[LiveComponent] Bug with ChoiceType in Form

[nklth]

Hi,

I am currently trying out Symfony Forms and Live components to reduce the need for Javascript. The first try outs went quite well and I would love to use this in the future!

But I have found a bug which seemed random at first (my form is a little bit more complicated using the choices type to add additional fields to the form), but I can now reproduce it in a simple form:

Requirements:

I have a form with a choice type and 3 choices, and an additional text field with a NotBlank validation.

Steps to reproduce:

• Select choices zero and one
• Submit the form, which will trigger the validation error of the text field
• Deselect choice zero
• Select choice zero again ==> Triggers error "The selected choice is invalid.". Also from now on the checkbox group seems to be broken

Everything works fine, before the submit is done.

What I have found in the Chrome inspector is: After the first step the data-live-data-value attribute looks like this: {"test":{"choices":["zero","one"],"name":""},"isValidated":false,"validatedFields":["test.choices"]} ==> The choices field is an array, as expected

After step 3 it looks like this: "{"test":{"choices":{"1":"one"},"name":""},"isValidated":true,"validatedFields":[]} ==> The choices field now is a json value

And finally after step 4 it looks like this: {"test":{"choices":"zero","name":""},"isValidated":true,"validatedFields":[]} ==> The choices field now has a string value

And this string value seems to be submitted to the form which triggers the invalid value error.

I have created a reproducer with this simple form here if needed: https://github.com/nklth/live-component-form-choices

[cgo123]

Bump

[cgo123]

Hi i found a workaround: use the PostMount and unset the initialFormData: The prefilled form works fine:

`

[PostMount]

public function postMount(): void
{
    $this->initialFormData = [];
}

protected function instantiateForm(): FormInterface
{
    return $this->createForm(YourFormType::class, $this->initialFormData);
}

`

[carsonbot]

Hey, thanks for your report! There has not been a lot of activity here for a while. Is this bug still relevant? Have you managed to find a workaround?

[carsonbot]

Friendly ping? Should this still be open? I will close if I don't hear anything.

[carsonbot]

Hey,

I didn't hear anything so I'm going to close it. Feel free to comment if this is still relevant, I can always reopen!