private function save()
 {
     $extended_field = new ExtendedField();
     $extended_field->set_name(TextHelper::htmlspecialchars($this->form->get_value('name')));
     $extended_field->set_field_name(ExtendedField::rewrite_field_name($this->form->get_value('name')));
     $extended_field->set_position(PersistenceContext::get_querier()->get_column_value(DB_TABLE_MEMBER_EXTENDED_FIELDS_LIST, 'MAX(position) + 1', ''));
     $extended_field->set_description(TextHelper::htmlspecialchars($this->form->get_value('description')));
     $field_type = $this->form->get_value('field_type')->get_raw_value();
     $extended_field->set_field_type($field_type);
     if (!$this->form->field_is_disabled('possible_values')) {
         $extended_field->set_possible_values($this->form->get_value('possible_values'));
     }
     if (!$this->form->field_is_disabled('default_value')) {
         $extended_field->set_default_value($this->form->get_value('default_value'));
     }
     $extended_field->set_is_required((bool) $this->form->get_value('field_required'));
     $extended_field->set_display((bool) $this->form->get_value('display'));
     $regex = 0;
     if (!$this->form->field_is_disabled('regex_type')) {
         $regex = is_numeric($this->form->get_value('regex_type', '')->get_raw_value()) ? $this->form->get_value('regex_type', '')->get_raw_value() : $this->form->get_value('regex', '');
     }
     $extended_field->set_regex($regex);
     $extended_field->set_authorization($this->form->get_value('authorizations')->build_auth_array());
     $extended_field->set_is_not_installer(true);
     ExtendedFieldsService::add($extended_field);
     return $extended_field;
 }