;
}
public function escape($text, $extra = false)
{
return $this->dbo->escape($text, $extra);
}
public function execute()
{
if (method_exists($this->dbo, 'execute'))
{
return $this->dbo->execute();
}
return $this->dbo->query();
}
public function getAffectedRows()
{
if (method_exists($this->dbo, 'getAffectedRows'))
{
return $this->dbo->getAffectedRows();
}
return 0;
}
public function getCollation()
{
if (method_exists($this->dbo, 'getCollation'))
{
return $this->dbo->getCollation();
}
return 'utf8_general_ci';
}
public function getConnection()
{
if (method_exists($this->dbo, 'getConnection'))
{
return $this->dbo->getConnection();
}
return null;
}
public function getCount()
{
if (method_exists($this->dbo, 'getCount'))
{
return $this->dbo->getCount();
}
return 0;
}
public function getDateFormat()
{
if (method_exists($this->dbo, 'getDateFormat'))
{
return $this->dbo->getDateFormat();
}
return 'Y-m-d H:i:s';;
}
public function getMinimum()
{
if (method_exists($this->dbo, 'getMinimum'))
{
return $this->dbo->getMinimum();
}
return '5.0.40';
}
public function getNullDate()
{
if (method_exists($this->dbo, 'getNullDate'))
{
return $this->dbo->getNullDate();
}
return '0000-00-00 00:00:00';
}
public function getNumRows($cursor = null)
{
if (method_exists($this->dbo, 'getNumRows'))
{
return $this->dbo->getNumRows($cursor);
}
return 0;
}
public function getQuery($new = false)
{
if (method_exists($this->dbo, 'getQuery'))
{
return $this->dbo->getQuery($new);
}
return null;
}
public function getTableColumns($table, $typeOnly = true)
{
if (method_exists($this->dbo, 'getTableColumns'))
{
return $this->dbo->getTableColumns($table, $typeOnly);
}
$result = $this->dbo->getTableFields(array($table), $typeOnly);
return $result[$table];
}
public function getTableKeys($tables)
{
if (method_exists($this->dbo, 'getTableKeys'))
{
return $this->dbo->getTableKeys($tables);
}
return array();
}
public function getTableList()
{
if (method_exists($this->dbo, 'getTableList'))
{
return $this->dbo->getTableList();
}
return array();
}
public function getVersion()
{
if (method_exists($this->dbo, 'getVersion'))
{
return $this->dbo->getVersion();
}
return '5.0.40';
}
public function insertid()
{
if (method_exists($this->dbo, 'insertid'))
{
return $this->dbo->insertid();
}
return null;
}
public function insertObject($table, &$object, $key = null)
{
if (method_exists($this->dbo, 'insertObject'))
{
return $this->dbo->insertObject($table, $object, $key);
}
return null;
}
public function loadAssoc()
{
if (method_exists($this->dbo, 'loadAssoc'))
{
return $this->dbo->loadAssoc();
}
return null;
}
public function loadAssocList($key = null, $column = null)
{
if (method_exists($this->dbo, 'loadAssocList'))
{
return $this->dbo->loadAssocList($key, $column);
}
return null;
}
public function loadObject($class = 'stdClass')
{
if (method_exists($this->dbo, 'loadObject'))
{
return $this->dbo->loadObject($class);
}
return null;
}
public function loadObjectList($key = '', $class = 'stdClass')
{
if (method_exists($this->dbo, 'loadObjectList'))
{
return $this->dbo->loadObjectList($key, $class);
}
return null;
}
public function loadResult()
{
if (method_exists($this->dbo, 'loadResult'))
{
return $this->dbo->loadResult();
}
return null;
}
public function loadRow()
{
if (method_exists($this->dbo, 'loadRow'))
{
return $this->dbo->loadRow();
}
return null;
}
public function loadRowList($key = null)
{
if (method_exists($this->dbo, 'loadRowList'))
{
return $this->dbo->loadRowList($key);
}
return null;
}
public function lockTable($tableName)
{
if (method_exists($this->dbo, 'lockTable'))
{
return $this->dbo->lockTable($this);
}
return $this;
}
public function quote($text, $escape = true)
{
if (method_exists($this->dbo, 'quote'))
{
return $this->dbo->quote($text, $escape);
}
return $text;
}
public function select($database)
{
if (method_exists($this->dbo, 'select'))
{
return $this->dbo->select($database);
}
return false;
}
public function setQuery($query, $offset = 0, $limit = 0)
{
if (method_exists($this->dbo, 'setQuery'))
{
return $this->dbo->setQuery($query, $offset, $limit);
}
return false;
}
public function transactionCommit($toSavepoint = false)
{
if (method_exists($this->dbo, 'transactionCommit'))
{
$this->dbo->transactionCommit($toSavepoint);
}
}
public function transactionRollback($toSavepoint = false)
{
if (method_exists($this->dbo, 'transactionRollback'))
{
$this->dbo->transactionRollback($toSavepoint);
}
}
public function transactionStart($asSavepoint = false)
{
if (method_exists($this->dbo, 'transactionStart'))
{
$this->dbo->transactionStart($asSavepoint);
}
}
public function unlockTables()
{
if (method_exists($this->dbo, 'unlockTables'))
{
return $this->dbo->unlockTables();
}
return $this;
}
public function updateObject($table, &$object, $key, $nulls = false)
{
if (method_exists($this->dbo, 'updateObject'))
{
return $this->dbo->updateObject($table, $object, $key, $nulls);
}
return false;
}
public function getLog()
{
if (method_exists($this->dbo, 'getLog'))
{
return $this->dbo->getLog();
}
return array();
}
public function dropTable($table, $ifExists = true)
{
if (method_exists($this->dbo, 'dropTable'))
{
return $this->dbo->dropTable($table, $ifExists);
}
return $this;
}
public function getTableCreate($tables)
{
if (method_exists($this->dbo, 'getTableCreate'))
{
return $this->dbo->getTableCreate($tables);
}
return array();
}
public function renameTable($oldTable, $newTable, $backup = null, $prefix = null)
{
if (method_exists($this->dbo, 'renameTable'))
{
return $this->dbo->renameTable($oldTable, $newTable, $backup, $prefix);
}
return $this;
}
public function setUtf()
{
if (method_exists($this->dbo, 'setUtf'))
{
return $this->dbo->setUtf();
}
return false;
}
protected function freeResult($cursor = null)
{
return false;
}
/**
* Method to get an array of values from the <var>$offset</var> field in each row of the result set from
* the database query.
*
* @param integer $offset The row offset to use to build the result array.
*
* @return mixed The return value or null if the query failed.
*
* @since 11.1
* @throws RuntimeException
*/
public function loadColumn($offset = 0)
{
if (method_exists($this->dbo, 'loadColumn'))
{
return $this->dbo->loadColumn($offset);
}
return $this->dbo->loadResultArray($offset);
}
/**
* Wrap an SQL statement identifier name such as column, table or database names in quotes to prevent injection
* risks and reserved word conflicts.
*
* @param mixed $name The identifier name to wrap in quotes, or an array of identifier names to wrap in quotes.
* Each type supports dot-notation name.
* @param mixed $as The AS query part associated to $name. It can be string or array, in latter case it has to be
* same length of $name; if is null there will not be any AS part for string or array element.
*
* @return mixed The quote wrapped name, same type of $name.
*
* @since 11.1
*/
public function quoteName($name, $as = null)
{
if (is_string($name))
{
$quotedName = $this->quoteNameStr(explode('.', $name));
$quotedAs = '';
if (!is_null($as))
{
settype($as, 'array');
$quotedAs .= ' AS ' . $this->quoteNameStr($as);
}
return $quotedName . $quotedAs;
}
else
{
$fin = array();
if (is_null($as))
{
foreach ($name as $str)
{
$fin[] = $this->quoteName($str);
}
}
elseif (is_array($name) && (count($name) == count($as)))
{
$count = count($name);
for ($i = 0; $i < $count; $i++)
{
$fin[] = $this->quoteName($name[$i], $as[$i]);
}
}
return $fin;
}
}
/**
* Quote strings coming from quoteName call.
*
* @param array $strArr Array of strings coming from quoteName dot-explosion.
*
* @return string Dot-imploded string of quoted parts.
*
* @since 11.3
*/
protected function quoteNameStr($strArr)
{
$parts = array();
$q = $this->nameQuote;
foreach ($strArr as $part)
{
if (is_null($part))
{
continue;
}
if (strlen($q) == 1)
{
$parts[] = $q . $part . $q;
}
else
{
$parts[] = $q{0} . $part . $q{1};
}
}
return implode('.', $parts);
}
/**
* Gets the error message from the database connection.
*
* @param boolean $escaped True to escape the message string for use in JavaScript.
*
* @return string The error message for the most recent query.
*
* @since 11.1
*/
public function getErrorMsg($escaped = false)
{
if (method_exists($this->dbo, 'getErrorMsg'))
{
$errorMessage = $this->dbo->getErrorMsg();
}
else
{
$errorMessage = $this->errorMsg;
}
if ($escaped)
{
return addslashes($errorMessage);
}
return $errorMessage;
}
/**
* Gets the error number from the database connection.
*
* @return integer The error number for the most recent query.
*
* @since 11.1
* @deprecated 13.3 (Platform) & 4.0 (CMS)
*/
public function getErrorNum()
{
if (method_exists($this->dbo, 'getErrorNum'))
{
$errorNum = $this->dbo->getErrorNum();
}
else
{
$errorNum = $this->getErrorNum;
}
return $errorNum;
}
/**
* Return the most recent error message for the database connector.
*
* @param boolean $showSQL True to display the SQL statement sent to the database as well as the error.
*
* @return string The error message for the most recent query.
