Multi databases support, #12

git-svn-id: svn+ssh://code.netmonsters.ru/svn/majestic/branches/evo@113 4cb57b5f-5bbd-dd11-951b-001d605cbbc5

Config.php

@@ -0,0 +1,67 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage Model
+ * @since 2010-02-17
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class Config extends ArrayObject
+{
+    
+    private static $_instance = null;
+    
+    
+    public function __construct($config = array())
+    {
+        parent::__construct($config, ArrayObject::ARRAY_AS_PROPS);
+    }
+    
+    /**
+     * @return Config
+     */
+    static public function getInstance()
+    {
+        if (is_null(self::$_instance)) {
+            self::$_instance = new Config();
+        }
+        return self::$_instance;
+    }
+    
+    static public function get($name)
+    {
+        $instance = self::getInstance();
+        if (! $instance->offsetExists($name)) {
+            throw new Exception('Configuration variable "' . $name . '" undefined');
+        }
+        return $instance->offsetGet($name);
+    }
+    
+    static public function set($name, $value)
+    {
+        if (is_array($value)) {
+            $value = new ConfigArray($value);
+        }
+        self::getInstance()->offsetSet($name, $value);
+    }
+    
+}
+
+class ConfigArray extends ArrayObject
+{
+    public function __construct($array)
+    {
+        parent::__construct($array, ArrayObject::ARRAY_AS_PROPS);
+    }
+    
+    public function offsetGet($index) 
+    {
+        if (! $this->offsetExists($index)) {
+            throw new Exception('Configuration variable "' . $index . '" undefined');
+        }
+        return parent::offsetGet($index);
+    }
+}