From 1c806c720e7b1558ba84b6d4353a3ea6554b72a0 Mon Sep 17 00:00:00 2001
From: m_hikage <kurt.ma.coll@gmail.com>
Date: Wed, 17 Aug 2016 12:48:39 +0800
Subject: [PATCH] Error in CSRF example code snippet

Something's wrong when I tried this code:

`$formFactory = Forms::createFormFactoryBuilder()`
`        // ...`
`       ->addExtension(new CsrfExtension($csrfStorage))`
`        ->getFormFactory();`

Constructing a `CsrfExtension` requires a `CsrfTokenManagerInterface` as an argument (see symfony/form/Extension/Csrf/CsrfExtension.php, line 24).

The `$csrfStorage` in `addExtension(new CsrfExtension($csrfStorage)`, has a class that implements `TokenStorageInterface` (see symfony/security-csrf/TokenStorage/SessionStorageToken.php,  line 22).

So I replaced it with `$csrfManager` that has class that implement `CsrfTokenManagerInterface`. (see symfony/security-csrf/CsrfTokenManager.php, line 24)
---
 components/form.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/form.rst b/components/form.rst
index 9590929848b..4b8a2500fc6 100644
--- a/components/form.rst
+++ b/components/form.rst
@@ -134,7 +134,7 @@ The following snippet adds CSRF protection to the form factory::
 
     $formFactory = Forms::createFormFactoryBuilder()
         // ...
-        ->addExtension(new CsrfExtension($csrfStorage))
+        ->addExtension(new CsrfExtension($csrfManager))
         ->getFormFactory();
 
 Internally, this extension will automatically add a hidden field to every