CODEWITHSUNDEEP
phpformsvalidationsymfony
Alec
Alec

Reputation: 2154

Accessing all form fields during validation of Symfony2 form

Consider the following form:

$builder->add('home_team', 'choice', [$options])
    ->add('away_team', 'choice', [$more_options])
    ->add('timestamp', 'datetime_picker', [$usual_stuff]);

I wish to validate these fields, and see that no other Match exists with the same home_team, away_team and timestamp.

I have made a UniqueMatchValidator with a validate() function but I need some help here.

I'm going to do a database call with the values from the form to check for duplicates, but in order to do that, I need to know the values of all three fields, while applying the Validator to only one of the fields.

Question

How can I access the values of all the form fields from inside the Validator?

Upvotes: 1

Views: 372

Answers (2)

Dmitry Grachikov
Dmitry Grachikov

Reputation: 316

As mentioned above it's better to use FormTypes and data classes.

However even with arrays you can use form validation and get all fields using event listener:

        $builder
        ->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) {
            $event->getData(); //you will get array with field values
            $event->getForm()->addError(...); // if something happens error can be addded
        })

Actually form validator uses this event too.

Upvotes: 1

Ajir
Ajir

Reputation: 215

Your form should basically contains an entity. You need to do your validations using callbacks in the entity. Using callback, you can access all the properties of that entity.

This link will surely help you to understand it better: Symfony2 Form Validation Callback

Upvotes: 0

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