Fill form data when a specific field changes

Hello, I have this form:

$form->schema([
    Forms\Components\TextInput::make('hourly_price')
        ->label(trans('admin.room.hourly_price'))
        ->numeric()
        ->default(0)
        ->required(),
    Forms\Components\TextInput::make('daily_price')
        ->label(trans('admin.room.daily_price'))
        ->numeric()
        ->default(0)
        ->required(),
    Forms\Components\TextInput::make('monthly_price')
        ->label(trans('admin.room.monthly_price'))
        ->numeric()
        ->default(0)
        ->required(),
]);

$form->schema([
    Forms\Components\TextInput::make('hourly_price')
        ->label(trans('admin.room.hourly_price'))
        ->numeric()
        ->default(0)
        ->required(),
    Forms\Components\TextInput::make('daily_price')
        ->label(trans('admin.room.daily_price'))
        ->numeric()
        ->default(0)
        ->required(),
    Forms\Components\TextInput::make('monthly_price')
        ->label(trans('admin.room.monthly_price'))
        ->numeric()
        ->default(0)
        ->required(),
]);

I want when hourly_price value changes I calculate the daily_price and monthly_price and fill them automatically. How can I implement this? I tried using afterStateUpdated but it seems that I cannot access all the form data and manipulate the values.

Solution:

https://filamentphp.com/docs/3.x/forms/advanced#injecting-a-function-to-set-the-state-of-another-field

Advanced forms - Form Builder - Filament

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7 Replies

Tin•16mo ago

In your afterStateUpdated use Set $set to change the value of other fields

Solution

Tin•16mo ago

https://filamentphp.com/docs/3.x/forms/advanced#injecting-a-function-to-set-the-state-of-another-field

Advanced forms - Form Builder - Filament

awcodes•16mo ago

You will also need to make ‘hourly_price’ ->reactive()

SEMICOLON;•16mo ago

Can I access the value daily_price inside TextInput::make('hourly_price')->afterStateUpdated(...) ? is seems that state returns only the value hourly_price

TextInput::make('hourly_price')->afterStateUpdated(function (Closure $set, $state) {
    dd($state);
})

TextInput::make('hourly_price')->afterStateUpdated(function (Closure $set, $state) {
    dd($state);
})

state returns only the input of hourly_price

Tin•16mo ago

use $get closure

awcodes•16mo ago

$state only applies to that specific field. So you use $get and $set to manipulate other field values.

SEMICOLON;•16mo ago

Thank you so much guys 👍

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Fill form data when a specific field changes