Project Router

A simple library that uses the Symfony2 routing component to route a specific request between two applications. A routing file is used to determine which application (e.g. version1 or version2) to load.

The use-case is a site that is built partially in symfony1 and partially in Symfony2. In this case, the front controller may actually bootstrap the symfony1 project or the Symfony2 project. This library is a convenient way to keep that logic in a familiar routing configuration file.

First, create a project_router.php file and place it in the web directory:

<?php
use Symfony\Component\HttpFoundation\Request;
use Router\ProjectRouter;
require_once __DIR__.'/../src/Router/ProjectRouter.php';

function handle_project_routing(Request $request, $environment, $debug)
{
    $router = new ProjectRouter(__DIR__.'/../app/config', 'project_routing.yml', $debug);
    $app = $router->matchApplication($request, 'v1');

    if ($app == 'v2') {
        $kernel = new AppKernel($environment, $debug);
        $kernel->handle($request)->send();
    } elseif ($app == 'v1')  {
        $path = __DIR__.'/../src/vendor/v1/web';
        $controller = $debug ? 'frontend_dev.php' : 'index.php';
        require $path.'/'.$controller;
    } else {
        throw new Exception(sprintf('Invalid application "%s"', $app));
    }
}

This file is an example, and bootstraps a symfony1 application placed in the src/vendor/v1 directory.

The individual front controllers simply call this new file.

<?php

require_once __DIR__.'/../app/AppKernel.php';
require_once __DIR__.'/project_router.php';

use Symfony\Component\HttpFoundation\Request;

$request = new Request();
handle_project_routing($request, 'prod', false);

Finally, a project_routing.yml file would be placed in the app/config directory with the following basic format::

homepage:
    pattern:  /
    defaults: { _app: v2 }
blog_show:
    pattern:  /blog/:slug
    defaults: { _app: v2 }