public function searchNotFor($id)
{
$criteria = new CDbCriteria();
$criteria->compare('name', $this->name, true);
$criteria->compare('price', $this->price);
$criteria->compare('sku', $this->sku, true);
$criteria->compare('category_id', $this->category_id);
$criteria->addNotInCondition('id', [$id]);
return new CActiveDataProvider(get_class($this), ['criteria' => $criteria, 'sort' => ['defaultOrder' => 't.position']]);
}