Re-use the database connection
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1 changed files with 261 additions and 268 deletions
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@ -28,6 +28,9 @@
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* @author Daan Janssens, mentored by Matthew Lagoe
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*
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*/
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$PDOCache = array();
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class DBLayer {
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private $PDO;
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@ -44,8 +47,10 @@ class DBLayer {
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*/
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function __construct($db, $dbn = null)
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{
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if ( $db != "install" ) {
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global $PDOCache;
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if (isset($PDOCache[$db])) {
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$this->PDO = $PDOCache[$db];
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} else {
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global $cfg;
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$dsn = "mysql:";
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$dsn .= "host=" . $cfg['db'][$db]['host'] . ";";
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@ -57,19 +62,8 @@ class DBLayer {
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
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);
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$this->PDO = new PDO($dsn, $cfg['db'][$db]['user'], $cfg['db'][$db]['pass'], $opt);
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} else {
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global $cfg;
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$dsn = "mysql:";
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$dsn .= "host=" . $cfg['db'][$dbn]['host'] . ";";
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$dsn .= "port=" . $cfg['db'][$dbn]['port'] . ";";
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$opt = array(
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PDO :: ATTR_ERRMODE => PDO :: ERRMODE_EXCEPTION,
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PDO :: ATTR_DEFAULT_FETCH_MODE => PDO :: FETCH_ASSOC
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);
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$this -> PDO = new PDO( $dsn, $_POST['Username'], $_POST['Password'], $opt );
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$PDOCache[$db] = $this->PDO;
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}
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}
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/**
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@ -145,8 +139,7 @@ class DBLayer {
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$sth -> execute( $data );
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$this -> PDO -> commit();
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}
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catch( Exception $e )
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{
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catch ( Exception $e ) {
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$this -> PDO -> rollBack();
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throw new Exception( "error selection" );
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return false;
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