diff --git a/system/libs/pot/OTS_Base_DAO.php b/system/libs/pot/OTS_Base_DAO.php
index 1ab75e6f..48b1ff35 100644
--- a/system/libs/pot/OTS_Base_DAO.php
+++ b/system/libs/pot/OTS_Base_DAO.php
@@ -15,15 +15,15 @@
 
 /**
  * Basic data access object routines.
- * 
+ *
  * <p>
  * This class defines basic mechanisms for all classes that will represent database accessors. However no coding logic is defined here - only connection handling and PHP core-related stuff to enable variouse operations with objects.
  * </p>
- * 
+ *
  * <p>
  * This class is mostly usefull when you create own extensions for POT code.
  * </p>
- * 
+ *
  * @package POT
  * @version 0.1.0
  */
@@ -31,14 +31,14 @@ abstract class OTS_Base_DAO implements IOTS_DAO
 {
 /**
  * Database connection.
- * 
+ *
  * @var PDO
  */
     protected $db;
 
 /**
  * Sets database connection handler.
- * 
+ *
  * @version 0.1.0
  */
     public function __construct()
@@ -48,11 +48,11 @@ abstract class OTS_Base_DAO implements IOTS_DAO
 
 /**
  * Magic PHP5 method.
- * 
+ *
  * <p>
  * Allows object serialisation.
  * </p>
- * 
+ *
  * @return array List of properties that should be saved.
  */
     public function __sleep()
@@ -62,7 +62,7 @@ abstract class OTS_Base_DAO implements IOTS_DAO
 
 /**
  * Magic PHP5 method.
- * 
+ *
  * <p>
  * Allows object unserialisation.
  * </p>
@@ -74,7 +74,7 @@ abstract class OTS_Base_DAO implements IOTS_DAO
 
 /**
  * Creates clone of object.
- * 
+ *
  * <p>
  * Copy of object needs to have different ID.
  * </p>
@@ -83,38 +83,4 @@ abstract class OTS_Base_DAO implements IOTS_DAO
     {
         unset($this->data['id']);
     }
-
-/**
- * Magic PHP5 method.
- * 
- * <p>
- * Allows object importing from {@link http://www.php.net/manual/en/function.var-export.php var_export()}.
- * </p>
- * 
- * @version 0.1.0
- * @param array $properties List of object properties.
- */
-    public static function __set_state($properties)
-    {
-        // deletes database handle
-        if( isset($properties['db']) )
-        {
-            unset($properties['db']);
-        }
-
-        // initializes new object with current database connection
-        $object = new self();
-
-        // loads properties
-        foreach($properties as $name => $value)
-        {
-            $object->$name = $value;
-        }
-
-        return $object;
-    }
 }
-
-/**#@-*/
-
-?>