class.ilDclRatingFieldModel.php

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<?php

class ilDclRatingFieldModel extends ilDclBaseFieldModel
{

    public function getRecordQuerySortObject($direction = "asc", $sort_by_status = false)
    {
        // FSX Bugfix 0015735: The average is multiplied with 10000 and added to the amount of votes
        $join_str = "LEFT JOIN (SELECT (ROUND(AVG(rating), 1) * 10000 + COUNT(rating)) as rating, obj_id FROM il_rating GROUP BY obj_id) AS average ON average.obj_id = record.id";
        $select_str = " average.rating AS field_{$this->getId()},";

        $sql_obj = new ilDclRecordQueryObject();
        $sql_obj->setSelectStatement($select_str);
        $sql_obj->setJoinStatement($join_str);
        $sql_obj->setOrderStatement("field_{$this->getId()} " . $direction);

        return $sql_obj;
    }


    public function getRecordQueryFilterObject($filter_value = "", ilDclBaseFieldModel $sort_field = null)
    {
        global $DIC;
        $ilDB = $DIC['ilDB'];

        if (!$sort_field instanceof $this) {
            $join_str = "LEFT JOIN (SELECT (ROUND(AVG(rating), 1) * 10000 + COUNT(rating)) as rating, obj_id FROM il_rating GROUP BY obj_id) AS average ON average.obj_id = record.id";
        }
        // FSX Bugfix 0015735: The average is multiplied with 10000 and added to the amount of votes
        $where_additions = " AND average.rating >= " . $ilDB->quote($filter_value * 10000, 'integer');

        $sql_obj = new ilDclRecordQueryObject();
        $sql_obj->setWhereStatement($where_additions);
        $sql_obj->setJoinStatement($join_str);

        return $sql_obj;
    }
}