Today i found nice and simple solution how to filter elements in dropdown when you specify filter for field which is forgeign key.

Simple go and edit Peer class of table you want to have things sorted.

?View Code PHP
class [YOURTABLE]Peer extends Base[YOURTABLE]Peer
{
  public static function addSelectColumns(Criteria $criteria)
  {
    parent::addSelectColumns($criteria);
    $criteria->addAscendingOrderByColumn(self::[FIELD YOU WANT TO SORT BY]);
  }
}

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