From 1b7a89ea9f78866a81791335f838e6ba9a317c8c Mon Sep 17 00:00:00 2001
From: Samuele <samuele.lilli@gmail.com>
Date: Tue, 24 May 2016 11:59:47 +0200
Subject: [PATCH] Update custom_constraint.rst

You have to specify an alias as of

```
//Symfony\Bundle\FrameworkBundle\Validator\ConstraintValidatorFactory.php
[...]
$name = $constraint->validatedBy();

if (!isset($this->validators[$name])) {
    $this->validators[$name] = new $name(); //LOOK HERE; IF I DON'T SPECIFY THIS ALIAS, I WILL END HERE; NO SERVICE THERE!
} elseif (is_string($this->validators[$name])) {
    $this->validators[$name] = $this->container->get($this->validators[$name]);
}

[...]
```
---
 cookbook/validation/custom_constraint.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cookbook/validation/custom_constraint.rst b/cookbook/validation/custom_constraint.rst
index 0c42758dd93..1aa362f5224 100644
--- a/cookbook/validation/custom_constraint.rst
+++ b/cookbook/validation/custom_constraint.rst
@@ -158,7 +158,7 @@ Constraint Validators with Dependencies
 If your constraint validator has dependencies, such as a database connection,
 it will need to be configured as a service in the Dependency Injection
 Container. This service must include the ``validator.constraint_validator``
-tag and may include an ``alias`` attribute:
+tag and *MUST* include an ``alias`` attribute:
 
 .. configuration-block::