<?php declare (strict_types = 1); namespace App\Rules; use App\Models\Category; use Illuminate\Contracts\Validation\Rule; class isNameForCategoryAvaiable implements Rule { public function __construct() { // } public function passes($attribute, $value) { $category = Category::where('name', $value)->get(); return (count($category) === 0) ? true : false; } public function message() { return 'Category with this name ia already exists.'; } }