/**
  * Display a listing of the resource.
  *
  * @return Response
  */
 public function index()
 {
     $boards = Board::orderBy('created_at', 'desc');
     if (Input::has('fields')) {
         $fields = explode(',', Input::get('fields'));
         $boards = $boards->select($fields);
     }
     if (Input::has('list')) {
         $list = explode(',', Input::get('list'));
         $boards = $boards->where(function ($boards) use($list) {
             $boards->orWhereIn('id', $list)->orWhereIn('code', $list);
         });
     }
     if (Input::has('limit')) {
         $limit = Input::get('limit');
         $offset = Input::get('offset', 0);
         $boards = $boards->skip($offset)->take($limit)->get();
     } else {
         $boards = $boards->get();
     }
     if (!Input::has('fields') or Input::has('fields') && in_array('using_status', $fields)) {
         $response = [];
         $from = Input::get('from', date('Y-m-d'));
         $end = Input::get('end', date('Y-m-d'));
         foreach ($boards as $board) {
             $isUsing = $board->getUsingStatus($from, $end);
             $response[] = array_merge($board->toArray(), ['using_status' => $isUsing]);
         }
         $boards = $response;
     }
     return Response::json($boards);
 }