/**
  * Show the form to add a new client to a project.
  *
  * @param int $projectId
  *
  * @return Response
  */
 public function create($projectId)
 {
     $project = Project::findOrFail($projectId);
     $clients = Client::whereNotIn('id', ProjectClient::where('project_id', '=', $projectId)->lists('client_id'))->get()->lists('name', 'id');
     if (count($clients) === 0) {
         \Session::flash('info', 'project.client.all-added');
         return redirect()->route('project.show', ['project' => $projectId]);
     }
     return view('project.client.create', ['project' => $project, 'clients' => $clients]);
 }