Fix example app deprecation warnings with Symfony 2.2

Author: amacneil

composer.json

@@ -21,7 +21,7 @@
     "require": {
         "php": ">=5.3.3",
         "guzzle/http": "3.*",
-        "symfony/http-foundation": "2.*"
+        "symfony/http-foundation": "~2.0"
     },
     "require-dev": {
         "guzzle/plugin-mock": "3.*",

example/index.php

@@ -21,14 +21,6 @@
 // enable Silex debugging
 $app['debug'] = true;
 
-// twig globals
-$app->before( function() use ( $app ) {
-    $notice = $app['session']->getFlash('notice');
-    if ($notice) {
-        $app['twig']->addGlobal('notice', $notice);
-    }
-});
-
 // root route
 $app->get('/', function() use ($app) {
     $gateways = array_map(function($name) {
@@ -62,7 +54,7 @@
     $app['session']->set($sessionVar, $gateway->getParameters());
 
     // redirect back to gateway settings page
-    $app['session']->setFlash('success', 'Gateway settings updated!');
+    $app['session']->getFlashBag()->add('success', 'Gateway settings updated!');
 
     return $app->redirect($app['request']->getPathInfo());
 });

example/views/layout.twig

@@ -9,14 +9,9 @@
     <div class="container">
         <h1>{{ title }}</h1>
 
-        {% set success = app.session.flash('success') %}
-        {% set error = app.session.flash('error') %}
-        {% if success %}
-            <div class="alert alert-success">{{ success }}</div>
-        {% endif %}
-        {% if error %}
-            <div class="alert alert-error">{{ error }}</div>
-        {% endif %}
+        {% for message in app.session.flashbag.get('success') %}
+            <div class="alert alert-success">{{ message }}</div>
+        {% endfor %}
 
         {% block content %}{% endblock %}
     </div>