public function doAdd(Request $request)
 {
     $project_input = $request->get('project');
     $project = new Project();
     $project->fill($project_input);
     $project->faculty()->associate(Faculty::find($project_input['faculty']['id']));
     if ($project_input['status']['id'] != "") {
         $project->status()->associate(ProjectStatus::find($project_input['status']['id']));
     } else {
         $project->status()->associate(ProjectStatus::where('key', '=', 'draft')->first());
     }
     $project->save();
     if ($user = Auth::user()) {
         $project->createBy()->associate($user);
     }
     return redirect('/backend/admin/project');
 }