/**
  * Exclude object from result
  *
  * @param     afSaveFilter $afSaveFilter Object to remove from the list of results
  *
  * @return    afSaveFilterQuery The current query, for fluid interface
  */
 public function prune($afSaveFilter = null)
 {
     if ($afSaveFilter) {
         $this->addUsingAlias(afSaveFilterPeer::ID, $afSaveFilter->getId(), Criteria::NOT_EQUAL);
     }
     return $this;
 }