custom DBConnector system

git-svn-id: svn+ssh://code.netmonsters.ru/svn/majestic/trunk@75 4cb57b5f-5bbd-dd11-951b-001d605cbbc5

classes/DBConnector.class.php

@@ -3,38 +3,25 @@
  * Класс базы данных.
  * Возвращает идентификатор соединения
  *
- * @copyright 
- * @link 
+ * @copyright
+ * @link
  * @package Majestic
  * @subpackage DB
- * @since 
+ * @since
  * @version SVN: $Id$
  * @filesource $URL$
  */
 class DBConnector
 {
-    private $handlers = array();
-    static private $instance = null;
+    static private $handlers = array();
     static public $queries   = array();
-    
+
     /**
      * Запрещаем new и клонирование
      */
     private function __construct(){}
-    
+
     private function __clone(){}
-    
-    /**
-     * Единственный способ инициализации. Singletone как-никак.
-     * @return DBConnector
-     */
-    static public function getInstance()
-    {
-        if (self::$instance == null) {
-            self::$instance = new DBConnector();
-        }
-        return self::$instance;
-    }
 
     /**
      * Получение соединения.
@@ -43,25 +30,82 @@ class DBConnector
      * @param array $db_settings - массив настроек
      * @return resource - идентификатор соединения
      */
-    public function getConnect($db_settings)
+    static public function getConnect($db_settings)
     {
-        $handler_name = $this->getConnectionName($db_settings);
+        $handler_name = self::getConnectionName($db_settings);
 
-        if (isset($this->handlers[$handler_name])) {
-            return $this->handlers[$handler_name];
+        if (isset(self::$handlers[$handler_name])) {
+            return self::$handlers[$handler_name];
         }
 
         if (!$handler = mysqli_connect($db_settings['host'], $db_settings['user'], $db_settings['password'], $db_settings['database'])) {
             throw new MJException('Can\'t connect to DB '.mysqli_connect_error(), 2);
         }
 
-        mysqli_query($handler, "SET NAMES 'utf8'"); //cheat!!!
-        return $this->handlers[$handler_name] = $handler;
+        self::query($handler, "SET NAMES 'utf8'"); //cheat!!!
+        return self::$handlers[$handler_name] = $handler;
     }
 
-    protected function getConnectionName($db_settings)
+    static protected function getConnectionName($db_settings)
     {
         return $db_settings['host'] . '-' . $db_settings['database'];
     }
+
+/////////
+
+    static public function query($handler, $sql)
+    {
+        return mysqli_query($handler, $sql);
+    }
+
+    static public function escape($handler, $str)
+    {
+        return mysqli_real_escape_string($handler, $str);
+    }
+
+    static public function error($handler)
+    {
+        return mysqli_error($handler);
+    }
+
+    static public function free($result)
+    {
+        return mysqli_free_result($result);
+    }
+
+    static public function fetchObject($result, $class_name = false)
+    {
+        return $class_name ? mysqli_fetch_object($result, $class_name) : mysqli_fetch_object($result);
+    }
+
+    static public function numRows($result)
+    {
+        return mysqli_num_rows($result);
+    }
+
+    static public function affectedRows($handler)
+    {
+        return mysqli_affected_rows($handler);
+    }
+
+    static public function getId($handler)
+    {
+        return mysqli_insert_id($handler);
+    }
+
+    static public function autocommit($handler, $switch)
+    {
+        return mysqli_autocommit($handler, (bool) $switch);
+    }
+
+    static public function commit($handler)
+    {
+        return mysqli_commit($handler);
+    }
+
+    static public function rollback($handler)
+    {
+        return mysqli_rollback($handler);
+    }
 }
 ?>