Flash-Messages in Symfony2 doesn't seem to work in my twig-template

Question

I want to add support for flash messages on our pages. I implemented this by following the documentation found here.

I added the following snipplet to my base layout. (i also tried to add it to a specific action template).

{% if app.session.hasFlash('notice') %} 
    <div id="flashmessage" class="flash-notice"> 
       {{ app.session.flash('notice') }} 
   </div> 
{% endif %}

After adding the following error is thrown

Twig_Error_Runtime: Item "hasFlash" for "" does not exist in "MyBundle::layout.html.twig" at line 66

Is there anything else i need to do ?

what does `var_dump($this->get('session'));` output in your controller action? — JamesHalsall, Nov 23 '11 at 13:38
Running a 2.0 symfony I use either `hasFlash()` as in your example or `{% for flashMessage in app.session.getFlashes() %} {{ {{ flashMessage }} {% endfor %}` — Nat Naydenova, Apr 23 '15 at 11:45

c33s · Answer 1 · 2013-07-26T11:58:53.280

18

do you use symfony 2.0 or 2.1 ~~(currently master branch)~~?

for symfony 2.1 the documentation is located here: http://symfony.com/doc/2.1/book/controller.html#flash-messages

flash messages are shown like this:

{% for flashMessage in app.session.flashbag.get('notice') %}
    <div class="flash-notice">
        {{ flashMessage }}
    </div>
{% endfor %}

edited Jul 26 '13 at 11:58

answered Jul 31 '12 at 08:01

c33s

2,612
1
30
43

score 6 · Answer 2 · answered Nov 23 '11 at 17:06

6

Mmm check in your config file that you have auto-started the session:

session:
    default_locale: %locale%
    auto_start:     true

Because the error seems to be that Twig doesn't find the session class, not something about the hasFlash function. In fact I have almost exactly the same code in my layout.

answered Nov 23 '11 at 17:06

Duilio

258
1
10

I agree with that. It seems `app.session` is null inside the Twig template. – Creasixtine Jun 11 '15 at 07:36

score 3 · Answer 3 · answered Mar 20 '15 at 22:22

3

This is pretty old at time of writing so imagine you've worked it out by now, but for reference sake, it's has rather than hasFlash. So..

{% if app.session.flashbag.has('notice') %} 
    <div id="flashmessage" class="flash-notice"> 
       {{ app.session.flashbag.get('notice') }} 
   </div> 
{% endif %}

answered Mar 20 '15 at 22:22

Jenko

799
2
8
11

Doesn't work (2.6) because flashbag.get returns an array. See Manual. – Interlated Jul 24 '15 at 04:35

score 3 · Answer 4 · answered Sep 05 '15 at 19:25

By symfony 2.6 +

{% if app.session.flashbag.has('notice') %}
    {{ app.session.flashbag.get('notice').0 }}<br/>
{% endif %}

Because flashbag is by this version array you need foreach it or use index. I m using index because i dont need something more.

score 1 · Answer 5 · answered Nov 27 '14 at 23:31

1

In controller

$this->get('session')->getFlashBag()->add('notice', 'Your message!');

In your Twig file

{% for flashMessage in app.session.flashbag.get('notice') %}
    <div class="alert alert-warning">{{ flashMessage }}</div>
{% endfor %}

answered Nov 27 '14 at 23:31

Bialy7

87
4

score 0 · Answer 6 · edited Oct 21 '12 at 17:40

0

I just figure out that flash messages are not working if intercept_redirects is true in debug mode.

edited Oct 21 '12 at 17:40

nalply

26,770
15
78
101

answered May 17 '12 at 17:00

Ip512

1

score -1 · Answer 7 · answered Nov 23 '11 at 16:32

-1

Did you set the flash message somewhere in your action?

$this->get('session')->setFlash('notice', 'Your changes were saved!');

Remember that flash messages will be stored on the user's session for exactly one additional request.

answered Nov 23 '11 at 16:32

dlondero

2,539
1
24
33

if you read the question properly, `app.session` does not exist in the twig template, its nothing to do with setting it – JamesHalsall Dec 01 '11 at 13:38

Flash-Messages in Symfony2 doesn't seem to work in my twig-template

7 Answers7

Linked