public function __construct(array $attributes = array(), $guard_attributes = true, $instantiating_via_find = false, $new_record = true)
 {
     parent::__construct($attributes, $guard_attributes, $instantiating_via_find, $new_record);
     $this->SETFILTERDEFAULT(array(array('field' => 'type', 'value' => static::$TYPE_PRODUCTCAT, 'operator' => static::$OP_EQUAL)));
 }