*/
public function stderr($showSQL = false)
{
if (method_exists($this->dbo, 'stderr'))
{
return $this->dbo->stderr($showSQL);
}
return parent::stderr($showSQL);
}
/**
* Magic method to proxy all calls to the loaded database driver object
*/
public function __call($name, array $arguments)
{
if (is_null($this->dbo))
{
throw new Exception('F0F database driver is not loaded');
}
if (method_exists($this->dbo, $name) || in_array($name, array('q', 'nq', 'qn', 'query')))
{
switch ($name)
{
case 'execute':
$name = 'query';
break;
case 'q':
$name = 'quote';
break;
case 'qn':
case 'nq':
switch (count($arguments))
{
case 0 :
$result = $this->quoteName();
break;
case 1 :
$result = $this->quoteName($arguments[0]);
break;
case 2:
default:
$result = $this->quoteName($arguments[0], $arguments[1]);
break;
}
return $result;
break;
}
switch (count($arguments))
{
case 0 :
$result = $this->dbo->$name();
break;
case 1 :
$result = $this->dbo->$name($arguments[0]);
break;
case 2:
$result = $this->dbo->$name($arguments[0], $arguments[1]);
break;
case 3:
$result = $this->dbo->$name($arguments[0], $arguments[1], $arguments[2]);
break;
case 4:
$result = $this->dbo->$name($arguments[0], $arguments[1], $arguments[2], $arguments[3]);
break;
case 5:
$result = $this->dbo->$name($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4]);
break;
default:
// Resort to using call_user_func_array for many segments
$result = call_user_func_array(array($this->dbo, $name), $arguments);
}
if (class_exists('JDatabase') && is_object($result) && ($result instanceof JDatabase))
{
return $this;
}
return $result;
}
else
{
throw new \Exception('Method ' . $name . ' not found in F0FDatabase');
}
}
public function __get($name)
{
if (isset($this->dbo->$name) || property_exists($this->dbo, $name))
{
return $this->dbo->$name;
}
else
{
$this->dbo->$name = null;
user_error('Database driver does not support property ' . $name);
}
}
public function __set($name, $value)
{
if (isset($this->dbo->name) || property_exists($this->dbo, $name))
{
$this->dbo->$name = $value;
}
else
{
$this->dbo->$name = null;
user_error('Database driver not support property ' . $name);
}
}
}
PK �)#]���� ) )
sqlite.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* SQLite database driver
*
* @see http://php.net/pdo
* @since 12.1
*/
class F0FDatabaseDriverSqlite extends F0FDatabaseDriverPdo
{
/**
* The name of the database driver.
*
* @var string
* @since 12.1
*/
public $name = 'sqlite';
/**
* The type of the database server family supported by this driver.
*
* @var string
* @since CMS 3.5.0
*/
public $serverType = 'sqlite';
/**
* The character(s) used to quote SQL statement names such as table names or field names,
* etc. The child classes should define this as necessary. If a single character string the
* same character is used for both sides of the quoted name, else the first character will be
* used for the opening quote and the second for the closing quote.
*
* @var string
* @since 12.1
*/
protected $nameQuote = '`';
/**
* Destructor.
*
* @since 12.1
*/
public function __destruct()
{
$this->freeResult();
unset($this->connection);
}
/**
* Disconnects the database.
*
* @return void
*
* @since 12.1
*/
public function disconnect()
{
$this->freeResult();
unset($this->connection);
}
/**
* Drops a table from the database.
*
* @param string $tableName The name of the database table to drop.
* @param boolean $ifExists Optionally specify that the table must exist before it is dropped.
*
* @return F0FDatabaseDriverSqlite Returns this object to support chaining.
*
* @since 12.1
*/
public function dropTable($tableName, $ifExists = true)
{
$this->connect();
$query = $this->getQuery(true);
$this->setQuery('DROP TABLE ' . ($ifExists ? 'IF EXISTS ' : '') . $query->quoteName($tableName));
$this->execute();
return $this;
}
/**
* Method to escape a string for usage in an SQLite statement.
*
* Note: Using query objects with bound variables is
* preferable to the below.
*
* @param string $text The string to be escaped.
* @param boolean $extra Unused optional parameter to provide extra escaping.
*
* @return string The escaped string.
*
* @since 12.1
*/
public function escape($text, $extra = false)
{
if (is_int($text) || is_float($text))
{
return $text;
}
return SQLite3::escapeString($text);
}
/**
* Method to get the database collation in use by sampling a text field of a table in the database.
*
* @return mixed The collation in use by the database or boolean false if not supported.
*
* @since 12.1
*/
public function getCollation()
{
return $this->charset;
}
/**
* Method to get the database connection collation, as reported by the driver. If the connector doesn't support
* reporting this value please return an empty string.
*
* @return string
*/
public function getConnectionCollation()
{
return $this->charset;
}
/**
* Shows the table CREATE statement that creates the given tables.
*
* Note: Doesn't appear to have support in SQLite
*
* @param mixed $tables A table name or a list of table names.
*
* @return array A list of the create SQL for the tables.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableCreate($tables)
{
$this->connect();
// Sanitize input to an array and iterate over the list.
settype($tables, 'array');
return $tables;
}
/**
* Retrieves field information about a given table.
*
* @param string $table The name of the database table.
* @param boolean $typeOnly True to only return field types.
*
* @return array An array of fields for the database table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableColumns($table, $typeOnly = true)
{
$this->connect();
$columns = array();
$query = $this->getQuery(true);
$fieldCasing = $this->getOption(PDO::ATTR_CASE);
$this->setOption(PDO::ATTR_CASE, PDO::CASE_UPPER);
$table = strtoupper($table);
$query->setQuery('pragma table_info(' . $table . ')');
$this->setQuery($query);
$fields = $this->loadObjectList();
if ($typeOnly)
{
foreach ($fields as $field)
{
$columns[$field->NAME] = $field->TYPE;
}
}
else
{
foreach ($fields as $field)
{
// Do some dirty translation to MySQL output.
// TODO: Come up with and implement a standard across databases.
$columns[$field->NAME] = (object) array(
'Field' => $field->NAME,
'Type' => $field->TYPE,
'Null' => ($field->NOTNULL == '1' ? 'NO' : 'YES'),
'Default' => $field->DFLT_VALUE,
'Key' => ($field->PK != '0' ? 'PRI' : '')
);
}
}
$this->setOption(PDO::ATTR_CASE, $fieldCasing);
return $columns;
}
/**
* Get the details list of keys for a table.
*
* @param string $table The name of the table.
*
* @return array An array of the column specification for the table.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableKeys($table)
{
$this->connect();
$keys = array();
$query = $this->getQuery(true);
$fieldCasing = $this->getOption(PDO::ATTR_CASE);
$this->setOption(PDO::ATTR_CASE, PDO::CASE_UPPER);
$table = strtoupper($table);
$query->setQuery('pragma table_info( ' . $table . ')');
// $query->bind(':tableName', $table);
$this->setQuery($query);
$rows = $this->loadObjectList();
foreach ($rows as $column)
{
if ($column->PK == 1)
{
$keys[$column->NAME] = $column;
}
}
$this->setOption(PDO::ATTR_CASE, $fieldCasing);
return $keys;
}
/**
* Method to get an array of all tables in the database (schema).
*
* @return array An array of all the tables in the database.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableList()
{
$this->connect();
$type = 'table';
$query = $this->getQuery(true)
->select('name')
->from('sqlite_master')
->where('type = :type')
->bind(':type', $type)
->order('name');
$this->setQuery($query);
$tables = $this->loadColumn();
return $tables;
}
/**
* Get the version of the database connector.
*
* @return string The database connector version.
*
* @since 12.1
*/
public function getVersion()
{
$this->connect();
$this->setQuery("SELECT sqlite_version()");
return $this->loadResult();
}
/**
* Select a database for use.
*
* @param string $database The name of the database to select for use.
*
* @return boolean True if the database was successfully selected.
*
* @since 12.1
* @throws RuntimeException
*/
public function select($database)
{
$this->connect();
return true;
}
/**
* Set the connection to use UTF-8 character encoding.
*
* Returns false automatically for the Oracle driver since
* you can only set the character set when the connection
* is created.
*
* @return boolean True on success.
*
* @since 12.1
*/
public function setUtf()
{
$this->connect();
return false;
}
/**
* Locks a table in the database.
*
* @param string $table The name of the table to unlock.
*
* @return F0FDatabaseDriverSqlite Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function lockTable($table)
{
return $this;
}
/**
* Renames a table in the database.
*
* @param string $oldTable The name of the table to be renamed
* @param string $newTable The new name for the table.
* @param string $backup Not used by Sqlite.
* @param string $prefix Not used by Sqlite.
*
* @return F0FDatabaseDriverSqlite Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function renameTable($oldTable, $newTable, $backup = null, $prefix = null)
{
$this->setQuery('ALTER TABLE ' . $oldTable . ' RENAME TO ' . $newTable)->execute();
return $this;
}
/**
* Unlocks tables in the database.
*
* @return F0FDatabaseDriverSqlite Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function unlockTables()
{
return $this;
}
/**
* Test to see if the PDO ODBC connector is available.
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function isSupported()
{
return class_exists('PDO') && in_array('sqlite', PDO::getAvailableDrivers());
}
/**
* Method to commit a transaction.
*
* @param boolean $toSavepoint If true, commit to the last savepoint.
*
* @return void
*
* @since 12.3
* @throws RuntimeException
*/
public function transactionCommit($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
parent::transactionCommit($toSavepoint);
}
else
{
$this->transactionDepth--;
}
}
/**
* Method to roll back a transaction.
*
* @param boolean $toSavepoint If true, rollback to the last savepoint.
*
* @return void
*
* @since 12.3
* @throws RuntimeException
*/
public function transactionRollback($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
parent::transactionRollback($toSavepoint);
}
else
{
$savepoint = 'SP_' . ($this->transactionDepth - 1);
$this->setQuery('ROLLBACK TO ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth--;
}
}
}
/**
* Method to initialize a transaction.
*
* @param boolean $asSavepoint If true and a transaction is already active, a savepoint will be created.
*
* @return void
*
* @since 12.3
* @throws RuntimeException
*/
public function transactionStart($asSavepoint = false)
{
$this->connect();
if (!$asSavepoint || !$this->transactionDepth)
{
parent::transactionStart($asSavepoint);
}
$savepoint = 'SP_' . $this->transactionDepth;
$this->setQuery('SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth++;
}
}
}
PK �)#]@���<4 <4 pdomysql.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* MySQL database driver supporting PDO based connections
*
* @package Joomla.Platform
* @subpackage Database
* @see http://php.net/manual/en/ref.pdo-mysql.php
* @since 3.4
*/
class F0FDatabaseDriverPdomysql extends F0FDatabaseDriverPdo
{
/**
* The name of the database driver.
*
* @var string
* @since 3.4
*/
public $name = 'pdomysql';
/**
* The type of the database server family supported by this driver.
*
* @var string
* @since CMS 3.5.0
*/
public $serverType = 'mysql';
/**
* The character(s) used to quote SQL statement names such as table names or field names,
* etc. The child classes should define this as necessary. If a single character string the
* same character is used for both sides of the quoted name, else the first character will be
* used for the opening quote and the second for the closing quote.
*
* @var string
* @since 3.4
*/
protected $nameQuote = '`';
/**
* The null or zero representation of a timestamp for the database driver. This should be
* defined in child classes to hold the appropriate value for the engine.
*
* @var string
* @since 3.4
*/
protected $nullDate = '0000-00-00 00:00:00';
/**
* The minimum supported database version.
