add('file', FileType::class, [ 'label' => 'import.form.file_label', 'required' => true, ]) ->add('mark_as_read', CheckboxType::class, [ 'label' => 'import.form.mark_as_read_label', 'required' => false, ]) ->add('save', SubmitType::class, [ 'label' => 'import.form.save_label', ]) ; } public function getBlockPrefix() { return 'upload_import_file'; } }