/**
* finds if a join table record for many to many relationship exists
*
* @param DaoQuery $qry The dao query
* @param string $rightEntity The other entity
* @param int $leftId The id of the left side entity
* @param int $rightId The id of the right side entity
*
* @return bool
*/
public static function existsManyToManyJoin(DaoQuery $qry, $rightClass, $leftId, $rightId)
{
$leftClass = $qry->getFocusClass();
$qry->where(strtolower(substr($leftClass, 0, 1)) . substr($leftClass, 1) . 'Id = ? and ' . strtolower(substr($rightClass, 0, 1)) . substr($rightClass, 1) . 'Id = ?');
$results = self::_getResults($qry, $qry->generateSelectForMTM($rightClass), array($leftId, $rightId), self::AS_ARRAY);
return count($results) > 0;
}
