Filament•16mo ago

How can I take the user-selected value in one form field for use in another field?

I would like to make the default() method dynamic by inserting a specific value based on the user's choice in the fk_servizio field, below is the code

                Select::make('fk_servizio')
                    ->label('ID Servizio')
                    ->options(Servizi::all()->pluck('id', 'id'))
                    ->searchable()
                    ->required(),

                TextInput::make('commissione')
                    ->label('Importo')
                    ->numeric()
                    ->minValue(Servizi::where('id', ???)->value('amount'))
                    ->default(Servizi::where('id', ???)->value('amount'))
                    ->required(),

                Select::make('fk_servizio')
                    ->label('ID Servizio')
                    ->options(Servizi::all()->pluck('id', 'id'))
                    ->searchable()
                    ->required(),

                TextInput::make('commissione')
                    ->label('Importo')
                    ->numeric()
                    ->minValue(Servizi::where('id', ???)->value('amount'))
                    ->default(Servizi::where('id', ???)->value('amount'))
                    ->required(),

6 Replies

wyChoong•16mo ago

read the doc https://filamentphp.com/docs/3.x/forms/advanced#injecting-the-state-of-another-field

Select::make('fk_servizio')
                    ->label('ID Servizio')
                    ->options(Servizi::all()->pluck('id', 'id'))
->reactive() //<- add this
                    ->searchable()
                    ->required(),

                TextInput::make('commissione')
                    ->label('Importo')
                    ->numeric()
                    ->minValue(fn($get) => Servizi::where('id', $get('fk_servizio'))->value('amount')) // <- changes
                    ->default(fn($get) => Servizi::where('id', $get('fk_servizio'))->value('amount')) // <- changes
                    ->required(),

Select::make('fk_servizio')
                    ->label('ID Servizio')
                    ->options(Servizi::all()->pluck('id', 'id'))
->reactive() //<- add this
                    ->searchable()
                    ->required(),

                TextInput::make('commissione')
                    ->label('Importo')
                    ->numeric()
                    ->minValue(fn($get) => Servizi::where('id', $get('fk_servizio'))->value('amount')) // <- changes
                    ->default(fn($get) => Servizi::where('id', $get('fk_servizio'))->value('amount')) // <- changes
                    ->required(),

_max28OP•16mo ago

this is exactly what i was looking for, now how could I set the value automatically? I saw that there is no value method

wyChoong•16mo ago

You have to understand what is the code doing and adjust accordingly. I’m just showing you how to get the value from another field and reactive field Maybe you should try $set

_max28OP•16mo ago

of course, I also looked at the documentation only that in v.2.x I can't find anything that says how to set the value field of the form

awcodes•16mo ago

https://filamentphp.com/docs/2.x/forms/advanced#using-closure-customization

Advanced - Form Builder - Filament

_max28OP•16mo ago

oh in the advanced section, alright thank you. I made it

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How can I take the user-selected value in one form field for use in another field?