*
* @var string
* @since 3.4
*/
protected static $dbMinimum = '5.0.4';
/**
* Constructor.
*
* @param array $options Array of database options with keys: host, user, password, database, select.
*
* @since 3.4
*/
public function __construct($options)
{
/**
* Pre-populate the UTF-8 Multibyte compatibility flag. Unfortuantely PDO won't report the server version
* unless we're connected to it and we cannot connect to it unless we know if it supports utf8mb4 which requires
* us knowing the server version. Between this chicken and egg issue we _assume_ it's supported and we'll just
* catch any problems at connection time.
*/
$this->utf8mb4 = true;
// Get some basic values from the options.
$options['driver'] = 'mysql';
$options['charset'] = (isset($options['charset'])) ? $options['charset'] : 'utf8';
if ($this->utf8mb4 && ($options['charset'] == 'utf8'))
{
$options['charset'] = 'utf8mb4';
}
$this->charset = $options['charset'];
// Finalize initialisation.
parent::__construct($options);
}
/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 3.4
* @throws RuntimeException
*/
public function connect()
{
try
{
// Try to connect to MySQL
parent::connect();
}
catch (\RuntimeException $e)
{
// If the connection failed but not because of the wrong character set bubble up the exception
if (!$this->utf8mb4 || ($this->options['charset'] != 'utf8mb4'))
{
throw $e;
}
/**
* If the connection failed and I was trying to use the utf8mb4 charset then it is likely that the server
* doesn't support utf8mb4 despite claiming otherwise.
*
* This happens on old MySQL server versions (less than 5.5.3) using the mysqlnd PHP driver. Since mysqlnd
* masks the server version and reports only its own we can not be sure if the server actually does support
* UTF-8 Multibyte (i.e. it's MySQL 5.5.3 or later). Since the utf8mb4 charset is undefined in this case we
* catch the error and determine that utf8mb4 is not supported!
*/
$this->utf8mb4 = false;
$this->options['charset'] = 'utf8';
parent::connect();
}
$this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$this->connection->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
}
/**
* Test to see if the MySQL connector is available.
*
* @return boolean True on success, false otherwise.
*
* @since 3.4
*/
public static function isSupported()
{
return class_exists('PDO') && in_array('mysql', PDO::getAvailableDrivers());
}
/**
* Drops a table from the database.
*
* @param string $tableName The name of the database table to drop.
* @param boolean $ifExists Optionally specify that the table must exist before it is dropped.
*
* @return F0FDatabaseDriverPdomysql Returns this object to support chaining.
*
* @since 3.4
* @throws RuntimeException
*/
public function dropTable($tableName, $ifExists = true)
{
$this->connect();
$query = $this->getQuery(true);
$query->setQuery('DROP TABLE ' . ($ifExists ? 'IF EXISTS ' : '') . $this->quoteName($tableName));
$this->setQuery($query);
$this->execute();
return $this;
}
/**
* Select a database for use.
*
* @param string $database The name of the database to select for use.
*
* @return boolean True if the database was successfully selected.
*
* @since 3.4
* @throws RuntimeException
*/
public function select($database)
{
$this->connect();
$this->setQuery('USE ' . $this->quoteName($database));
$this->execute();
return $this;
}
/**
* Method to get the database collation in use by sampling a text field of a table in the database.
*
* @return mixed The collation in use by the database (string) or boolean false if not supported.
*
* @since 3.4
* @throws RuntimeException
*/
public function getCollation()
{
$this->connect();
// Attempt to get the database collation by accessing the server system variable.
$this->setQuery('SHOW VARIABLES LIKE "collation_database"');
$result = $this->loadObject();
if (property_exists($result, 'Value'))
{
return $result->Value;
}
else
{
return false;
}
}
/**
* Method to get the database connection collation, as reported by the driver. If the connector doesn't support
* reporting this value please return an empty string.
*
* @return string
*/
public function getConnectionCollation()
{
$this->connect();
// Attempt to get the database collation by accessing the server system variable.
$this->setQuery('SHOW VARIABLES LIKE "collation_connection"');
$result = $this->loadObject();
if (property_exists($result, 'Value'))
{
return $result->Value;
}
else
{
return false;
}
}
/**
* Shows the table CREATE statement that creates the given tables.
*
* @param mixed $tables A table name or a list of table names.
*
* @return array A list of the create SQL for the tables.
*
* @since 3.4
* @throws RuntimeException
*/
public function getTableCreate($tables)
{
$this->connect();
// Initialise variables.
$result = array();
// Sanitize input to an array and iterate over the list.
settype($tables, 'array');
foreach ($tables as $table)
{
$this->setQuery('SHOW CREATE TABLE ' . $this->quoteName($table));
$row = $this->loadRow();
// Populate the result array based on the create statements.
$result[$table] = $row[1];
}
return $result;
}
/**
* Retrieves field information about a given table.
*
* @param string $table The name of the database table.
* @param boolean $typeOnly True to only return field types.
*
* @return array An array of fields for the database table.
*
* @since 3.4
* @throws RuntimeException
*/
public function getTableColumns($table, $typeOnly = true)
{
$this->connect();
$result = array();
// Set the query to get the table fields statement.
$this->setQuery('SHOW FULL COLUMNS FROM ' . $this->quoteName($table));
$fields = $this->loadObjectList();
// If we only want the type as the value add just that to the list.
if ($typeOnly)
{
foreach ($fields as $field)
{
$result[$field->Field] = preg_replace("/[(0-9)]/", '', $field->Type);
}
}
// If we want the whole field data object add that to the list.
else
{
foreach ($fields as $field)
{
$result[$field->Field] = $field;
}
}
return $result;
}
/**
* Get the details list of keys for a table.
*
* @param string $table The name of the table.
*
* @return array An array of the column specification for the table.
*
* @since 3.4
* @throws RuntimeException
*/
public function getTableKeys($table)
{
$this->connect();
// Get the details columns information.
$this->setQuery('SHOW KEYS FROM ' . $this->quoteName($table));
$keys = $this->loadObjectList();
return $keys;
}
/**
* Method to get an array of all tables in the database.
*
* @return array An array of all the tables in the database.
*
* @since 3.4
* @throws RuntimeException
*/
public function getTableList()
{
$this->connect();
// Set the query to get the tables statement.
$this->setQuery('SHOW TABLES');
$tables = $this->loadColumn();
return $tables;
}
/**
* Get the version of the database connector.
*
* @return string The database connector version.
*
* @since 3.4
*/
public function getVersion()
{
$this->connect();
return $this->getOption(PDO::ATTR_SERVER_VERSION);
}
/**
* Locks a table in the database.
*
* @param string $table The name of the table to unlock.
*
* @return F0FDatabaseDriverPdomysql Returns this object to support chaining.
*
* @since 3.4
* @throws RuntimeException
*/
public function lockTable($table)
{
$this->setQuery('LOCK TABLES ' . $this->quoteName($table) . ' WRITE')->execute();
return $this;
}
/**
* Renames a table in the database.
*
* @param string $oldTable The name of the table to be renamed
* @param string $newTable The new name for the table.
* @param string $backup Not used by MySQL.
* @param string $prefix Not used by MySQL.
*
* @return F0FDatabaseDriverPdomysql Returns this object to support chaining.
*
* @since 3.4
* @throws RuntimeException
*/
public function renameTable($oldTable, $newTable, $backup = null, $prefix = null)
{
$this->setQuery('RENAME TABLE ' . $this->quoteName($oldTable) . ' TO ' . $this->quoteName($newTable));
$this->execute();
return $this;
}
/**
* Method to escape a string for usage in an SQL statement.
*
* Oracle escaping reference:
* http://www.orafaq.com/wiki/SQL_FAQ#How_does_one_escape_special_characters_when_writing_SQL_queries.3F
*
* SQLite escaping notes:
* http://www.sqlite.org/faq.html#q14
*
* Method body is as implemented by the Zend Framework
*
* Note: Using query objects with bound variables is
* preferable to the below.
*
* @param string $text The string to be escaped.
* @param boolean $extra Unused optional parameter to provide extra escaping.
*
* @return string The escaped string.
*
* @since 3.4
*/
public function escape($text, $extra = false)
{
$this->connect();
if (is_int($text) || is_float($text))
{
return $text;
}
$result = substr($this->connection->quote($text), 1, -1);
if ($extra)
{
$result = addcslashes($result, '%_');
}
return $result;
}
/**
* Unlocks tables in the database.
*
* @return F0FDatabaseDriverPdomysql Returns this object to support chaining.
*
* @since 3.4
* @throws RuntimeException
*/
public function unlockTables()
{
$this->setQuery('UNLOCK TABLES')->execute();
return $this;
}
/**
* Method to commit a transaction.
*
* @param boolean $toSavepoint If true, commit to the last savepoint.
*
* @return void
*
* @since 3.4
* @throws RuntimeException
*/
public function transactionCommit($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
parent::transactionCommit($toSavepoint);
}
else
{
$this->transactionDepth--;
}
}
/**
* Method to roll back a transaction.
*
* @param boolean $toSavepoint If true, rollback to the last savepoint.
*
* @return void
*
* @since 3.4
* @throws RuntimeException
*/
public function transactionRollback($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
parent::transactionRollback($toSavepoint);
}
else
{
$savepoint = 'SP_' . ($this->transactionDepth - 1);
$this->setQuery('ROLLBACK TO SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth--;
}
}
}
/**
* Method to initialize a transaction.
*
* @param boolean $asSavepoint If true and a transaction is already active, a savepoint will be created.
*
* @return void
*
* @since 3.4
* @throws RuntimeException
*/
public function transactionStart($asSavepoint = false)
{
$this->connect();
if (!$asSavepoint || !$this->transactionDepth)
{
parent::transactionStart($asSavepoint);
}
else
{
$savepoint = 'SP_' . $this->transactionDepth;
$this->setQuery('SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth++;
}
}
}
}
PK �)#]�TćN8 N8 mysql.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* MySQL database driver
*
* @see http://dev.mysql.com/doc/
* @since 12.1
* @deprecated Will be removed when the minimum supported PHP version no longer includes the deprecated PHP `mysql` extension
*/
class F0FDatabaseDriverMysql extends F0FDatabaseDriverMysqli
{
/**
* The name of the database driver.
*
* @var string
* @since 12.1
*/
public $name = 'mysql';
/**
* Constructor.
*
* @param array $options Array of database options with keys: host, user, password, database, select.
*
* @since 12.1
*/
public function __construct($options)
{
// PHP's `mysql` extension is not present in PHP 7, block instantiation in this environment
if (PHP_MAJOR_VERSION >= 7)
{
throw new RuntimeException(
'This driver is unsupported in PHP 7, please use the MySQLi or PDO MySQL driver instead.'
