Added a validator initializer for the canonical fields.

These fields need to be updated before validating their uniqueness.

Resources/config/validator.xml

@@ -10,6 +10,11 @@
     </parameters>
 
     <services>
+        <service id="fos_user.validator.initializer" class="FOS\UserBundle\Validator\Initializer" public="false">
+            <tag name="validator.initializer" />
+            <argument type="service" id="fos_user.user_manager" />
+        </service>
+
         <!-- Unique Validator Service -->
         <service id="fos_user.validator.unique" class="%fos_user.validator.unique.class%">
             <argument type="service" id="fos_user.user_manager" />

Validator/Initializer.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the FOSUserBundle package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FOS\UserBundle\Validator;
+
+use FOS\UserBundle\Model\UserInterface;
+use FOS\UserBundle\Model\UserManagerInterface;
+use Symfony\Component\Validator\ObjectInitializerInterface;
+
+/**
+ * Automatically updates the canonical fields before validation.
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class Initializer implements ObjectInitializerInterface
+{
+    private $userManager;
+
+    public function __construct(UserManagerInterface $userManager)
+    {
+        $this->userManager = $userManager;
+    }
+
+    public function initialize($object)
+    {
+        if ($object instanceof UserInterface) {
+            $this->userManager->updateCanonicalFields($object);
+        }
+    }
+}