CompareActionChangeValues.php

<?php

declare (strict_types = 1);

namespace App\Nova\Actions;

use App\Models\Product;
use Illuminate\Bus\Queueable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Support\Collection;
use Laravel\Nova\Actions\Action;
use Laravel\Nova\Fields\ActionFields;
use Laravel\Nova\Fields\Select;
use Laravel\Nova\Http\Requests\NovaRequest;

class CompareActionChangeValues extends Action
{
    use InteractsWithQueue, Queueable;

    public $onlyOnIndex = true;

    protected ?string $sku;
    protected ?int $id;

    public function __construct(?string $sku, ?int $id)
    {
        $this->sku = $sku;
        $this->id = $id;
    }

    public function handle(ActionFields $fields, Collection $models)
    {
        if (count($models) > 1) {
            return Action::danger('Choose too much rows!');
        }

        if (!$fields->changeModel || !$fields->changeField) {
            return Action::danger('All fields is required!');
        }
        $productFromChange = Product::where('id', $models[0]->id)->firstOrFail();
        $changeField = $fields->changeField;
        Product::where('id', $fields->changeModel)->update([$fields->changeField => $productFromChange[strtolower($changeField)]]);
    }

    public function fields(NovaRequest $request)
    {
        $products = 0;
        if ($this->sku) {
            $products = Product::where('sku', $this->sku)->where('id', '!=', $this->id)->pluck('name', 'id')->all();
        }
        return [
            Select::make('Model to change', 'changeModel')
                ->options(
                    $products
                )
                ->required(),
            Select::make('Field to change', 'changeField')
                ->options([
                    'price' => 'price',
                    'description' => 'description',
                    'name' => 'name',
                ])
                ->required(),
        ];

    }
}