);
}
// Get some basic values from the options.
$options['host'] = (isset($options['host'])) ? $options['host'] : 'localhost';
$options['user'] = (isset($options['user'])) ? $options['user'] : 'root';
$options['password'] = (isset($options['password'])) ? $options['password'] : '';
$options['database'] = (isset($options['database'])) ? $options['database'] : '';
$options['select'] = (isset($options['select'])) ? (bool) $options['select'] : true;
// Finalize initialisation.
parent::__construct($options);
}
/**
* Destructor.
*
* @since 12.1
*/
public function __destruct()
{
$this->disconnect();
}
/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 12.1
* @throws RuntimeException
*/
public function connect()
{
if ($this->connection)
{
return;
}
// Make sure the MySQL extension for PHP is installed and enabled.
if (!self::isSupported())
{
throw new RuntimeException('Could not connect to MySQL.');
}
// Attempt to connect to the server.
if (!($this->connection = @ mysql_connect($this->options['host'], $this->options['user'], $this->options['password'], true)))
{
throw new RuntimeException('Could not connect to MySQL.');
}
// Set sql_mode to non_strict mode
mysql_query("SET @@SESSION.sql_mode = '';", $this->connection);
// If auto-select is enabled select the given database.
if ($this->options['select'] && !empty($this->options['database']))
{
$this->select($this->options['database']);
}
// Pre-populate the UTF-8 Multibyte compatibility flag based on server version
$this->utf8mb4 = $this->serverClaimsUtf8mb4Support();
// Set the character set (needed for MySQL 4.1.2+).
$this->utf = $this->setUtf();
// Turn MySQL profiling ON in debug mode:
if ($this->debug && $this->hasProfiling())
{
mysql_query("SET profiling = 1;", $this->connection);
}
}
/**
* Disconnects the database.
*
* @return void
*
* @since 12.1
*/
public function disconnect()
{
// Close the connection.
if (is_resource($this->connection))
{
foreach ($this->disconnectHandlers as $h)
{
call_user_func_array($h, array( &$this));
}
mysql_close($this->connection);
}
$this->connection = null;
}
/**
* Method to escape a string for usage in an SQL statement.
*
* @param string $text The string to be escaped.
* @param boolean $extra Optional parameter to provide extra escaping.
*
* @return string The escaped string.
*
* @since 12.1
*/
public function escape($text, $extra = false)
{
$this->connect();
$result = mysql_real_escape_string($text, $this->getConnection());
if ($extra)
{
$result = addcslashes($result, '%_');
}
return $result;
}
/**
* Test to see if the MySQL connector is available.
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function isSupported()
{
return (function_exists('mysql_connect'));
}
/**
* Determines if the connection to the server is active.
*
* @return boolean True if connected to the database engine.
*
* @since 12.1
*/
public function connected()
{
if (is_resource($this->connection))
{
return @mysql_ping($this->connection);
}
return false;
}
/**
* Get the number of affected rows by the last INSERT, UPDATE, REPLACE or DELETE for the previous executed SQL statement.
*
* @return integer The number of affected rows.
*
* @since 12.1
*/
public function getAffectedRows()
{
$this->connect();
return mysql_affected_rows($this->connection);
}
/**
* Get the number of returned rows for the previous executed SQL statement.
* This command is only valid for statements like SELECT or SHOW that return an actual result set.
* To retrieve the number of rows affected by a INSERT, UPDATE, REPLACE or DELETE query, use getAffectedRows().
*
* @param resource $cursor An optional database cursor resource to extract the row count from.
*
* @return integer The number of returned rows.
*
* @since 12.1
*/
public function getNumRows($cursor = null)
{
$this->connect();
return mysql_num_rows($cursor ? $cursor : $this->cursor);
}
/**
* Get the version of the database connector.
*
* @return string The database connector version.
*
* @since 12.1
*/
public function getVersion()
{
$this->connect();
return mysql_get_server_info($this->connection);
}
/**
* Method to get the auto-incremented value from the last INSERT statement.
*
* @return integer The value of the auto-increment field from the last inserted row.
*
* @since 12.1
*/
public function insertid()
{
$this->connect();
return mysql_insert_id($this->connection);
}
/**
* Execute the SQL statement.
*
* @return mixed A database cursor resource on success, boolean false on failure.
*
* @since 12.1
* @throws RuntimeException
*/
public function execute()
{
$this->connect();
if (!is_resource($this->connection))
{
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
// Take a local copy so that we don't modify the original query and cause issues later
$query = $this->replacePrefix((string) $this->sql);
if (!($this->sql instanceof F0FDatabaseQuery) && ($this->limit > 0 || $this->offset > 0))
{
$query .= ' LIMIT ' . $this->offset . ', ' . $this->limit;
}
// Increment the query counter.
$this->count++;
// Reset the error values.
$this->errorNum = 0;
$this->errorMsg = '';
// If debugging is enabled then let's log the query.
if ($this->debug)
{
// Add the query to the object queue.
$this->log[] = $query;
if (class_exists('JLog'))
{
JLog::add($query, JLog::DEBUG, 'databasequery');
}
$this->timings[] = microtime(true);
}
// Execute the query. Error suppression is used here to prevent warnings/notices that the connection has been lost.
$this->cursor = @mysql_query($query, $this->connection);
if ($this->debug)
{
$this->timings[] = microtime(true);
if (defined('DEBUG_BACKTRACE_IGNORE_ARGS'))
{
$this->callStacks[] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
}
else
{
$this->callStacks[] = debug_backtrace();
}
}
// If an error occurred handle it.
if (!$this->cursor)
{
// Get the error number and message before we execute any more queries.
$this->errorNum = $this->getErrorNumber();
$this->errorMsg = $this->getErrorMessage($query);
// Check if the server was disconnected.
if (!$this->connected())
{
try
{
// Attempt to reconnect.
$this->connection = null;
$this->connect();
}
// If connect fails, ignore that exception and throw the normal exception.
catch (RuntimeException $e)
{
// Get the error number and message.
$this->errorNum = $this->getErrorNumber();
$this->errorMsg = $this->getErrorMessage($query);
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum, $e);
}
// Since we were able to reconnect, run the query again.
return $this->execute();
}
// The server was not disconnected.
else
{
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
}
return $this->cursor;
}
/**
* Select a database for use.
*
* @param string $database The name of the database to select for use.
*
* @return boolean True if the database was successfully selected.
*
* @since 12.1
* @throws RuntimeException
*/
public function select($database)
{
$this->connect();
if (!$database)
{
return false;
}
if (!mysql_select_db($database, $this->connection))
{
throw new RuntimeException('Could not connect to database');
}
return true;
}
/**
* Set the connection to use UTF-8 character encoding.
*
* @return boolean True on success.
*
* @since 12.1
*/
public function setUtf()
{
// If UTF is not supported return false immediately
if (!$this->utf)
{
return false;
}
// Make sure we're connected to the server
$this->connect();
// Which charset should I use, plain utf8 or multibyte utf8mb4?
$charset = $this->utf8mb4 ? 'utf8mb4' : 'utf8';
$result = @mysql_set_charset($charset, $this->connection);
/**
* If I could not set the utf8mb4 charset then the server doesn't support utf8mb4 despite claiming otherwise.
* This happens on old MySQL server versions (less than 5.5.3) using the mysqlnd PHP driver. Since mysqlnd
* masks the server version and reports only its own we can not be sure if the server actually does support
* UTF-8 Multibyte (i.e. it's MySQL 5.5.3 or later). Since the utf8mb4 charset is undefined in this case we
* catch the error and determine that utf8mb4 is not supported!
*/
if (!$result && $this->utf8mb4)
{
$this->utf8mb4 = false;
$result = @mysql_set_charset('utf8', $this->connection);
}
return $result;
}
/**
* Method to fetch a row from the result set cursor as an array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchArray($cursor = null)
{
return mysql_fetch_row($cursor ? $cursor : $this->cursor);
}
/**
* Method to fetch a row from the result set cursor as an associative array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchAssoc($cursor = null)
{
return mysql_fetch_assoc($cursor ? $cursor : $this->cursor);
}
/**
* Method to fetch a row from the result set cursor as an object.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
* @param string $class The class name to use for the returned row object.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchObject($cursor = null, $class = 'stdClass')
{
return mysql_fetch_object($cursor ? $cursor : $this->cursor, $class);
}
/**
* Method to free up the memory used for the result set.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return void
*
* @since 12.1
*/
protected function freeResult($cursor = null)
{
mysql_free_result($cursor ? $cursor : $this->cursor);
}
/**
* Internal function to check if profiling is available
*
* @return boolean
*
* @since 3.1.3
*/
private function hasProfiling()
{
try
{
$res = mysql_query("SHOW VARIABLES LIKE 'have_profiling'", $this->connection);
$row = mysql_fetch_assoc($res);
return isset($row);
}
catch (Exception $e)
{
return false;
}
}
/**
* Does the database server claim to have support for UTF-8 Multibyte (utf8mb4) collation?
*
* libmysql supports utf8mb4 since 5.5.3 (same version as the MySQL server). mysqlnd supports utf8mb4 since 5.0.9.
*
* @return boolean
*
* @since CMS 3.5.0
*/
private function serverClaimsUtf8mb4Support()
{
$client_version = mysql_get_client_info();
if (strpos($client_version, 'mysqlnd') !== false)
{
$client_version = preg_replace('/^\D+([\d.]+).*/', '$1', $client_version);
return version_compare($client_version, '5.0.9', '>=');
}
else
{
return version_compare($client_version, '5.5.3', '>=');
}
}
/**
* Return the actual SQL Error number
*
* @return integer The SQL Error number
*
* @since 3.4.6
*/
protected function getErrorNumber()
{
return (int) mysql_errno($this->connection);
}
/**
* Return the actual SQL Error message
*
* @param string $query The SQL Query that fails
*
* @return string The SQL Error message
*
* @since 3.4.6
*/
protected function getErrorMessage($query)
{
$errorMessage = (string) mysql_error($this->connection);
// Replace the Databaseprefix with `#__` if we are not in Debug
if (!$this->debug)
{
$errorMessage = str_replace($this->tablePrefix, '#__', $errorMessage);
$query = str_replace($this->tablePrefix, '#__', $query);
}
return $errorMessage . ' SQL=' . $query;
}
}
PK �)#] G'��i �i pdo.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* Joomla Platform PDO Database Driver Class
*
* @see http://php.net/pdo
* @since 12.1
*/
abstract class F0FDatabaseDriverPdo extends F0FDatabaseDriver
{
/**
* The name of the database driver.
*
* @var string
* @since 12.1
*/
public $name = 'pdo';
/**
* @var PDO The database connection resource.
