If you want to interact with fields outside of Repeater input, then you can use use $get('../../parent_field_name').
Yes, $get is very powerful function.
Let's say you have few Fields in the form - Order fields.
<?php
use App\Models\Product;
use Filament\Forms;
use Filament\Forms\Form;
public static function form(Form $form): Form
{
return $form
->schema([
Forms\Components\TextInput::make('order_number')
->label('Order Number')
->placeholder('Order Number')
->maxLength(20)
->required(),
Forms\Components\Repeater::make('products')
->relationship()
->schema([
Forms\Components\TextInput::make('product_code')
->label('Product Code')
->required(),
Forms\Components\Select::make('product_id')
->label('Product')
->options(Product::query()->pluck('name', 'id'))
->required()
->reactive()
->afterStateUpdated(fn ($state, Forms\Set $set) =>
$set('price', Product::find($state)?->retail_price ?? 0)
)
->distinct()
->disableOptionsWhenSelectedInSiblingRepeaterItems()
->searchable(),
Forms\Components\TextInput::make('quantity')
->label('Quantity')
->numeric()
->default(1)
->required(),
Forms\Components\TextInput::make('price')
->label('Unit Price')
->disabled()
->numeric()
->required(),
]),
]);
}
Now, you want to access the order number in the product repeater, you can do with
Forms\Components\TextInput::make('product_code')
->label('Product Code')
->required()
->afterStateUpdated(function(Forms\Get $get) {
return $get('../../order_number'); // using .. you can access parent component value. same as directory structure.
}),
For more details you can refer the Filament doc for the same.
and there you go!..
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