/**
* @since 2.1.1
* used in form model setJoinData.
* @return array of element names to search data in to create join data array
* in this case append with teh repeatnums data for checkboxes rendered in repeat groups
*/
public function getJoinDataNames()
{
$a = parent::getJoinDataNames();
if ($this->isJoin()) {
$element =& $this->getElement();
$group =& $this->getGroup()->getGroup();
$join =& $this->getJoinModel()->getJoin();
$repeatName = $join->table_join . '___repeatnum';
$fvRepeatName = 'join[' . $group->join_id . '][' . $repeatName . ']';
$a[] = array($repeatName, $fvRepeatName);
}
return $a;
}