* @since 12.1
*/
protected $connection;
/**
* The character(s) used to quote SQL statement names such as table names or field names,
* etc. The child classes should define this as necessary. If a single character string the
* same character is used for both sides of the quoted name, else the first character will be
* used for the opening quote and the second for the closing quote.
*
* @var string
* @since 12.1
*/
protected $nameQuote = "'";
/**
* The null or zero representation of a timestamp for the database driver. This should be
* defined in child classes to hold the appropriate value for the engine.
*
* @var string
* @since 12.1
*/
protected $nullDate = '0000-00-00 00:00:00';
/**
* @var resource The prepared statement.
* @since 12.1
*/
protected $prepared;
/**
* Contains the current query execution status
*
* @var array
* @since 12.1
*/
protected $executed = false;
/**
* Constructor.
*
* @param array $options List of options used to configure the connection
*
* @since 12.1
*/
public function __construct($options)
{
// Get some basic values from the options.
$options['driver'] = (isset($options['driver'])) ? $options['driver'] : 'odbc';
$options['dsn'] = (isset($options['dsn'])) ? $options['dsn'] : '';
$options['host'] = (isset($options['host'])) ? $options['host'] : 'localhost';
$options['database'] = (isset($options['database'])) ? $options['database'] : '';
$options['user'] = (isset($options['user'])) ? $options['user'] : '';
$options['password'] = (isset($options['password'])) ? $options['password'] : '';
$options['driverOptions'] = (isset($options['driverOptions'])) ? $options['driverOptions'] : array();
$hostParts = explode(':', $options['host']);
if (!empty($hostParts[1]))
{
$options['host'] = $hostParts[0];
$options['port'] = $hostParts[1];
}
// Finalize initialisation
parent::__construct($options);
}
/**
* Destructor.
*
* @since 12.1
*/
public function __destruct()
{
$this->disconnect();
}
/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 12.1
* @throws RuntimeException
*/
public function connect()
{
if ($this->connection)
{
return;
}
// Make sure the PDO extension for PHP is installed and enabled.
if (!self::isSupported())
{
throw new RuntimeException('PDO Extension is not available.', 1);
}
$replace = array();
$with = array();
// Find the correct PDO DSN Format to use:
switch ($this->options['driver'])
{
case 'cubrid':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 33000;
$format = 'cubrid:host=#HOST#;port=#PORT#;dbname=#DBNAME#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#');
$with = array($this->options['host'], $this->options['port'], $this->options['database']);
break;
case 'dblib':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 1433;
$format = 'dblib:host=#HOST#;port=#PORT#;dbname=#DBNAME#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#');
$with = array($this->options['host'], $this->options['port'], $this->options['database']);
break;
case 'firebird':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 3050;
$format = 'firebird:dbname=#DBNAME#';
$replace = array('#DBNAME#');
$with = array($this->options['database']);
break;
case 'ibm':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 56789;
if (!empty($this->options['dsn']))
{
$format = 'ibm:DSN=#DSN#';
$replace = array('#DSN#');
$with = array($this->options['dsn']);
}
else
{
$format = 'ibm:hostname=#HOST#;port=#PORT#;database=#DBNAME#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#');
$with = array($this->options['host'], $this->options['port'], $this->options['database']);
}
break;
case 'informix':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 1526;
$this->options['protocol'] = (isset($this->options['protocol'])) ? $this->options['protocol'] : 'onsoctcp';
if (!empty($this->options['dsn']))
{
$format = 'informix:DSN=#DSN#';
$replace = array('#DSN#');
$with = array($this->options['dsn']);
}
else
{
$format = 'informix:host=#HOST#;service=#PORT#;database=#DBNAME#;server=#SERVER#;protocol=#PROTOCOL#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#', '#SERVER#', '#PROTOCOL#');
$with = array($this->options['host'], $this->options['port'], $this->options['database'], $this->options['server'], $this->options['protocol']);
}
break;
case 'mssql':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 1433;
$format = 'mssql:host=#HOST#;port=#PORT#;dbname=#DBNAME#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#');
$with = array($this->options['host'], $this->options['port'], $this->options['database']);
break;
// The pdomysql case is a special case within the CMS environment
case 'pdomysql':
case 'mysql':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 3306;
$format = 'mysql:host=#HOST#;port=#PORT#;dbname=#DBNAME#;charset=#CHARSET#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#', '#CHARSET#');
$with = array($this->options['host'], $this->options['port'], $this->options['database'], $this->options['charset']);
break;
case 'oci':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 1521;
$this->options['charset'] = (isset($this->options['charset'])) ? $this->options['charset'] : 'AL32UTF8';
if (!empty($this->options['dsn']))
{
$format = 'oci:dbname=#DSN#';
$replace = array('#DSN#');
$with = array($this->options['dsn']);
}
else
{
$format = 'oci:dbname=//#HOST#:#PORT#/#DBNAME#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#');
$with = array($this->options['host'], $this->options['port'], $this->options['database']);
}
$format .= ';charset=' . $this->options['charset'];
break;
case 'odbc':
$format = 'odbc:DSN=#DSN#;UID:#USER#;PWD=#PASSWORD#';
$replace = array('#DSN#', '#USER#', '#PASSWORD#');
$with = array($this->options['dsn'], $this->options['user'], $this->options['password']);
break;
case 'pgsql':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 5432;
$format = 'pgsql:host=#HOST#;port=#PORT#;dbname=#DBNAME#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#');
$with = array($this->options['host'], $this->options['port'], $this->options['database']);
break;
case 'sqlite':
if (isset($this->options['version']) && $this->options['version'] == 2)
{
$format = 'sqlite2:#DBNAME#';
}
else
{
$format = 'sqlite:#DBNAME#';
}
$replace = array('#DBNAME#');
$with = array($this->options['database']);
break;
case 'sybase':
$this->options['port'] = (isset($this->options['port'])) ? $this->options['port'] : 1433;
$format = 'mssql:host=#HOST#;port=#PORT#;dbname=#DBNAME#';
$replace = array('#HOST#', '#PORT#', '#DBNAME#');
$with = array($this->options['host'], $this->options['port'], $this->options['database']);
break;
}
// Create the connection string:
$connectionString = str_replace($replace, $with, $format);
try
{
$this->connection = new PDO(
$connectionString,
$this->options['user'],
$this->options['password'],
$this->options['driverOptions']
);
}
catch (PDOException $e)
{
throw new RuntimeException('Could not connect to PDO: ' . $e->getMessage(), 2, $e);
}
}
/**
* Disconnects the database.
*
* @return void
*
* @since 12.1
*/
public function disconnect()
{
foreach ($this->disconnectHandlers as $h)
{
call_user_func_array($h, array( &$this));
}
$this->freeResult();
unset($this->connection);
}
/**
* Method to escape a string for usage in an SQL statement.
*
* Oracle escaping reference:
* http://www.orafaq.com/wiki/SQL_FAQ#How_does_one_escape_special_characters_when_writing_SQL_queries.3F
*
* SQLite escaping notes:
* http://www.sqlite.org/faq.html#q14
*
* Method body is as implemented by the Zend Framework
*
* Note: Using query objects with bound variables is
* preferable to the below.
*
* @param string $text The string to be escaped.
* @param boolean $extra Unused optional parameter to provide extra escaping.
*
* @return string The escaped string.
*
* @since 12.1
*/
public function escape($text, $extra = false)
{
if (is_int($text) || is_float($text))
{
return $text;
}
$text = str_replace("'", "''", $text);
return addcslashes($text, "\000\n\r\\\032");
}
/**
* Execute the SQL statement.
*
* @return mixed A database cursor resource on success, boolean false on failure.
*
* @since 12.1
* @throws RuntimeException
* @throws Exception
*/
public function execute()
{
$this->connect();
if (!is_object($this->connection))
{
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
// Take a local copy so that we don't modify the original query and cause issues later
$query = $this->replacePrefix((string) $this->sql);
if (!($this->sql instanceof F0FDatabaseQuery) && ($this->limit > 0 || $this->offset > 0))
{
// @TODO
$query .= ' LIMIT ' . $this->offset . ', ' . $this->limit;
}
// Increment the query counter.
$this->count++;
// Reset the error values.
$this->errorNum = 0;
$this->errorMsg = '';
// If debugging is enabled then let's log the query.
if ($this->debug)
{
// Add the query to the object queue.
$this->log[] = $query;
if (class_exists('JLog'))
{
JLog::add($query, JLog::DEBUG, 'databasequery');
}
$this->timings[] = microtime(true);
}
// Execute the query.
$this->executed = false;
if ($this->prepared instanceof PDOStatement)
{
// Bind the variables:
if ($this->sql instanceof F0FDatabaseQueryPreparable)
{
$bounded = $this->sql->getBounded();
foreach ($bounded as $key => $obj)
{
$this->prepared->bindParam($key, $obj->value, $obj->dataType, $obj->length, $obj->driverOptions);
}
}
$this->executed = $this->prepared->execute();
}
if ($this->debug)
{
$this->timings[] = microtime(true);
if (defined('DEBUG_BACKTRACE_IGNORE_ARGS'))
{
$this->callStacks[] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
}
else
{
$this->callStacks[] = debug_backtrace();
}
}
// If an error occurred handle it.
if (!$this->executed)
{
// Get the error number and message before we execute any more queries.
$errorNum = $this->getErrorNumber();
$errorMsg = $this->getErrorMessage($query);
// Check if the server was disconnected.
if (!$this->connected())
{
try
{
// Attempt to reconnect.
$this->connection = null;
$this->connect();
}
// If connect fails, ignore that exception and throw the normal exception.
catch (RuntimeException $e)
{
// Get the error number and message.
$this->errorNum = $this->getErrorNumber();
$this->errorMsg = $this->getErrorMessage($query);
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum, $e);
}
// Since we were able to reconnect, run the query again.
return $this->execute();
}
// The server was not disconnected.
else
{
// Get the error number and message from before we tried to reconnect.
$this->errorNum = $errorNum;
$this->errorMsg = $errorMsg;
// Throw the normal query exception.
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
}
return $this->prepared;
}
/**
* Retrieve a PDO database connection attribute
* http://www.php.net/manual/en/pdo.getattribute.php
*
* Usage: $db->getOption(PDO::ATTR_CASE);
*
* @param mixed $key One of the PDO::ATTR_* Constants
*
* @return mixed
*
* @since 12.1
*/
public function getOption($key)
{
$this->connect();
return $this->connection->getAttribute($key);
}
/**
* Get a query to run and verify the database is operational.
*
* @return string The query to check the health of the DB.
