protected function _beforeEdit(KControllerContextInterface $context)
    {
        if ($this->getMixer()->getIdentifier()->name === $this->_category_entity)
        {
            $collection = $this->getModel()->fetch();

            foreach ($collection as $entity)
            {
                $entity->old_enabled = $entity->enabled;
                $entity->old_access  = $entity->access;
            }
        }
    }