mutateFormDataBeforeFill Method for Create

[intrepidws]

It might be helpful to have a mutateFormDataBeforeFill() method when creating a new record. My use case: I have a system with exhibitors and registrants and I want to have the ability to create a new registrant for an exhibitor, where some of the new registrant data is pre-filled from the exhibitor record.

[ryangjchandler]

@intrepidws Couldn't you use a model event/hook for this instead?

[intrepidws]

@ryangjchandler I'd like the form itself to show the values as a default, so a model event wouldn't work. But you're right that I should be able to use the afterFill hook. Thanks.

[danharrin]

mutateFormDataBeforeFill() wouldnt be appropriate here, as filling the form would then just clear all the values again (since form component defaults are null)

[rajatpatelz]

You can use do this by first registering a Relationship Manager and then using Closure to fill default value of form field like this

...
Forms\Components\TextInput::make('exhibitor_name')->default( function (Livewire $livewire) {
    return $livewire->ownerRecord->name;
} );
...