/**
  * Substitute field values in placehoders like [[Field Title]] from current record
  *
  * @param string $placeholder
  *
  * @throws ilException
  * @return string
  */
 protected function substituteFieldValue($placeholder)
 {
     if (isset(self::$cache_fields[$placeholder])) {
         $field = self::$cache_fields[$placeholder];
     } else {
         $table = ilDataCollectionCache::getTableCache($this->record->getTableId());
         // TODO May need caching per table in future
         $field_title = preg_replace('#^\\[\\[(.*)\\]\\]#', "\$1", $placeholder);
         $field = $table->getFieldByTitle($field_title);
         if ($field === NULL) {
             // Workaround for standardfields - title my be ID
             $field = $table->getField($field_title);
             if ($field === NULL) {
                 global $lng;
                 /**
                  * @var $lng ilLanguage
                  */
                 $lng->loadLanguageModule('dcl');
                 //					throw new ilException("Field with title '$field_title' not found");
                 throw new ilException(sprintf($lng->txt('dcl_err_formula_field_not_found'), $field_title));
             }
         }
         self::$cache_fields[$placeholder] = $field;
     }
     return $this->record->getRecordFieldHTML($field->getId());
 }
 /**
  * @param bool $editComments
  */
 public function renderRecord($editComments = false)
 {
     global $ilTabs, $tpl, $ilCtrl, $lng;
     $rctpl = new ilTemplate("tpl.record_view.html", false, true, "Modules/DataCollection");
     $ilTabs->setTabActive("id_content");
     $view_id = self::_getViewDefinitionId($this->record_obj);
     if (!$view_id) {
         $ilCtrl->redirectByClass("ildatacollectionrecordlistgui", "listRecords");
     }
     // see ilObjDataCollectionGUI->executeCommand about instantiation
     include_once "./Modules/DataCollection/classes/class.ilDataCollectionRecordViewViewdefinitionGUI.php";
     $pageObj = new ilDataCollectionRecordViewViewdefinitionGUI($this->record_obj->getTableId(), $view_id);
     include_once "./Services/Style/classes/class.ilObjStyleSheet.php";
     $pageObj->setStyleId(ilObjStyleSheet::getEffectiveContentStyleId(0, "dcl"));
     $html = $pageObj->getHTML();
     $rctpl->addCss("./Services/COPage/css/content.css");
     $rctpl->fillCssFiles();
     $table = ilDataCollectionCache::getTableCache($this->record_obj->getTableId());
     foreach ($table->getRecordFields() as $field) {
         //ILIAS_Ref_Links
         $pattern = '/\\[dcliln field="' . preg_quote($field->getTitle(), "/") . '"\\](.*?)\\[\\/dcliln\\]/';
         if (preg_match($pattern, $html)) {
             $html = preg_replace($pattern, $this->record_obj->getRecordFieldSingleHTML($field->getId(), $this->setOptions("\$1")), $html);
         }
         //DataCollection Ref Links
         $pattern = '/\\[dclrefln field="' . preg_quote($field->getTitle(), "/") . '"\\](.*?)\\[\\/dclrefln\\]/';
         if (preg_match($pattern, $html)) {
             $this->currentField = $field;
             $html = preg_replace_callback($pattern, array($this, "doReplace"), $html);
         }
         $pattern = '/\\[ext tableOf="' . preg_quote($field->getTitle(), "/") . '" field="(.*?)"\\]/';
         if (preg_match($pattern, $html)) {
             $this->currentField = $field;
             $html = preg_replace_callback($pattern, array($this, "doExtReplace"), $html);
         }
         $html = str_ireplace("[" . $field->getTitle() . "]", $this->record_obj->getRecordFieldSingleHTML($field->getId()), $html);
     }
     foreach ($table->getStandardFields() as $field) {
         $html = str_ireplace("[" . $field->getId() . "]", $this->record_obj->getRecordFieldSingleHTML($field->getId()), $html);
     }
     $rctpl->setVariable("CONTENT", $html);
     //Permanent Link
     $perma_link = new ilPermanentLinkGUI("dcl", $_GET["ref_id"], "_" . $_GET['record_id']);
     $tpl->setVariable('PRMLINK', $perma_link->getHTML());
     // Buttons for previous/next records
     if ($this->is_enabled_paging) {
         $prevNextLinks = $this->renderPrevNextLinks();
         $rctpl->setVariable('PREV_NEXT_RECORD_LINKS', $prevNextLinks);
         $ilCtrl->clearParameters($this);
         // #14083
         $rctpl->setVariable('FORM_ACTION', $ilCtrl->getFormAction($this));
         $rctpl->setVariable('RECORD', $lng->txt('dcl_record'));
         $rctpl->setVariable('RECORD_FROM_TOTAL', sprintf($lng->txt('dcl_record_from_total'), $this->current_record_position, count($this->record_ids)));
         $rctpl->setVariable('SELECT_OPTIONS', $this->renderSelectOptions());
     }
     // Edit Button
     if ($this->record_obj->hasPermissionToEdit((int) $_GET['ref_id'])) {
         $button = ilLinkButton::getInstance();
         $ilCtrl->setParameterByClass('ildatacollectionrecordeditgui', 'table_id', $this->table->getId());
         $ilCtrl->setParameterByClass('ildatacollectionrecordeditgui', 'redirect', ilDataCollectionRecordEditGUI::REDIRECT_DETAIL);
         $ilCtrl->saveParameterByClass('ildatacollectionrecordeditgui', 'record_id');
         $button->setUrl($ilCtrl->getLinkTargetByClass('ildatacollectionrecordeditgui', 'edit'));
         $button->setCaption($lng->txt('dcl_edit_record'), false);
         $rctpl->setVariable('EDIT_RECORD_BUTTON', $button->render());
     }
     // Comments
     if ($this->table->getPublicCommentsEnabled()) {
         $rctpl->setVariable('COMMENTS', $this->renderComments($editComments));
     }
     $tpl->setContent($rctpl->get());
 }