*
* @since 12.2
*/
public function getConnectedQuery()
{
return 'SELECT 1';
}
/**
* Sets an attribute on the PDO database handle.
* http://www.php.net/manual/en/pdo.setattribute.php
*
* Usage: $db->setOption(PDO::ATTR_CASE, PDO::CASE_UPPER);
*
* @param integer $key One of the PDO::ATTR_* Constants
* @param mixed $value One of the associated PDO Constants
* related to the particular attribute
* key.
*
* @return boolean
*
* @since 12.1
*/
public function setOption($key, $value)
{
$this->connect();
return $this->connection->setAttribute($key, $value);
}
/**
* Test to see if the PDO extension is available.
* Override as needed to check for specific PDO Drivers.
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function isSupported()
{
return defined('PDO::ATTR_DRIVER_NAME');
}
/**
* Determines if the connection to the server is active.
*
* @return boolean True if connected to the database engine.
*
* @since 12.1
*/
public function connected()
{
// Flag to prevent recursion into this function.
static $checkingConnected = false;
if ($checkingConnected)
{
// Reset this flag and throw an exception.
$checkingConnected = true;
die('Recursion trying to check if connected.');
}
// Backup the query state.
$query = $this->sql;
$limit = $this->limit;
$offset = $this->offset;
$prepared = $this->prepared;
try
{
// Set the checking connection flag.
$checkingConnected = true;
// Run a simple query to check the connection.
$this->setQuery($this->getConnectedQuery());
$status = (bool) $this->loadResult();
}
// If we catch an exception here, we must not be connected.
catch (Exception $e)
{
$status = false;
}
// Restore the query state.
$this->sql = $query;
$this->limit = $limit;
$this->offset = $offset;
$this->prepared = $prepared;
$checkingConnected = false;
return $status;
}
/**
* Get the number of affected rows for the previous executed SQL statement.
* Only applicable for DELETE, INSERT, or UPDATE statements.
*
* @return integer The number of affected rows.
*
* @since 12.1
*/
public function getAffectedRows()
{
$this->connect();
if ($this->prepared instanceof PDOStatement)
{
return $this->prepared->rowCount();
}
else
{
return 0;
}
}
/**
* Get the number of returned rows for the previous executed SQL statement.
* Only applicable for DELETE, INSERT, or UPDATE statements.
*
* @param resource $cursor An optional database cursor resource to extract the row count from.
*
* @return integer The number of returned rows.
*
* @since 12.1
*/
public function getNumRows($cursor = null)
{
$this->connect();
if ($cursor instanceof PDOStatement)
{
return $cursor->rowCount();
}
elseif ($this->prepared instanceof PDOStatement)
{
return $this->prepared->rowCount();
}
else
{
return 0;
}
}
/**
* Method to get the auto-incremented value from the last INSERT statement.
*
* @return string The value of the auto-increment field from the last inserted row.
*
* @since 12.1
*/
public function insertid()
{
$this->connect();
// Error suppress this to prevent PDO warning us that the driver doesn't support this operation.
return @$this->connection->lastInsertId();
}
/**
* Select a database for use.
*
* @param string $database The name of the database to select for use.
*
* @return boolean True if the database was successfully selected.
*
* @since 12.1
* @throws RuntimeException
*/
public function select($database)
{
$this->connect();
return true;
}
/**
* Sets the SQL statement string for later execution.
*
* @param mixed $query The SQL statement to set either as a F0FDatabaseQuery object or a string.
* @param integer $offset The affected row offset to set.
* @param integer $limit The maximum affected rows to set.
* @param array $driverOptions The optional PDO driver options.
*
* @return F0FDatabaseDriver This object to support method chaining.
*
* @since 12.1
*/
public function setQuery($query, $offset = null, $limit = null, $driverOptions = array())
{
$this->connect();
$this->freeResult();
if (is_string($query))
{
// Allows taking advantage of bound variables in a direct query:
$query = $this->getQuery(true)->setQuery($query);
}
if ($query instanceof F0FDatabaseQueryLimitable && !is_null($offset) && !is_null($limit))
{
$query = $query->processLimit($query, $limit, $offset);
}
// Create a stringified version of the query (with prefixes replaced):
$sql = $this->replacePrefix((string) $query);
// Use the stringified version in the prepare call:
$this->prepared = $this->connection->prepare($sql, $driverOptions);
// Store reference to the original F0FDatabaseQuery instance within the class.
// This is important since binding variables depends on it within execute():
parent::setQuery($query, $offset, $limit);
return $this;
}
/**
* Set the connection to use UTF-8 character encoding.
*
* @return boolean True on success.
*
* @since 12.1
*/
public function setUtf()
{
return false;
}
/**
* Method to commit a transaction.
*
* @param boolean $toSavepoint If true, commit to the last savepoint.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionCommit($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth == 1)
{
$this->connection->commit();
}
$this->transactionDepth--;
}
/**
* Method to roll back a transaction.
*
* @param boolean $toSavepoint If true, rollback to the last savepoint.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionRollback($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth == 1)
{
$this->connection->rollBack();
}
$this->transactionDepth--;
}
/**
* Method to initialize a transaction.
*
* @param boolean $asSavepoint If true and a transaction is already active, a savepoint will be created.
*
* @return void
*
* @since 12.1
* @throws RuntimeException
*/
public function transactionStart($asSavepoint = false)
{
$this->connect();
if (!$asSavepoint || !$this->transactionDepth)
{
$this->connection->beginTransaction();
}
$this->transactionDepth++;
}
/**
* Method to fetch a row from the result set cursor as an array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchArray($cursor = null)
{
if (!empty($cursor) && $cursor instanceof PDOStatement)
{
return $cursor->fetch(PDO::FETCH_NUM);
}
if ($this->prepared instanceof PDOStatement)
{
return $this->prepared->fetch(PDO::FETCH_NUM);
}
}
/**
* Method to fetch a row from the result set cursor as an associative array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchAssoc($cursor = null)
{
if (!empty($cursor) && $cursor instanceof PDOStatement)
{
return $cursor->fetch(PDO::FETCH_ASSOC);
}
if ($this->prepared instanceof PDOStatement)
{
return $this->prepared->fetch(PDO::FETCH_ASSOC);
}
}
/**
* Method to fetch a row from the result set cursor as an object.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
* @param string $class Unused, only necessary so method signature will be the same as parent.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchObject($cursor = null, $class = 'stdClass')
{
if (!empty($cursor) && $cursor instanceof PDOStatement)
{
return $cursor->fetchObject($class);
}
if ($this->prepared instanceof PDOStatement)
{
return $this->prepared->fetchObject($class);
}
}
/**
* Method to free up the memory used for the result set.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return void
*
* @since 12.1
*/
protected function freeResult($cursor = null)
{
$this->executed = false;
if ($cursor instanceof PDOStatement)
{
$cursor->closeCursor();
$cursor = null;
}
if ($this->prepared instanceof PDOStatement)
{
$this->prepared->closeCursor();
$this->prepared = null;
}
}
/**
* Method to get the next row in the result set from the database query as an object.
*
* @param string $class The class name to use for the returned row object.
*
* @return mixed The result of the query as an array, false if there are no more rows.
*
* @since 12.1
* @throws RuntimeException
* @deprecated 4.0 (CMS) Use getIterator() instead
*/
public function loadNextObject($class = 'stdClass')
{
if (class_exists('JLog'))
{
JLog::add(__METHOD__ . '() is deprecated. Use F0FDatabaseDriver::getIterator() instead.', JLog::WARNING, 'deprecated');
}
$this->connect();
// Execute the query and get the result set cursor.
if (!$this->executed)
{
if (!($this->execute()))
{
return $this->errorNum ? null : false;
}
}
// Get the next row from the result set as an object of type $class.
if ($row = $this->fetchObject(null, $class))
{
return $row;
}
// Free up system resources and return.
$this->freeResult();
return false;
}
/**
* Method to get the next row in the result set from the database query as an array.
*
* @return mixed The result of the query as an array, false if there are no more rows.
*
* @since 12.1
* @throws RuntimeException
*/
public function loadNextAssoc()
{
$this->connect();
// Execute the query and get the result set cursor.
if (!$this->executed)
{
if (!($this->execute()))
{
return $this->errorNum ? null : false;
}
}
// Get the next row from the result set as an object of type $class.
if ($row = $this->fetchAssoc())
{
return $row;
}
// Free up system resources and return.
$this->freeResult();
return false;
}
/**
* Method to get the next row in the result set from the database query as an array.
*
* @return mixed The result of the query as an array, false if there are no more rows.
*
* @since 12.1
* @throws RuntimeException
* @deprecated 4.0 (CMS) Use getIterator() instead
*/
public function loadNextRow()
{
if (class_exists('JLog'))
{
JLog::add(__METHOD__ . '() is deprecated. Use F0FDatabaseDriver::getIterator() instead.', JLog::WARNING, 'deprecated');
}
$this->connect();
// Execute the query and get the result set cursor.
if (!$this->executed)
{
if (!($this->execute()))
{
return $this->errorNum ? null : false;
}
}
// Get the next row from the result set as an object of type $class.
if ($row = $this->fetchArray())
{
return $row;
}
// Free up system resources and return.
$this->freeResult();
return false;
}
/**
* PDO does not support serialize
*
* @return array
*
* @since 12.3
*/
public function __sleep()
{
$serializedProperties = array();
$reflect = new ReflectionClass($this);
// Get properties of the current class
$properties = $reflect->getProperties();
foreach ($properties as $property)
{
// Do not serialize properties that are PDO
if ($property->isStatic() == false && !($this->{$property->name} instanceof PDO))
{
array_push($serializedProperties, $property->name);
}
}
return $serializedProperties;
}
/**
* Wake up after serialization
*
* @return array
*
* @since 12.3
*/
public function __wakeup()
{
// Get connection back
$this->__construct($this->options);
}
/**
* Return the actual SQL Error number
*
* @return integer The SQL Error number
*
* @since 3.4.6
*/
protected function getErrorNumber()
{
return (int) $this->connection->errorCode();
}
/**
* Return the actual SQL Error message
*
* @param string $query The SQL Query that fails
*
* @return string The SQL Error message
*
* @since 3.4.6
*/
protected function getErrorMessage($query)
{
// Note we ignoring $query here as it not used in the original code.
