Laravel nova -自定义字段基于另一个字段设置的值，并且仍可编辑

use Laravel\Nova\Fields\Field;

class CustomField extends Field
{
    /**
     * The field's component.
     *
     * @var string
     */
    public $component = 'custom-field';

    /**
     * Fill the given attribute on the model based on the incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  string  $requestAttribute
     * @param  object  $model
     * @param  string  $attribute
     * @return void
     */
    protected function fillAttributeFromRequest($request, $requestAttribute, $model, $attribute)
    {
        $value = $request->input('dependent_field'); // 获取另一个字段的值

        // 根据另一个字段的值设置当前字段的值
        if ($value === 'some_value') {
            $model->{$attribute} = 'custom_value_1';
        } elseif ($value === 'another_value') {
            $model->{$attribute} = 'custom_value_2';
        } else {
            $model->{$attribute} = 'default_value';
        }
    }
}

use App\Nova\Resource;
use Laravel\Nova\Fields\Select;

class ExampleResource extends Resource
{
    // ...

    /**
     * Get the fields displayed by the resource.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function fields(Request $request)
    {
        return [
            // ...

            Select::make('Dependent Field')->options([
                'option_1' => 'Option 1',
                'option_2' => 'Option 2',
                'option_3' => 'Option 3',
            ]),

            CustomField::make('Custom Field'),

            // ...
        ];
    }
}