public function display_field(ContactField $field)
 {
     $fieldset = $field->get_fieldset();
     $regex = $field->get_regex();
     switch ($regex) {
         case 1:
             $field_class = 'FormFieldNumberEditor';
             $display_constraint = false;
             break;
         case 4:
             $field_class = 'FormFieldMailEditor';
             $display_constraint = false;
             break;
         case 5:
             $field_class = 'FormFieldUrlEditor';
             $display_constraint = false;
             break;
         case 8:
             $field_class = 'FormFieldTelEditor';
             $display_constraint = false;
             break;
         default:
             $field_class = 'FormFieldTextEditor';
             $display_constraint = true;
             break;
     }
     $fieldset->add_field(new $field_class($field->get_field_name(), $field->get_name(), $field->get_default_value(), array('required' => (bool) $field->is_required(), 'description' => $field->get_description()), $display_constraint ? array($this->constraint($regex)) : array()));
 }
 public function display_field(ContactField $field)
 {
     $fieldset = $field->get_fieldset();
     $fieldset->add_field(new FormFieldShortMultiLineTextEditor($field->get_field_name(), $field->get_name(), $field->get_default_value(), array('required' => (bool) $field->is_required(), 'rows' => 10, 'cols' => 80, 'description' => $field->get_description()), array($this->constraint($field->get_regex()))));
 }