public function initEditForm() { global $lng; $form = parent::initEditForm(); // Add File-Upload $in_file = new ilFileInputGUI($lng->txt("bibliography file"), "bibliographic_file"); $in_file->setSuffixes(array("ris", "bib", "bibtex")); $in_file->setRequired(false); $cb_override = new ilCheckboxInputGUI($this->lng->txt("override_entries"), "override_entries"); $cb_override->addSubItem($in_file); $form->addItem($cb_override); $form->setFormAction($this->ctrl->getFormAction($this, "save")); return $form; }