Question

在我的验证员课程中，我有几条规则我需要在数据库中记录一些验证错误。

以下是我的验证人：

RuleFor(u => u.LastName)
    .Cascade(CascadeMode.StopOnFirstFailure)
    .NotEmpty().WithMessage("Last name is required")
    .Length(3, 20).WithMessage("Must have between 3 and 20 letters");

RuleFor(u => u.BirthDate)
    .Cascade(CascadeMode.StopOnFirstFailure)
    .NotNull().WithMessage("Birth date is required")
    .Must(c => c > new DateTime(1920, 01, 01)).WithMessage("Too old");

RuleFor(u => u.Age)
    .Cascade(CascadeMode.StopOnFirstFailure)
    .NotNull().WithMessage("This is required")
    .GreaterThan(18).WithMessage("Must be at least 18")
    .Must((model, age, context) =>
    {
        DateTime today = DateTime.Today;
        int ageToCompare = today.Year - model.BirthDate.Year;
        return ageToCompare == age;
    }).WithMessage("Invalid age");

对于上述规则，我只想记录特定的错误消息。我知道我可以像这样使用OnAnyFailure：

RuleFor(u => u.Age)
    .Cascade(CascadeMode.StopOnFirstFailure)
    .NotNull().WithMessage("This is required")
    .GreaterThan(18).WithMessage("Must be at least 18").OnAnyFailure(LogOnFailure)
    .Must((model, age, context) =>
    {
        DateTime today = DateTime.Today;
        int ageToCompare = today.Year - model.BirthDate.Year;
        return ageToCompare == age;
    }).WithMessage("Invalid age").OnAnyFailure(LogOnFailure)

private void LogOnFailure(CreateAccountBindingModel obj))
    {
        Debug.WriteLine(obj);
    }

但这样我就无法记录任何有用的内容，因为OnAnyFailure将BindingModel作为参数，因此我只会获取用户输入的值而不会显示错误消息。

我尝试创建可用作OnAnyFailure的扩展方法，但由于我是FluentValidation的新手，我甚至无法编译我的代码。

以下是我的代码：

public static class IRuleBuilderOptionsExtensions
{
    public static IRuleBuilderOptions<T, TProperty> OnAnyFailure<T, TProperty>(this IRuleBuilderOptions<T, TProperty> rule, Action<T, PropertyValidatorContext> onFailure)
    {
        return rule;
        //return rule.Configure(config => {
        //  config.OnFailure = onFailure.CoerceToNonGeneric();
        //});
    }
}

这样我就可以打电话：

private void LogOnFailure(CreateAccountBindingModel obj), PropertyValidatorContext context)
{
    //log logic
}

基本上我需要的是为LogOnFailure创建能够访问PropertyValidatorContext的覆盖。

Answer 1

您可以第二次验证您的模型以显示它：

background: url(../media/pic.png) no-repeat center center fixed;

FluentValidation LogOnFailure覆盖

1 个答案: