Description

We have a lot of fields which use EnumType. Now some options start to become deprecated. We still need the enum cases to show them for previous form submissions but they shouldn't be select-able for future form submissions anymore. We now solve this by implementing

interface DeprecationAwareInterface
{
    public function isDeprecated(): bool;
}

on our Enum and then use

'choice_filter' => fn (MyEnum $myEnum) => !$myEnum->isDeprecated(),

to filter the available options.

It would be a nice DX improvement if we could handle this on a more global level (ChoiceType TypeExtension). Maybe by making the choice_filter chainable. Then I could add a global filter with high priority to the chain checking for instanceof DeprecationAwareInterface.

We're not using PHP 8.4 yet, but I would like to use the native #[\Deprecated] attribute as soon as we switch to 8.4 which would also nicely come into play for determining the deprecated options.

Example

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