What's the best way to validate non-entity fields in a form in Symfony2?

Question

As the title suggests, I have a choice field (radio html input) in my form which must have a selection before the user is allowed to proceed.

I have tried adding the validation into my validation.yml file in the bundle (throws an error saying that the field is not a valid entity field), and I have also tried the adding a validator directly in the form code, but received an Exception because the validator classes don't implement the FormValidatorInterface (code is below).

$builder->addValidator(new  CallbackValidator(function(FormInterface $form) {
     if(!$form['has_subalbums']->getData())
     {
         $form->addError(new FormError('Please indicate sub albums'));
     }
}));

What is the correct way to validate non-entity fields?

See the perfect answer here for Symfony 2.1: [Symfony 2 : Add a custom form element, not in an Entity][1] [1]: http://stackoverflow.com/q/10950203/354578 — Gregoire, Aug 20 '12 at 15:52

score 5 · Accepted Answer · answered Nov 25 '11 at 14:05

5

Try:

use Symfony\Component\Form as Form; [...]

 $builder->addValidator(new Form\CallbackValidator(function($form) {
 if(!$form['has_subalbums']->getData())
 {
     $form->addError(new Form\FormError('Please indicate sub albums'));
 }
 }));

answered Nov 25 '11 at 14:05

webda2l

6,686
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5

This is now deprecated in Symfony 2.1. Is there a way to do this in Symfony 2.1? – Mick Jul 14 '12 at 14:40

score 2 · Answer 2 · answered Nov 24 '11 at 20:51

2

You can find an answer here:

answered Nov 24 '11 at 20:51

Elnur Abdurrakhimov

44,533
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+1 for the Form model Pattern. It's really neat once you get the idea! – Sgoettschkes Nov 25 '11 at 08:24
+1 for posting about the form model pattern, although in this case I think it might be a little extravagant for this one situation. – JamesHalsall Nov 25 '11 at 20:13

What's the best way to validate non-entity fields in a form in Symfony2?

2 Answers2