CODEWITHSUNDEEP
validationsymfony
tmas
tmas

Reputation: 442

Form validation before post

I would like to already show errors of a form before the form is submitted. I have forms where the database data is incomplete so I would like to show what's already missing before they try to save it.

However $form->isValid() only executes when the form is also submitted (which only happens on post).

I tried the validator but that gives me a list of errors without adding them to the form and it seems a bad work around if I do that myself, however I was unable to figure out form the source how to achieve this.

$form = $this->get('form.factory')->create(SchoolFormType::class, $school, $formOptions);
$form->handleRequest($request);
if ($form->isValid()) {
    // ...
}

Upvotes: 4

Views: 1129

Answers (1)

Alsatian
Alsatian

Reputation: 3135

You can simulate a submit with :

$form->handleRequest($request);

$wasSubmitted = $form->isSubmitted();

if(!$wasSubmitted){
    $form->submit($form->getData(),false);
}

if ($form->isValid()) {
    // ...

    // next lines are to be sure that the form will always need to be submitted manualy :
    if($wasSubmitted){
        $em->persist($entity);
        $em->flush();

        return $this->render ...
    }
}

return $this->render ...

See the submit method in the source code.

Upvotes: 1

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