public function search( &$total = null )
	{
		$expr = array_merge( $this->conditions, [$this->filter->compare( '==', 'attribute.domain', $this->domain )] );
		$this->filter->setConditions( $this->filter->combine( '&&', $expr ) );

		return $this->manager->searchItems( $this->filter, $this->domains, $total );
	}