/**
  * Show a list of all the languages posts formatted for Datatables.
  *
  * @return Datatables JSON
  */
 public function data()
 {
     $question_categories = QuestionCategory::whereNull('question_categories.deleted_at')->select(array('question_categories.id', 'question_categories.name', 'question_categories.created_at'));
     return Datatables::of($question_categories)->add_column('actions', '<a href="{{{ URL::to(\'admin/questioncategory/\' . $id . \'/edit\' ) }}}" class="btn btn-success btn-sm iframe" ><span class="glyphicon glyphicon-pencil"></span>  {{ trans("admin/modal.edit") }}</a>
             <a href="{{{ URL::to(\'admin/questioncategory/\' . $id . \'/delete\' ) }}}" class="btn btn-sm btn-danger iframe"><span class="glyphicon glyphicon-trash"></span> {{ trans("admin/modal.delete") }}</a>
             <input type="hidden" name="row" value="{{$id}}" id="row">')->remove_column('id')->make();
 }