public function getDetachField($field_id, $ct_id)
 {
     $type = ContentType::find($ct_id);
     $field = Field::find($field_id);
     $type->fieldable()->detach($field->id);
     return back()->withMsg("Поле \"{$field->name}\" от материала \"{$type->name}\" успешно отвязано");
 }