/**
  * Returns the read only version of the edit form. Detaches all {@link FormAction}
  * instances attached since only action relates to revert.
  *
  * Permission checking is done at the {@link CMSMain::getEditForm()} level.
  *
  * @param int $id ID of the record to show
  * @param array $fields optional
  * @param int $versionID
  * @param int $compare Compare mode
  *
  * @return Form
  */
 public function getEditForm($id = null, $fields = null, $versionID = null, $compareID = null)
 {
     if (!$id) {
         $id = $this->currentPageID();
     }
     $record = $this->getRecord($id, $versionID);
     $versionID = $record ? $record->Version : $versionID;
     $form = parent::getEditForm($record, $record ? $record->getCMSFields() : null);
     // Respect permission failures from parent implementation
     if (!$form instanceof Form) {
         return $form;
     }
     $nav = new SilverStripeNavigatorItem_ArchiveLink($record);
     $form->setActions(new FieldList($revert = FormAction::create('doRollback', _t('CMSPageHistoryController.REVERTTOTHISVERSION', 'Revert to this version'))->setUseButtonTag(true), $navField = new LiteralField('ArchivedLink', $nav->getHTML())));
     $fields = $form->Fields();
     $fields->removeByName("Status");
     $fields->push(new HiddenField("ID"));
     $fields->push(new HiddenField("Version"));
     $fields = $fields->makeReadonly();
     $navField->setAllowHTML(true);
     if ($compareID) {
         $link = Controller::join_links($this->Link('show'), $id);
         $view = _t('CMSPageHistoryController.VIEW', "view");
         $message = _t('CMSPageHistoryController.COMPARINGVERSION', "Comparing versions {version1} and {version2}.", array('version1' => sprintf('%s (<a href="%s">%s</a>)', $versionID, Controller::join_links($link, $versionID), $view), 'version2' => sprintf('%s (<a href="%s">%s</a>)', $compareID, Controller::join_links($link, $compareID), $view)));
         $revert->setReadonly(true);
     } else {
         $message = _t('CMSPageHistoryController.VIEWINGVERSION', "Currently viewing version {version}.", array('version' => $versionID));
     }
     $fields->addFieldToTab('Root.Main', new LiteralField('CurrentlyViewingMessage', $this->customise(array('Content' => $message, 'Classes' => 'notice'))->renderWith(array('CMSMain_notice'))), "Title");
     $form->setFields($fields->makeReadonly());
     $form->loadDataFrom(array("ID" => $id, "Version" => $versionID));
     if ($record && $record->isLatestVersion()) {
         $revert->setReadonly(true);
     }
     $form->removeExtraClass('cms-content');
     return $form;
 }
 public function getEditForm($id = null, $fields = null)
 {
     $record = $this->getRecord($id ? $id : $this->currentModuleID());
     return parent::getEditForm($record, $record ? $record->getSettingsFields() : null);
 }