Filament•10mo ago

Setting default value in input with createOptionForm

The ->default(fn (Get $get): ?int => $get('state_id')) in following code returns $get('state_id') as null, even though I select a value in state_id select, how can I prefill an input in the create createOptionForm modal with the value from another form field?

Forms\Components\Select::make('city_id')
->label('City')
->relationship('city', 'name')
->options(
    fn (Get $get) => $get('state_id')
        ? City::whereStateId($get('state_id'))->pluck('name', 'id')
        : []
)
->createOptionForm([
    Forms\Components\TextInput::make('state_id')
        ->default(fn (Get $get): ?int => $get('state_id'))
        ->required(),
    Forms\Components\TextInput::make('name')
        ->required(),
])
->preload()
->live()
->required(),
]),

Forms\Components\Select::make('city_id')
->label('City')
->relationship('city', 'name')
->options(
    fn (Get $get) => $get('state_id')
        ? City::whereStateId($get('state_id'))->pluck('name', 'id')
        : []
)
->createOptionForm([
    Forms\Components\TextInput::make('state_id')
        ->default(fn (Get $get): ?int => $get('state_id'))
        ->required(),
    Forms\Components\TextInput::make('name')
        ->required(),
])
->preload()
->live()
->required(),
]),

Solution:

That's because the $get in that context is the form in the createOptionForm modal, not the parent form. So you are just getting the same state_id you are trying to set a default on. I don't know if this will work, but you could try something like ... ```php...

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2 Replies

Solution

cheesegrits•10mo ago

->createOptionForm(function (Get $get) {
  return [
    Forms\Components\TextInput::make('state_id')
        ->default($get('state_id'))
        ->required(),
    Forms\Components\TextInput::make('name')
        ->required(),
  ];
  }
)

->createOptionForm(function (Get $get) {
  return [
    Forms\Components\TextInput::make('state_id')
        ->default($get('state_id'))
        ->required(),
    Forms\Components\TextInput::make('name')
        ->required(),
  ];
  }
)

SLy•10mo ago

Yes, it works, thank you!

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Setting default value in input with createOptionForm