import ExternalLink from "../../components/external-link";

Validation

Laravel provides several different approaches to validate your application's incoming data. As we plan to use this package in larger projects, better approach would be to use Laravel <ExternalLink href="https://laravel.com/docs/10.x/validation#form-request-validation">Form Request Validation</ExternalLink>. This way we can keep our controllers clean and our code more readable.

Both unique and exists validation rules, require the database to be queried. This packages provides this integration.

⚡️ Unique

The field under validation must be unique for a given Entity. If the column option is not specified, the field name will be used.

To accomplish this, we can use WayOfDev\Cycle\Bridge\Laravel\Rules\Unique rule class.

Example Form Request

This example shows how to use Unique rule class in a form request.

<?php

declare(strict_types=1);

namespace Bridge\Laravel\Admin\Product\Requests;

use Cycle\Database\DatabaseInterface;
use WayOfDev\Cycle\Bridge\Laravel\Rules\Unique;

final class StoreFormRequest
{
    public function rules(DatabaseInterface $database): array
    {
        return [
            'name' => ['required'], // ... just a simple required rule
            // ... other rules
            'category.id' => [
                'bail',
                'required',
                'uuid',
                new Unique($database, 'categories', 'id')
            ],
        ];
    }
}

⚡️ Exists

The field under validation must exist on a given Entity. If the column option is not specified, the field name will be used.

To accomplish this, we can use WayOfDev\Cycle\Bridge\Laravel\Rules\Exists rule class.

Example Form Request

This example shows how to use Exists rule class in a form request.

<?php

declare(strict_types=1);

namespace Bridge\Laravel\Admin\Product\Requests;

use Cycle\Database\DatabaseInterface;
use WayOfDev\Cycle\Bridge\Laravel\Rules\Exists;

final class UpdateFormRequest
{
    public function rules(DatabaseInterface $database): array
    {
        return [
            'name' => ['required'], // ... just a simple required rule
            // ... other rules
            'category.id' => [
                'bail',
                'required',
                'uuid',
                new Exists($database, 'categories', 'id')
            ],
        ];
    }
}