// The SQL Error Information
$errorInfo = implode(", ", $this->connection->errorInfo());
// Replace the Databaseprefix with `#__` if we are not in Debug
if (!$this->debug)
{
$errorInfo = str_replace($this->tablePrefix, '#__', $errorInfo);
}
return 'SQL: ' . $errorInfo;
}
}
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mysqli.phpnu &1i� <?php
/**
* @package FrameworkOnFramework
* @subpackage database
* @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* This file is adapted from the Joomla! Platform. It is used to iterate a database cursor returning F0FTable objects
* instead of plain stdClass objects
*/
// Protect from unauthorized access
defined('F0F_INCLUDED') or die;
/**
* MySQLi database driver
*
* @see http://php.net/manual/en/book.mysqli.php
* @since 12.1
*/
class F0FDatabaseDriverMysqli extends F0FDatabaseDriver
{
/**
* The name of the database driver.
*
* @var string
* @since 12.1
*/
public $name = 'mysqli';
/**
* The type of the database server family supported by this driver.
*
* @var string
* @since CMS 3.5.0
*/
public $serverType = 'mysql';
/**
* @var mysqli The database connection resource.
* @since 11.1
*/
protected $connection;
/**
* The character(s) used to quote SQL statement names such as table names or field names,
* etc. The child classes should define this as necessary. If a single character string the
* same character is used for both sides of the quoted name, else the first character will be
* used for the opening quote and the second for the closing quote.
*
* @var string
* @since 12.2
*/
protected $nameQuote = '`';
/**
* The null or zero representation of a timestamp for the database driver. This should be
* defined in child classes to hold the appropriate value for the engine.
*
* @var string
* @since 12.2
*/
protected $nullDate = '0000-00-00 00:00:00';
/**
* @var string The minimum supported database version.
* @since 12.2
*/
protected static $dbMinimum = '5.0.4';
/**
* Constructor.
*
* @param array $options List of options used to configure the connection
*
* @since 12.1
*/
public function __construct($options)
{
// Get some basic values from the options.
$options['host'] = (isset($options['host'])) ? $options['host'] : 'localhost';
$options['user'] = (isset($options['user'])) ? $options['user'] : 'root';
$options['password'] = (isset($options['password'])) ? $options['password'] : '';
$options['database'] = (isset($options['database'])) ? $options['database'] : '';
$options['select'] = (isset($options['select'])) ? (bool) $options['select'] : true;
$options['port'] = null;
$options['socket'] = null;
// Finalize initialisation.
parent::__construct($options);
}
/**
* Destructor.
*
* @since 12.1
*/
public function __destruct()
{
$this->disconnect();
}
/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 12.1
* @throws RuntimeException
*/
public function connect()
{
if ($this->connection)
{
return;
}
/*
* Unlike mysql_connect(), mysqli_connect() takes the port and socket as separate arguments. Therefore, we
* have to extract them from the host string.
*/
$port = isset($this->options['port']) ? $this->options['port'] : 3306;
$regex = '/^(?P<host>((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))(:(?P<port>.+))?$/';
if (preg_match($regex, $this->options['host'], $matches))
{
// It's an IPv4 address with ot without port
$this->options['host'] = $matches['host'];
if (!empty($matches['port']))
{
$port = $matches['port'];
}
}
elseif (preg_match('/^(?P<host>\[.*\])(:(?P<port>.+))?$/', $this->options['host'], $matches))
{
// We assume square-bracketed IPv6 address with or without port, e.g. [fe80:102::2%eth1]:3306
$this->options['host'] = $matches['host'];
if (!empty($matches['port']))
{
$port = $matches['port'];
}
}
elseif (preg_match('/^(?P<host>(\w+:\/{2,3})?[a-z0-9\.\-]+)(:(?P<port>[^:]+))?$/i', $this->options['host'], $matches))
{
// Named host (e.g domain.com or localhost) with ot without port
$this->options['host'] = $matches['host'];
if (!empty($matches['port']))
{
$port = $matches['port'];
}
}
elseif (preg_match('/^:(?P<port>[^:]+)$/', $this->options['host'], $matches))
{
// Empty host, just port, e.g. ':3306'
$this->options['host'] = 'localhost';
$port = $matches['port'];
}
// ... else we assume normal (naked) IPv6 address, so host and port stay as they are or default
// Get the port number or socket name
if (is_numeric($port))
{
$this->options['port'] = (int) $port;
}
else
{
$this->options['socket'] = $port;
}
// Make sure the MySQLi extension for PHP is installed and enabled.
if (!function_exists('mysqli_connect'))
{
throw new RuntimeException('The MySQL adapter mysqli is not available');
}
$this->connection = @mysqli_connect(
$this->options['host'], $this->options['user'], $this->options['password'], null, $this->options['port'], $this->options['socket']
);
// Attempt to connect to the server.
if (!$this->connection)
{
throw new RuntimeException('Could not connect to MySQL.');
}
// Set sql_mode to non_strict mode
mysqli_query($this->connection, "SET @@SESSION.sql_mode = '';");
// If auto-select is enabled select the given database.
if ($this->options['select'] && !empty($this->options['database']))
{
$this->select($this->options['database']);
}
// Pre-populate the UTF-8 Multibyte compatibility flag based on server version
$this->utf8mb4 = $this->serverClaimsUtf8mb4Support();
// Set the character set (needed for MySQL 4.1.2+).
$this->utf = $this->setUtf();
// Turn MySQL profiling ON in debug mode:
if ($this->debug && $this->hasProfiling())
{
mysqli_query($this->connection, "SET profiling_history_size = 100;");
mysqli_query($this->connection, "SET profiling = 1;");
}
}
/**
* Disconnects the database.
*
* @return void
*
* @since 12.1
*/
public function disconnect()
{
// Close the connection.
if ($this->connection)
{
foreach ($this->disconnectHandlers as $h)
{
call_user_func_array($h, array( &$this));
}
mysqli_close($this->connection);
}
$this->connection = null;
}
/**
* Method to escape a string for usage in an SQL statement.
*
* @param string $text The string to be escaped.
* @param boolean $extra Optional parameter to provide extra escaping.
*
* @return string The escaped string.
*
* @since 12.1
*/
public function escape($text, $extra = false)
{
$this->connect();
$result = mysqli_real_escape_string($this->getConnection(), $text);
if ($extra)
{
$result = addcslashes($result, '%_');
}
return $result;
}
/**
* Test to see if the MySQL connector is available.
*
* @return boolean True on success, false otherwise.
*
* @since 12.1
*/
public static function isSupported()
{
return (function_exists('mysqli_connect'));
}
/**
* Determines if the connection to the server is active.
*
* @return boolean True if connected to the database engine.
*
* @since 12.1
*/
public function connected()
{
if (is_object($this->connection))
{
return mysqli_ping($this->connection);
}
return false;
}
/**
* Drops a table from the database.
*
* @param string $tableName The name of the database table to drop.
* @param boolean $ifExists Optionally specify that the table must exist before it is dropped.
*
* @return F0FDatabaseDriverMysqli Returns this object to support chaining.
*
* @since 12.2
* @throws RuntimeException
*/
public function dropTable($tableName, $ifExists = true)
{
$this->connect();
$query = $this->getQuery(true);
$this->setQuery('DROP TABLE ' . ($ifExists ? 'IF EXISTS ' : '') . $query->quoteName($tableName));
$this->execute();
return $this;
}
/**
* Get the number of affected rows by the last INSERT, UPDATE, REPLACE or DELETE for the previous executed SQL statement.
*
* @return integer The number of affected rows.
*
* @since 12.1
*/
public function getAffectedRows()
{
$this->connect();
return mysqli_affected_rows($this->connection);
}
/**
* Method to get the database collation.
*
* @return mixed The collation in use by the database (string) or boolean false if not supported.
*
* @since 12.2
* @throws RuntimeException
*/
public function getCollation()
{
$this->connect();
// Attempt to get the database collation by accessing the server system variable.
$this->setQuery('SHOW VARIABLES LIKE "collation_database"');
$result = $this->loadObject();
if (property_exists($result, 'Value'))
{
return $result->Value;
}
else
{
return false;
}
}
/**
* Method to get the database connection collation, as reported by the driver. If the connector doesn't support
* reporting this value please return an empty string.
*
* @return string
*/
public function getConnectionCollation()
{
$this->connect();
// Attempt to get the database collation by accessing the server system variable.
$this->setQuery('SHOW VARIABLES LIKE "collation_connection"');
$result = $this->loadObject();
if (property_exists($result, 'Value'))
{
return $result->Value;
}
else
{
return false;
}
}
/**
* Get the number of returned rows for the previous executed SQL statement.
* This command is only valid for statements like SELECT or SHOW that return an actual result set.
* To retrieve the number of rows affected by a INSERT, UPDATE, REPLACE or DELETE query, use getAffectedRows().
*
* @param resource $cursor An optional database cursor resource to extract the row count from.
*
* @return integer The number of returned rows.
*
* @since 12.1
*/
public function getNumRows($cursor = null)
{
return mysqli_num_rows($cursor ? $cursor : $this->cursor);
}
/**
* Shows the table CREATE statement that creates the given tables.
*
* @param mixed $tables A table name or a list of table names.
*
* @return array A list of the create SQL for the tables.
*
* @since 12.1
* @throws RuntimeException
*/
public function getTableCreate($tables)
{
$this->connect();
$result = array();
// Sanitize input to an array and iterate over the list.
settype($tables, 'array');
foreach ($tables as $table)
{
// Set the query to get the table CREATE statement.
$this->setQuery('SHOW CREATE table ' . $this->quoteName($this->escape($table)));
$row = $this->loadRow();
// Populate the result array based on the create statements.
$result[$table] = $row[1];
}
return $result;
}
/**
* Retrieves field information about a given table.
*
* @param string $table The name of the database table.
* @param boolean $typeOnly True to only return field types.
*
* @return array An array of fields for the database table.
*
* @since 12.2
* @throws RuntimeException
*/
public function getTableColumns($table, $typeOnly = true)
{
$this->connect();
$result = array();
// Set the query to get the table fields statement.
$this->setQuery('SHOW FULL COLUMNS FROM ' . $this->quoteName($this->escape($table)));
$fields = $this->loadObjectList();
// If we only want the type as the value add just that to the list.
if ($typeOnly)
{
foreach ($fields as $field)
{
$result[$field->Field] = preg_replace("/[(0-9)]/", '', $field->Type);
}
}
// If we want the whole field data object add that to the list.
else
{
foreach ($fields as $field)
{
$result[$field->Field] = $field;
}
}
return $result;
}
/**
* Get the details list of keys for a table.
*
* @param string $table The name of the table.
*
* @return array An array of the column specification for the table.
*
* @since 12.2
* @throws RuntimeException
*/
public function getTableKeys($table)
{
$this->connect();
// Get the details columns information.
$this->setQuery('SHOW KEYS FROM ' . $this->quoteName($table));
$keys = $this->loadObjectList();
return $keys;
}
/**
* Method to get an array of all tables in the database.
*
* @return array An array of all the tables in the database.
