CODEWITHSUNDEEP
databaseformssymfonydoctrine-orm
Reydel Leon
Reydel Leon

Reputation: 1075

can I use data transformers to combine fields in forms in symfony2

Is it possible to use Data transformers to merge (n) fields in a form into one persistable field? If it's possible, how to do it? The cookbook only gives an example to transform one piece of data into another type, but I need to be able to dump N fields into only one for persistence. So if I'm showing 6 fields in the form, only 3 are real fields in DB table, first and second fields are to persisted as is, but the remaining 4 fields are to be store in the third table column.

Upvotes: 3

Views: 2473

Answers (1)

Jovan Perovic
Jovan Perovic

Reputation: 20193

You should do it via FormEvent::POST_SUBMIT event.

http://symfony.com/doc/current/cookbook/form/dynamic_form_modification.html

Basically, something like this:

$builder->addEventListener(FormEvents::POST_SUBMIT, function(FormEvent $event) {
        $form = $event->getForm();

        // entity or array
        $data = $event->getData();

        // get data directly from form
        $concatData = $form->get('non_mapped_field1_1')->getData() . ',' . $form->get('non_mapped_field1_2')->getData();

        // assumig that data is entity class
        $data->setSomeField($concatData);
    }
);

Upvotes: 6

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