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2013-06-05T09:51:58.637
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2013-08-28T10:53:18.017
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2013-08-28T10:53:18.017
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<p>For anyone else looking for help changing their validators to event subscribers (as it is slightly different to normal subscribers) follow this:</p> <h2>Step 1</h2> <p>Change:</p> <p><code>$builder->addValidator(new AddNameFieldValidator());</code><br> to<br> <code>$builder->addEventSubscriber(new AddNameFieldSubscriber());</code></p> <h2>Step 2</h2> <p>Replace your validator class (and all the namespaces) to a subscriber class. Your subscriber class should look like the following: </p> <pre><code>// src/Acme/DemoBundle/Form/EventListener/AddNameFieldSubscriber.php namespace Acme\DemoBundle\Form\EventListener; use Symfony\Component\Form\FormEvent; use Symfony\Component\Form\FormEvents; use Symfony\Component\Form\FormError; use Symfony\Component\EventDispatcher\EventSubscriberInterface; class AddNameFieldSubscriber implements EventSubscriberInterface { public static function getSubscribedEvents() { return array(FormEvents::POST_BIND => 'postBind'); } public function postBind(FormEvent $event) { $data = $event->getData(); $form = $event->getForm(); $form->addError(new FormError('oh poop')) } } </code></pre> <p><strong>You do not need to register the subscriber in a service file (yml or otherwise)</strong></p> <hr> <p>Reference: <a href="http://symfony.com/doc/2.2/cookbook/form/dynamic_form_modification.html#adding-an-event-subscriber-to-a-form-class" rel="nofollow">http://symfony.com/doc/2.2/cookbook/form/dynamic_form_modification.html#adding-an-event-subscriber-to-a-form-class</a></p>
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1. PODeprecated method addValidation and class CallbackValidator in Symfony2
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1. USAndrew Atkinson
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1. USAndrew Atkinson
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1. COThanks for posting your answer! Please note that you should post the essential parts of the answer here, on this site, or your post risks being deleted [See the FAQ where it mentions answers that are 'barely more than a link'.](http://stackoverflow.com/faq#deletion) You may still include the link if you wish, but only as a 'reference'. The answer should stand on its own without needing the link.
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2. COAnswer has been modified.
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