public function createCursoView($attempt)
 {
     $attempt = strip_tags(htmlspecialchars($attempt));
     $attempt = filter_var($attempt, FILTER_SANITIZE_NUMBER_INT);
     $attempt = filter_var($attempt, FILTER_VALIDATE_INT);
     $attempt = intval($attempt);
     $action = $this->app->urlFor('admin-curso-post');
     $tipo_curso = TipoCurso::all();
     $maestros = Maestro::all();
     $perfiles = array();
     foreach ($maestros as $key => $value) {
         $perfil = Perfil::find($value->maestro_id);
         $perfiles[] = $perfil;
     }
     $this->view = new CreateCursoView($action, Utilities::createToken(), $tipo_curso, $perfiles, $attempt);
     $this->view->display();
     //Utilities::printData($perfiles);
 }