merged branch jmikola/doctrine-unique-proxies (PR #3933)

Commits
-------

41bdf26 [DoctrineBridge] Initialize proxies in UniqueEntityValidator

Discussion
----------

[DoctrineBridge] Initialize proxies in UniqueEntityValidator

Bug fix: yes
Feature addition: no
Backwards compatibility break: no
Symfony2 tests pass: [![Build Status](https://secure.travis-ci.org/jmikola/symfony.png?branch=master)](http://travis-ci.org/jmikola/symfony)
Fixes the following tickets: #3163

---------------------------------------------------------------------------

by stof at 2012-04-13T18:17:57Z

I think you should use ``$em->initializeObject($value)`` instead (which is a no-op for other objects)

---------------------------------------------------------------------------

by jmikola at 2012-04-13T18:24:22Z

@stof: Thanks for the suggestion. I wasn't aware of that method.

src/Symfony/Bridge/Doctrine/Validator/Constraints/UniqueEntityValidator.php

@@ -78,6 +78,12 @@ class UniqueEntityValidator extends ConstraintValidator
             }
 
             if ($class->hasAssociation($fieldName)) {
+                /* Ensure the Proxy is initialized before using reflection to
+                 * read its identifiers. This is necessary because the wrapped
+                 * getter methods in the Proxy are being bypassed.
+                 */
+                $em->initializeObject($criteria[$fieldName]);
+
                 $relatedClass = $em->getClassMetadata($class->getAssociationTargetClass($fieldName));
                 $relatedId = $relatedClass->getIdentifierValues($criteria[$fieldName]);