. */ Doctrine::autoload("Doctrine_Connection_Common"); /** * Doctrine_Connection_Pgsql * * @package Doctrine * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * @author Konsta Vesterinen * @author Lukas Smith (PEAR MDB2 library) * @version $Revision$ * @category Object Relational Mapping * @link www.phpdoctrine.com * @since 1.0 */ class Doctrine_Connection_Pgsql extends Doctrine_Connection_Common { /** * @var string $driverName the name of this connection driver */ protected $driverName = 'Pgsql'; /** * the constructor * * @param Doctrine_Manager $manager * @param PDO $pdo database handle */ public function __construct(Doctrine_Manager $manager, $adapter) { // initialize all driver options $this->supported = array( 'sequences' => true, 'indexes' => true, 'affected_rows' => true, 'summary_functions' => true, 'order_by_text' => true, 'transactions' => true, 'savepoints' => true, 'current_id' => true, 'limit_queries' => true, 'LOBs' => true, 'replace' => 'emulated', 'sub_selects' => true, 'auto_increment' => 'emulated', 'primary_key' => true, 'result_introspection' => true, 'prepared_statements' => true, 'identifier_quoting' => true, 'pattern_escaping' => true, ); parent::__construct($manager, $adapter); } /** * Set the charset on the current connection * * @param string charset * * @return void */ public function setCharset($charset) { $query = 'SET NAMES '.$this->dbh->quote($charset); $this->dbh->query($query); } /** * returns the next value in the given sequence * @param string $sequence * @return integer */ public function nextId($sequence) { $stmt = $this->dbh->query("SELECT NEXTVAL('$sequence')"); $data = $stmt->fetch(PDO::FETCH_NUM); return $data[0]; } /** * Returns the current id of a sequence * * @param string $seq_name name of the sequence * @return mixed MDB2 Error Object or id * @access public */ function currId($sequence) { $stmt = $this->dbh->query('SELECT last_value FROM '.$sequence); $data = $stmt->fetch(PDO::FETCH_NUM); return $data[0]; } /** * Changes a query string for various DBMS specific reasons * * @param string $query query to modify * @param integer $limit limit the number of rows * @param integer $offset start reading from given offset * @param boolean $isManip if the query is a DML query * @return string modified query */ public function modifyLimitQuery($query, $limit = false, $offset = false, $isManip = false) { if ($limit > 0) { $query = rtrim($query); if (substr($query, -1) == ';') { $query = substr($query, 0, -1); } if ($isManip) { $manip = preg_replace('/^(DELETE FROM|UPDATE).*$/', '\\1', $query); $from = $match[2]; $where = $match[3]; $query = $manip . ' ' . $from . ' WHERE ctid=(SELECT ctid FROM ' . $from . ' ' . $where . ' LIMIT ' . $limit . ')'; } else { if($limit !== false) { $query .= ' LIMIT ' . $limit; } if($offset !== false) { $query .= ' OFFSET ' . $offset; } } } return $query; } /** * return version information about the server * * @param string $native determines if the raw version string should be returned * @return array|string an array or string with version information */ public function getServerVersion($native = false) { $query = 'SHOW SERVER_VERSION'; $serverInfo = $this->fetchOne($query); if( ! $native) { $tmp = explode('.', $server_info, 3); if(empty($tmp[2]) && isset($tmp[1]) && preg_match('/(\d+)(.*)/', $tmp[1], $tmp2)) { $serverInfo = array( 'major' => $tmp[0], 'minor' => $tmp2[1], 'patch' => null, 'extra' => $tmp2[2], 'native' => $serverInfo, ); } else { $serverInfo = array( 'major' => isset($tmp[0]) ? $tmp[0] : null, 'minor' => isset($tmp[1]) ? $tmp[1] : null, 'patch' => isset($tmp[2]) ? $tmp[2] : null, 'extra' => null, 'native' => $serverInfo, ); } } return $serverInfo; } }