FALSE, 'port' => 3306, ); $this->transactionSupport = $connection_options['transactions']; $dsn = 'mysql:host=' . $connection_options['host'] . ';port=' . $connection_options['port'] . ';dbname=' . $connection_options['database']; parent::__construct($dsn, $connection_options['username'], $connection_options['password'], array( // So we don't have to mess around with cursors and unbuffered queries by default. PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => TRUE, // Because MySQL's prepared statements skip the query cache, because it's dumb. PDO::ATTR_EMULATE_PREPARES => TRUE, )); // Force MySQL to use the UTF-8 character set by default. $this->exec('SET NAMES "utf8"'); // Enable MySQL's "strict mode", which removes most of MySQL's // "just be lazy" behaviors that end up causing more trouble than they're worth. $this->exec('SET sql_mode=STRICT_ALL_TABLES'); } public function queryRange($query, Array $args, $from, $count, Array $options) { // Backward compatibility hack, temporary. $query = str_replace(array('%d' , '%f' , '%b' , "'%s'"), '?', $query); return $this->query($query . ' LIMIT ' . $from . ', ' . $count, $args, $options); } public function queryTemporary($query, Array $args, $tablename) { $query = preg_replace('/^SELECT/i', 'CREATE TEMPORARY TABLE ' . $tablename . ' Engine=HEAP SELECT', $this->prefixTables($query)); return $this->query($query, $args, $options); } public function driver() { return 'mysql'; } public function databaseType() { return 'mysql'; } public function supportsTransactions() { return $this->transactionSupport; } public function escapeTable($table) { return preg_replace('/[^A-Za-z0-9_]+/', '', $table); } public function mapConditionOperator($operator) { // We don't want to override any of the defaults. return NULL; } /** * @todo Remove this as soon as db_rewrite_sql() has been exterminated. */ public function distinctField($table, $field, $query) { $field_to_select = 'DISTINCT(' . $table . '.' . $field . ')'; // (?