*
* @since 12.2
* @throws RuntimeException
*/
public function getTableList()
{
$this->connect();
// Set the query to get the tables statement.
$this->setQuery('SHOW TABLES');
$tables = $this->loadColumn();
return $tables;
}
/**
* Get the version of the database connector.
*
* @return string The database connector version.
*
* @since 12.1
*/
public function getVersion()
{
$this->connect();
return mysqli_get_server_info($this->connection);
}
/**
* Method to get the auto-incremented value from the last INSERT statement.
*
* @return mixed The value of the auto-increment field from the last inserted row.
* If the value is greater than maximal int value, it will return a string.
*
* @since 12.1
*/
public function insertid()
{
$this->connect();
return mysqli_insert_id($this->connection);
}
/**
* Locks a table in the database.
*
* @param string $table The name of the table to unlock.
*
* @return F0FDatabaseDriverMysqli Returns this object to support chaining.
*
* @since 12.2
* @throws RuntimeException
*/
public function lockTable($table)
{
$this->setQuery('LOCK TABLES ' . $this->quoteName($table) . ' WRITE')->execute();
return $this;
}
/**
* Execute the SQL statement.
*
* @return mixed A database cursor resource on success, boolean false on failure.
*
* @since 12.1
* @throws RuntimeException
*/
public function execute()
{
$this->connect();
if (!is_object($this->connection))
{
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
// Take a local copy so that we don't modify the original query and cause issues later
$query = $this->replacePrefix((string) $this->sql);
if (!($this->sql instanceof F0FDatabaseQuery) && ($this->limit > 0 || $this->offset > 0))
{
$query .= ' LIMIT ' . $this->offset . ', ' . $this->limit;
}
// Increment the query counter.
$this->count++;
// Reset the error values.
$this->errorNum = 0;
$this->errorMsg = '';
$memoryBefore = null;
// If debugging is enabled then let's log the query.
if ($this->debug)
{
// Add the query to the object queue.
$this->log[] = $query;
if (class_exists('JLog'))
{
JLog::add($query, JLog::DEBUG, 'databasequery');
}
$this->timings[] = microtime(true);
if (is_object($this->cursor))
{
// Avoid warning if result already freed by third-party library
@$this->freeResult();
}
$memoryBefore = memory_get_usage();
}
// Execute the query. Error suppression is used here to prevent warnings/notices that the connection has been lost.
$this->cursor = @mysqli_query($this->connection, $query);
if ($this->debug)
{
$this->timings[] = microtime(true);
if (defined('DEBUG_BACKTRACE_IGNORE_ARGS'))
{
$this->callStacks[] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
}
else
{
$this->callStacks[] = debug_backtrace();
}
$this->callStacks[count($this->callStacks) - 1][0]['memory'] = array(
$memoryBefore,
memory_get_usage(),
is_object($this->cursor) ? $this->getNumRows() : null
);
}
// If an error occurred handle it.
if (!$this->cursor)
{
// Get the error number and message before we execute any more queries.
$this->errorNum = $this->getErrorNumber();
$this->errorMsg = $this->getErrorMessage($query);
// Check if the server was disconnected.
if (!$this->connected())
{
try
{
// Attempt to reconnect.
$this->connection = null;
$this->connect();
}
// If connect fails, ignore that exception and throw the normal exception.
catch (RuntimeException $e)
{
// Get the error number and message.
$this->errorNum = $this->getErrorNumber();
$this->errorMsg = $this->getErrorMessage($query);
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum, $e);
}
// Since we were able to reconnect, run the query again.
return $this->execute();
}
// The server was not disconnected.
else
{
if (class_exists('JLog'))
{
JLog::add(JText::sprintf('JLIB_DATABASE_QUERY_FAILED', $this->errorNum, $this->errorMsg), JLog::ERROR, 'database-error');
}
throw new RuntimeException($this->errorMsg, $this->errorNum);
}
}
return $this->cursor;
}
/**
* Renames a table in the database.
*
* @param string $oldTable The name of the table to be renamed
* @param string $newTable The new name for the table.
* @param string $backup Not used by MySQL.
* @param string $prefix Not used by MySQL.
*
* @return F0FDatabaseDriverMysqli Returns this object to support chaining.
*
* @since 12.2
* @throws RuntimeException
*/
public function renameTable($oldTable, $newTable, $backup = null, $prefix = null)
{
$this->setQuery('RENAME TABLE ' . $oldTable . ' TO ' . $newTable)->execute();
return $this;
}
/**
* Select a database for use.
*
* @param string $database The name of the database to select for use.
*
* @return boolean True if the database was successfully selected.
*
* @since 12.1
* @throws RuntimeException
*/
public function select($database)
{
$this->connect();
if (!$database)
{
return false;
}
if (!mysqli_select_db($this->connection, $database))
{
throw new RuntimeException('Could not connect to database.');
}
return true;
}
/**
* Set the connection to use UTF-8 character encoding.
*
* @return boolean True on success.
*
* @since 12.1
*/
public function setUtf()
{
// If UTF is not supported return false immediately
if (!$this->utf)
{
return false;
}
// Make sure we're connected to the server
$this->connect();
// Which charset should I use, plain utf8 or multibyte utf8mb4?
$charset = $this->utf8mb4 ? 'utf8mb4' : 'utf8';
$result = @$this->connection->set_charset($charset);
/**
* If I could not set the utf8mb4 charset then the server doesn't support utf8mb4 despite claiming otherwise.
* This happens on old MySQL server versions (less than 5.5.3) using the mysqlnd PHP driver. Since mysqlnd
* masks the server version and reports only its own we can not be sure if the server actually does support
* UTF-8 Multibyte (i.e. it's MySQL 5.5.3 or later). Since the utf8mb4 charset is undefined in this case we
* catch the error and determine that utf8mb4 is not supported!
*/
if (!$result && $this->utf8mb4)
{
$this->utf8mb4 = false;
$result = @$this->connection->set_charset('utf8');
}
return $result;
}
/**
* Method to commit a transaction.
*
* @param boolean $toSavepoint If true, commit to the last savepoint.
*
* @return void
*
* @since 12.2
* @throws RuntimeException
*/
public function transactionCommit($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
if ($this->setQuery('COMMIT')->execute())
{
$this->transactionDepth = 0;
}
return;
}
$this->transactionDepth--;
}
/**
* Method to roll back a transaction.
*
* @param boolean $toSavepoint If true, rollback to the last savepoint.
*
* @return void
*
* @since 12.2
* @throws RuntimeException
*/
public function transactionRollback($toSavepoint = false)
{
$this->connect();
if (!$toSavepoint || $this->transactionDepth <= 1)
{
if ($this->setQuery('ROLLBACK')->execute())
{
$this->transactionDepth = 0;
}
return;
}
$savepoint = 'SP_' . ($this->transactionDepth - 1);
$this->setQuery('ROLLBACK TO SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth--;
}
}
/**
* Method to initialize a transaction.
*
* @param boolean $asSavepoint If true and a transaction is already active, a savepoint will be created.
*
* @return void
*
* @since 12.2
* @throws RuntimeException
*/
public function transactionStart($asSavepoint = false)
{
$this->connect();
if (!$asSavepoint || !$this->transactionDepth)
{
if ($this->setQuery('START TRANSACTION')->execute())
{
$this->transactionDepth = 1;
}
return;
}
$savepoint = 'SP_' . $this->transactionDepth;
$this->setQuery('SAVEPOINT ' . $this->quoteName($savepoint));
if ($this->execute())
{
$this->transactionDepth++;
}
}
/**
* Method to fetch a row from the result set cursor as an array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchArray($cursor = null)
{
return mysqli_fetch_row($cursor ? $cursor : $this->cursor);
}
/**
* Method to fetch a row from the result set cursor as an associative array.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchAssoc($cursor = null)
{
return mysqli_fetch_assoc($cursor ? $cursor : $this->cursor);
}
/**
* Method to fetch a row from the result set cursor as an object.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
* @param string $class The class name to use for the returned row object.
*
* @return mixed Either the next row from the result set or false if there are no more rows.
*
* @since 12.1
*/
protected function fetchObject($cursor = null, $class = 'stdClass')
{
return mysqli_fetch_object($cursor ? $cursor : $this->cursor, $class);
}
/**
* Method to free up the memory used for the result set.
*
* @param mixed $cursor The optional result set cursor from which to fetch the row.
*
* @return void
*
* @since 12.1
*/
protected function freeResult($cursor = null)
{
mysqli_free_result($cursor ? $cursor : $this->cursor);
if ((! $cursor) || ($cursor === $this->cursor))
{
$this->cursor = null;
}
}
/**
* Unlocks tables in the database.
*
* @return F0FDatabaseDriverMysqli Returns this object to support chaining.
*
* @since 12.1
* @throws RuntimeException
*/
public function unlockTables()
{
$this->setQuery('UNLOCK TABLES')->execute();
return $this;
}
/**
* Internal function to check if profiling is available
*
* @return boolean
*
* @since 3.1.3
*/
private function hasProfiling()
{
try
{
$res = mysqli_query($this->connection, "SHOW VARIABLES LIKE 'have_profiling'");
$row = mysqli_fetch_assoc($res);
return isset($row);
}
catch (Exception $e)
{
return false;
}
}
/**
* Does the database server claim to have support for UTF-8 Multibyte (utf8mb4) collation?
*
* libmysql supports utf8mb4 since 5.5.3 (same version as the MySQL server). mysqlnd supports utf8mb4 since 5.0.9.
*
* @return boolean
*
* @since CMS 3.5.0
*/
private function serverClaimsUtf8mb4Support()
{
$client_version = mysqli_get_client_info();
if (strpos($client_version, 'mysqlnd') !== false)
{
$client_version = preg_replace('/^\D+([\d.]+).*/', '$1', $client_version);
return version_compare($client_version, '5.0.9', '>=');
}
else
{
return version_compare($client_version, '5.5.3', '>=');
}
}
/**
* Return the actual SQL Error number
*
* @return integer The SQL Error number
*
* @since 3.4.6
*/
protected function getErrorNumber()
{
return (int) mysqli_errno($this->connection);
}
/**
* Return the actual SQL Error message
*
* @param string $query The SQL Query that fails
*
* @return string The SQL Error message
*
* @since 3.4.6
*/
protected function getErrorMessage($query)
{
$errorMessage = (string) mysqli_error($this->connection);
// Replace the Databaseprefix with `#__` if we are not in Debug
if (!$this->debug)
{
$errorMessage = str_replace($this->tablePrefix, '#__', $errorMessage);
$query = str_replace($this->tablePrefix, '#__', $query);
}
return $errorMessage . ' SQL=' . $query;
}
}
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