eZContentOperationCollection::updateMainAssignment PHP Method

    public static function updateMainAssignment($mainAssignmentID, $ObjectID, $mainAssignmentParentID)
    {
        eZContentObjectTreeNode::updateMainNodeID($mainAssignmentID, $ObjectID, false, $mainAssignmentParentID);
        eZContentCacheManager::clearContentCacheIfNeeded($ObjectID);
        eZContentOperationCollection::registerSearchObject($ObjectID);
        return array('status' => true);
    }