Dynamic form for a products attributes

I want to display a form where the product attributes can be update. Example db schema:

products
    id
    slug
    name

attributes
    id
    name
    sort
    weight


attribute_values
    id
    attribute_id
    value
    computed

products_attribute_values
    id
    attribute_id
    value_id
    comment

products
    id
    slug
    name

attributes
    id
    name
    sort
    weight


attribute_values
    id
    attribute_id
    value
    computed

products_attribute_values
    id
    attribute_id
    value_id
    comment

I'm able to generate the fields using

foreach ($attributes as $attribute){
    $fields[] = Forms\Components\TextInput::make('attributes.' . $attribute->id)
          ->label($attribute->name)->default('value!');
}

foreach ($attributes as $attribute){
    $fields[] = Forms\Components\TextInput::make('attributes.' . $attribute->id)
          ->label($attribute->name)->default('value!');
}

But the I can't set the field value, instead of seeing "value!" the input field is empty.

1 Reply

🤖transistor🤖•8mo ago

One important thing is missing from your post, are you editing or creating a new record? Becuase the default property won't work on edit, only on create. If that's your case, you want to use the afterStateHydrated and inject your component and model record so you do something like this:

->afterStateHydrated(
    function (Component $component, Model $record) {
        $component->state($record->your_property);
    }
)

->afterStateHydrated(
    function (Component $component, Model $record) {
        $component->state($record->your_property);
    }
)

what throws me off is your loop, have you looked into Relation Managers? https://filamentphp.com/docs/3.x/panels/resources/relation-managers

Managing relationships - Panel Builder - Filament

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Dynamic form for a products attributes