static public function fetchLimitations()
    {
        /** @var eZTagsObject[] $tags */
        $tags = self::fetchList( array( 'parent_id' => 0, 'main_tag_id' => 0 ), null, null, true );

        if ( !is_array( $tags ) )
            return array();

        $returnArray = array();
        foreach ( $tags as $tag )
        {
            $returnArray[] = array( 'name' => $tag->attribute( 'keyword' ), 'id' => $tag->attribute( 'id' ) );
        }

        return $returnArray;
    }