public static Connection::open(array &$connection_options = array())
Opens a PDO connection.
Parameters
array $connection_options: The database connection settings array.
Return value
\PDO A \PDO object.
Overrides Connection::open
File
- core/lib/Drupal/Core/Database/Driver/sqlite/Connection.php, line 92
Class
- Connection
- SQLite implementation of \Drupal\Core\Database\Connection.
Namespace
Drupal\Core\Database\Driver\sqlite
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | public static function open(array &$connection_options = array()) { // Allow PDO options to be overridden. $connection_options += array( 'pdo' => array(), ); $connection_options['pdo'] += array( \PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION, // Convert numeric values to strings when fetching. \PDO::ATTR_STRINGIFY_FETCHES => TRUE, ); $pdo = new \PDO('sqlite:' . $connection_options['database'], '', '', $connection_options['pdo']); // Create functions needed by SQLite. $pdo->sqliteCreateFunction('if', array(__CLASS__, 'sqlFunctionIf')); $pdo->sqliteCreateFunction('greatest', array(__CLASS__, 'sqlFunctionGreatest')); $pdo->sqliteCreateFunction('pow', 'pow', 2); $pdo->sqliteCreateFunction('exp', 'exp', 1); $pdo->sqliteCreateFunction('length', 'strlen', 1); $pdo->sqliteCreateFunction('md5', 'md5', 1); $pdo->sqliteCreateFunction('concat', array(__CLASS__, 'sqlFunctionConcat')); $pdo->sqliteCreateFunction('concat_ws', array(__CLASS__, 'sqlFunctionConcatWs')); $pdo->sqliteCreateFunction('substring', array(__CLASS__, 'sqlFunctionSubstring'), 3); $pdo->sqliteCreateFunction('substring_index', array(__CLASS__, 'sqlFunctionSubstringIndex'), 3); $pdo->sqliteCreateFunction('rand', array(__CLASS__, 'sqlFunctionRand')); $pdo->sqliteCreateFunction('regexp', array(__CLASS__, 'sqlFunctionRegexp')); // SQLite does not support the LIKE BINARY operator, so we overload the // non-standard GLOB operator for case-sensitive matching. Another option // would have been to override another non-standard operator, MATCH, but // that does not support the NOT keyword prefix. $pdo->sqliteCreateFunction('glob', array(__CLASS__, 'sqlFunctionLikeBinary')); // Create a user-space case-insensitive collation with UTF-8 support. $pdo->sqliteCreateCollation('NOCASE_UTF8', array('Drupal\Component\Utility\Unicode', 'strcasecmp')); // Set SQLite init_commands if not already defined. Enable the Write-Ahead // Logging (WAL) for SQLite. See https://www.drupal.org/node/2348137 and $connection_options += array( 'init_commands' => array(), ); $connection_options['init_commands'] += array( 'wal' => "PRAGMA journal_mode=WAL", ); // Execute sqlite init_commands. if (isset($connection_options['init_commands'])) { $pdo->exec(implode('; ', $connection_options['init_commands'])); } return $pdo;} |
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