Silex: Redirect with Flash Data - php

Question

I need to redirect one page to another with a message in Silex. Hopefully there's a Laravelesque way of doing it, but I highly doubt it:
$app->redirect('/here', 301)->with('message', 'text');
I'd then want to display the message in my template:
{{ message }}
If not, is there another way?
Update
I see there's a getFlashBag method in Symfony - is that what I'm supposed to use? Specifically, I am using the Bolt Content Management system.

Answer 1

Yes, FlashBag is the right way.
Set a flash message in your controller (you can add multiple messages):
$app['session']->getFlashBag()->add('message', 'text');
$app->redirect('/here', 301)
And print it in the template:
{% for message in app.session.getFlashBag.get('message') %}
{{ message }}
{% endfor %}

Answer 2

I created this simple FlashBagTrait that may be of use:
<?php
use Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface;
trait FlashBagTrait
{
/**
* #return FlashBagInterface
*/
public function getFlashBag() {
return $this['session']->getFlashBag();
}
}
Just add it to your Application class and it will make things ever-so-slightly easier!
$app->getFlashBag()->add('message',array('type'=>"danger",'content'=>"You shouldn't be here"));
{% if app.flashbag.peek('message') %}
<div class="row">
{% for flash in app.flashbag.get('message') %}
<div class="bs-callout bs-callout-{{ flash.type }}">
<p>{{ flash.content }}</p>
</div>
{% endfor %}
</div>
{% endif %}
Its main advantage is that type-hinting will work in PhpStorm.
You can also add it as a service provider,
$app['flashbag'] = $app->share(function (Application $app) {
return $app['session']->getFlashBag();
});
Which makes it more convenient to use from PHP (but you lose the type-hinting):
$app['flashbag']->add('message',array('type'=>"danger",'content'=>"You shouldn't be here"));