Laravel 学习笔记之自定义验证

1、在app/Providers/AppServiceProvider.php中添加验证规则函数：

  namespace App\Providers;
 use Validator;
 use Illuminate\Support\ServiceProvider;
 
 
class AppServiceProvider extends ServiceProvider
 {
 /**
 * Bootstrap any application services.
 *
 * @return void
 */
 public function boot()
 {
 Validator::extend('is_odd_string', function($attribute, $value, $parameters, $validator) {
 if(!empty($value) && (strlen($value) % 2) == 0){
 return true;
 }
 return false;
 });
 }
 

2、在validation.php中添加自定义验证规则提示：

  return [
 //自定义
 'is_odd_string' => "The :attribute must be even string lenght.",
 ]
 

3、在控制器中使用：

 public function store(Request $request)
 {
 $this->validate($request, [
 'users_name' => 'required|is_odd_string',
 'user_password' => 'required',
 'date' => 'required|date',
 ], [], [
 'users_name' => '用户名', //修改提示时变量的名称
 'user_password' => '密码',
 'date'=>'日期',
 ]);
 return redirect('Session');
 }
 

4、前端显示

 @if (count($errors) > 0)
 

 

 @foreach ($errors->all() as $error)
 
{{ $error }}
 @endforeach
 
 
 @endif