Increase code coverage

src/Rest/Rest_Form_Settings.php

@@ -756,15 +756,16 @@ public function prepare_item_for_response( $item, $request ) {
 		$context = ! empty( $request->get_param( 'context' ) ) ? $request->get_param( 'context' ) : 'edit';
 
 		$data = $this->add_additional_fields_to_object( $data, $request );
-		$data = $this->filter_response_by_context( $data, $context );
 
-		$data = apply_filters( 'gfpdf_form_settings_rest_prepared_response', $data, $request );
+		/* Get the links before the data is filtered */
+		$links = $this->prepare_links( $data );
 
-		/* Wrap the data in a response object. */
+		$data     = $this->filter_response_by_context( $data, $context );
+		$data     = apply_filters( 'gfpdf_form_settings_rest_prepared_response', $data, $request );
 		$response = rest_ensure_response( $data );
 
 		if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
-			$response->add_links( $this->prepare_links( $request, $data ) );
+			$response->add_links( $links );
 		}
 
 		return $response;
@@ -1096,14 +1097,20 @@ protected function get_section_schema( $settings, $group ) {
 	}
 
 	/**
-	 * @param \WP_REST_Request $request
-	 * @param array            $data
+	 * Add links for PDF setting
+	 *
+	 * @param array $data
 	 *
 	 * @return array[]
 	 *
 	 * @since 6.12.0
 	 */
-	protected function prepare_links( $request, $data ) {
+	protected function prepare_links( $data ) {
+
+		if ( ! isset( $data['form'], $data['id'] ) ) {
+			return [];
+		}
+
 		$links = [
 			'self'       => [
 				'href' => rest_url( sprintf( '%s/%d/%s', static::get_route_basepath(), $data['form'], $data['id'] ) ),