예제 #1
0
파일: ajax.php 프로젝트: nemein/openpsa
 /**
  * This function wraps the form manager processing. If processing is successful, (that is,
  * only 'save'). If editing was successful, the form is frozen in case you want
  * to display it again (usually you want to redirect to the view target).
  *
  * There are several possible return values:
  *
  * - <i>save</i> and the variants <i>next</i> and <i>previous</i> (for wizard usage) suggest
  *   successful form processing. The form has already been validated, synchronized with and
  *   saved to the data source.
  * - <i>cancel</i> the user cancelled the form processing, no I/O has been done.
  * - <i>edit</i>, <i>previous</i>, <i>next</i> indicates that the form is not yet successfully
  *   completed. This can mean many things, including validation errors, which the renderer
  *   already outlines in the Form output. No I/O processing has been done.
  *
  * The form will be automatically validated for 'save' and 'next', but not for 'previous'.
  * If you want to have save the data for example even during 'next', you need to call
  * datamanager->save after this function returned the according return code.
  *
  * Normally, all validation should be done during the Form processing, but sometimes this is
  * not possible. These are the cases where type validation rules fail instead of form validation
  * ones. At this time, the integration of type validation is rudimentary and will
  * transparently return edit instead of validation.
  *
  * @return string One of 'save', 'cancel', 'next', 'previous', 'edit', depending on the schema
  *     configuration.
  * @todo Integrate type validation checks cleanly.
  */
 function process_form()
 {
     if ($this->formmanager === null) {
         throw new midcom_error('You must initialize a controller class before using it.');
     }
     $result = $this->formmanager->process_form();
     // Remove the lock
     if ($this->lock_timeout && ($result === 'save' || $result === 'cancel')) {
         midcom_helper_datamanager2_controller::set_lock($this->datamanager->storage->object, 0);
     } elseif (!midcom_helper_datamanager2_controller::is_locked($this->datamanager->storage->object, $this->lock_timeout)) {
         midcom_helper_datamanager2_controller::set_lock($this->datamanager->storage->object, $this->lock_timeout);
     }
     // Handle successful save explicitly.
     if ($result == 'save' || $result == 'next') {
         // Ok, we can save now. At this point we already have a content object.
         if (!$this->datamanager->validate()) {
             // In case that the type validation fails, we bail with an exception, until
             // we have a better defined way-of-life here.
             throw new midcom_error("Failed to save object, type validation failed:\n" . implode("\n", $this->datamanager->validation_errors));
         }
         if ($result == 'save') {
             if (!$this->datamanager->save()) {
                 if (count($this->datamanager->validation_errors) > 0) {
                     debug_add('Type validation failed. Reverting to edit mode transparently.');
                     debug_print_r('Validation error listing:', $this->datamanager->validation_errors);
                     $result = 'edit';
                 } else {
                     // It seems to be a critical error.
                     throw new midcom_error('Failed to save the data to disk, last midgard error code: ' . midcom_connection::get_error_string() . '. Check the debug level log for more information.');
                 }
             }
         }
     }
     // all others stay untouched.
     return $result;
 }