Flash Message Plugin for Lithium

The Flash Message (li3_flash_message) plugin provides a straightforward interface for displaying status messages to the user.

Goals

• Use existing session storage
• Eliminate message content from controllers
• Easily localize messages
• Use filters to integrate into existing workflow

Integration

<?php

// config/bootstrap/libraries.php:

Libraries::add('li3_flash_message');

?>

Usage

Here is an example of adding flash messages in a controller:

<?php
namespace app\controllers;

use lithium\security\Auth;
use li3_flash_message\extensions\storage\FlashMessage;

class AdministratorsController extends \lithium\action\Controller {
    public function login() {
        if (Auth::check('admin', $this->request)) {
            FlashMessage::write('Logged you in!');
            return $this->redirect(array('Employees::index'));
        }

        $loginFailed = false;
        if ($this->request->data){
            $loginFailed = true;
        }
        return compact('loginFailed');
    }

    public function logout() {
        FlashMessage::write('Logged you out!');
        Auth::clear('admin');
        return $this->redirect('/');
    }
}
?>

To include the messages in your template, simply add:

<?= $this->flashMessage->show() ?>

By default, libraries/li3_flash_message/app/views/elements/flash_message.html.php will be used to render your flash message. You can create app/views/elements/flash_message.html.php to override it and render it however you like!

For a full example of using this library, please see the relevant chapter in "Step by step Li3".