Question

当我检查我的ModelState [＆＃34; Email＆＃34;]。错误我发现相同的验证错误重复了3次，而且对于我的所有模型都是3次，我的模型包含3个以上的属性。

我想知道为什么这些规则会被执行三次。我正在使用MVC 5，使用Autofac。我找不到错误！没有错误，但是如果每个属性被验证3次，一些验证很复杂，有时连接到数据库，我会担心性能。下面是我用来注册Validators，Fluent Validation和Autofac的代码。

  builder.RegisterAssemblyTypes(System.Reflection.Assembly.Load("MyAssembly"))
   .Where(t => t.Name.EndsWith("Validator"))
   .AsImplementedInterfaces()
   .InstancePerRequest();

  builder.RegisterType<FluentValidationModelValidatorProvider>().As<ModelValidatorProvider>();
  builder.RegisterType<AutofacValidatorFactory>().As<IValidatorFactory>().SingleInstance();

  Container = builder.Build();// Build !

   // FluentValidation wire up to MVC
   var fluentValidationModelValidatorProvider = new FluentValidationModelValidatorProvider()
   {
       AddImplicitRequiredValidator = false,
       ValidatorFactory = new AutofacValidatorFactory()
    };
   //fluentValidationModelValidatorProvider.AddImplicitRequiredValidator = false;
   DataAnnotationsModelValidatorProvider.AddImplicitRequiredAttributeForValueTypes = false;
   ModelValidatorProviders.Providers.Add(fluentValidationModelValidatorProvider);

   GlobalConfiguration.Configuration.DependencyResolver = new AutofacWebApiDependencyResolver(Container);

模型看起来像：

public class ContactInfoDTO
{
    public int ID { get; set; }
    public string Email { get; set; }
    public string Email2 { get; set; }
    public string PhoneNumber { get; set; }
    public string PhoneNumber2 { get; set; }
    public string EmergencyNumber { get; set; }
    public string EmergencyPersonName { get; set; }

    public ContactInfoDTO()
    {

    }
}

Answer 1

这是你应该如何使用Fluent验证：

using FluentValidation;

public class CustomerValidator: AbstractValidator<Customer> {
  public CustomerValidator() {
    RuleFor(customer => customer.Surname).NotEmpty();
    RuleFor(customer => customer.Forename).NotEmpty().WithMessage("Please specify a first name");
    RuleFor(customer => customer.Discount).NotEqual(0).When(customer => customer.HasDiscount);
    RuleFor(customer => customer.Address).Length(20, 250);
    RuleFor(customer => customer.Postcode).Must(BeAValidPostcode).WithMessage("Please specify a valid postcode");
  }

  private bool BeAValidPostcode(string postcode) {
    // custom postcode validating logic goes here
  }
}

Customer customer = new Customer();
CustomerValidator validator = new CustomerValidator();
ValidationResult results = validator.Validate(customer);

bool validationSucceeded = results.IsValid;
IList<ValidationFailure> failures = results.Errors;

您应该为您的模型创建一个验证器，以便您可以控制验证对象时发生的情况。

Answer 2

感谢大家，感谢他们的支持。感谢FluentValidation的所有者Jeremy Skinner先生对此进行了调查，这是下面解决方案的链接。毕竟这是我的错:)

https://github.com/JeremySkinner/FluentValidation/issues/362

流畅的验证模型中的重复错误[＆＃34;道具＆＃34;]）。错误

2 个答案: