action ) { add_action('wp_ajax_' . $this->action, array($this, 'route')); } } /** * Map admin-ajax requests to the corresponding method callback. */ public function route() { register_shutdown_function( array( $this, 'shutdown' ) ); $method = strtolower( $_SERVER['REQUEST_METHOD'] ); /* * Request Method Override * Allows for a POST request to function as another Request Method * by passing a `method_override` value as a request parameter. * For example, some servers do not support the DELETE request method. */ if( 'post' == $method and isset( $_REQUEST[ 'method_override' ] ) ){ $method = sanitize_text_field( $_REQUEST[ 'method_override' ] ); } if( ! method_exists( $this, $method ) ){ $this->_errors[] = __( 'Endpoint does not exist.', 'ninja-forms' ); $this->_respond(); } $request_data = $this->get_request_data(); try { $data = $this->$method($request_data); $this->_respond( $data ); } catch( Exception $e ) { $this->_errors[] = $e->getMessage(); } $this->_respond(); } /** * [OVERRIDE THIS] Get sanitized request data for use in method callbacks. * @return array */ protected function get_request_data() { // This section intentionally left blank. /* * [Example] FORM ID */ // if( isset( $_REQUEST[ 'form_id' ] ) && $_REQUEST[ 'form_id' ] ){ // $request_data[ 'form_id' ] = absint( $_REQUEST[ 'form_id' ] ); // } return array(); } /** * Returns debugging data when a fatal error is triggered. */ public function shutdown() { $error = error_get_last(); if( $error !== NULL && in_array( $error[ 'type' ], array( E_ERROR, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR ) ) ) { $this->_errors[ 'form' ][ 'last' ] = __( 'The server encountered an error during processing.', 'ninja-forms' ); if( current_user_can( 'manage_options' ) && isset( $error[ 'message' ] ) ){ $this->_errors[ 'form' ][ 'last_admin' ] = '

' . $error[ 'message' ] . '

'; } $this->_errors[ 'last' ] = $error; $this->_respond(); } } }