public function NumberOfStagesWithStops()
 {
     if (Stage::get()) {
         $stage = ProcessStage::get()->filter("ParentID", $this->ID)->Count();
         $stop = ProcessStopStage::get()->filter("ParentID", $this->ID)->Count();
         return $stage + $stop;
     } else {
         return 0;
     }
 }
 public function ProcessStages()
 {
     return ProcessStage::get()->filter('ParentID', $this->ProcessID);
 }