1.app/Services/CustomValidator.php
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//app/Services/CustomValidator.php <?php namespace App\Services; use App\User; class CustomValidator extends \Illuminate\Validation\Validator { public function validateExistUsers($attribute,$value,$parameters){ return User::whereIn('id', $value)->count() > 0; } } |
2. app/Providers/ValidatorServiceProvider.php
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<?php namespace App\Providers; use Illuminate\Support\ServiceProvider; use App\Services\CustomValidator; class ValidatorServiceProvider extends ServiceProvider { /** * Bootstrap the application services. * * @return void */ public function boot() { // \Validator::resolver(function($translator,$data,$rules,$messages){ return new CustomValidator($translator,$data,$rules,$messages); }); } /** * Register the application services. * * @return void */ public function register() { // } } |
3. config/app.php
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'providers' => [ App\Providers\ValidatorServiceProvider::class, // 追加 ] |
4. controller
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// バリデーションルール $rules = [ 'user_id' => 'required|existUsers', 'subject' => 'required', 'body' => 'required', ]; // 属性の日本語化 $attr = [ 'user_id' => 'ユーザID', 'subject' => '件名', 'body' => '本文', ]; // バリデーション実行 Validator::make($request->all(), $rules)->setAttributeNames($attr)->validate(); |
