Level 1
Laravel > 10.x has changes in the Rule, so you have to modify your custom rule or create new one for your model. here is a sample Rule
<?php
namespace App\Rules;
use App\Models\Categories;
use Closure;
use Illuminate\Contracts\Validation\ValidationRule;
class SlugRuleCategory implements ValidationRule
{
protected $ignoreId;
public function __construct($ignoreId = null)
{
$this->ignoreId = $ignoreId;
}
public function passes($attribute, $value)
{
$query = Categories::where('slug', $value);
if ($this->ignoreId !== null) {
$query->where('id', '!=', $this->ignoreId);
}
return !$query->exists();
}
/**
* Run the validation rule.
*
* @param \Closure(string): \Illuminate\Translation\PotentiallyTranslatedString $fail
*/
public function validate(string $attribute, mixed $value, Closure $fail): void
{
if (!$this->passes($attribute, $value)) {
$fail('The :attribute has already been taken.');
}
}
}