protected function deleteNonFunctionalRequirement($id, $requirementId)
 {
     if ($id == null || $requirementId == null) {
         return Response::json('', 400);
     }
     $requirement = NonFunctionalRequirement::where('Project_FK', '=', $id)->where('id', '=', $requirementId)->first();
     if (empty($requirement)) {
         return Response::json('', 400);
     }
     $requirement->delete();
 }
 protected function getRequirementSpecificationPercent($id)
 {
     $counter = 0;
     $introduction = ProjectIntroduction::where('Project_FK', '=', $id)->first();
     if (count($introduction) > 0) {
         $counter++;
     }
     $non = NonFunctionalRequirement::where('Project_FK', '=', $id)->first();
     if (count($non) > 0) {
         $counter++;
     }
     $quality = ProjectQuality::where('Project_FK', '=', $id)->first();
     if (count($quality) > 0) {
         $counter++;
     }
     $need = NeedToHave::where('Project_FK', '=', $id)->first();
     if (count($need) > 0) {
         $counter++;
     }
     $nice = NiceToHave::where('Project_FK', '=', $id)->first();
     if (count($nice) > 0) {
         $counter++;
     }
     $result = Result::where('Project_FK', '=', $id)->first();
     if (count($result) > 0) {
         $counter++;
     }
     $use = ProjectUse::where('Project_FK', '=', $id)->first();
     if (count($use) > 0) {
         $counter++;
     }
     $actual = ActualState::where('Project_FK', '=', $id)->first();
     if (count($actual) > 0) {
         $counter++;
     }
     $target = TargetState::where('Project_FK', '=', $id)->first();
     if (count($target) > 0) {
         $counter++;
     }
     $data = ProductData::where('Project_FK', '=', $id)->first();
     if (count($data) > 0) {
         $counter++;
     }
     return $counter;
 }