compatibility SF3

Signed-off-by: matthieu.robillard <m@wbx.fr>

Author: matthieu.robillard

Entity/File.php

@@ -7,14 +7,13 @@
 
 use Symfony\Component\HttpFoundation\File\File AS SymfonyFile;
 use Symfony\Component\HttpFoundation\File\UploadedFile;
-use Symfony\Component\Validator\ExecutionContextInterface;
+use Symfony\Component\Validator\Context\ExecutionContextInterface;
 
 /**
  * wbx\FileBundle\Entity\File
  *
  * @Orm\MappedSuperclass
  * @ORM\HasLifecycleCallbacks
- * @Assert\Callback(methods={"isValid"})
  */
 class File {
 	/**
@@ -815,9 +814,14 @@ protected function fit($w_in, $h_in, $w_box, $h_box, $mode = "in", $upscale = tr
 	}
 
 
+	/**
+     * @Assert\Callback
+     */
 	public function isValid(ExecutionContextInterface $context) {
 		if ($this->file === null && $this->path === null) {
-			$context->addViolationAt('file', 'wbxfilebundle.validator.error.empty', array(), null);
+			$context->buildViolation('wbxfilebundle.validator.error.empty')
+                ->atPath('file')
+                ->addViolation();
 		}
 	}
 

composer.json

@@ -13,7 +13,7 @@
     ],
     "require": {
         "php": ">=5.3.2",
-        "symfony/framework-bundle": ">=2.3"
+        "symfony/framework-bundle": ">=3.4"
     },
     "suggest": {
         "liip/imagine-bundle": "*"