我可以向对象添加多个验证器吗？例如：
public interface IFoo
{
int Id { get; set; }
string Name { get; set; }
}
public interface IBar
{
string Stuff { get; set; }
}
public class FooValidator : AbstractValidator<IFoo>
{
public FooValidator ()
{
RuleFor(x => x.Id).NotEmpty().GreaterThan(0);
}
}
public class BarValidator : AbstractValidator<IBar>
{
public BarValidator()
{
RuleFor(x => x.Stuff).Length(5,30);
}
}
public class FooBar : IFoo,IBar
{
public int Id { get; set; }
public string Name { get; set; }
public string Stuff { get; set; }
}
public class FooBarValidator : AbstractValidator<FooBar>
{
public FooBarValidator()
{
RuleFor(x => x)
.SetValidator(new FooValidator())
.SetValidator(new BarValidator());
}
}
运行测试
FooBarValidator validator = new FooBarValidator(); validator.ShouldHaveValidationErrorFor(x => x.Id,0);
我得到一个InvalidOperationException：
Property name could not be automatically determined for expression x => x. Please specify either a custom property name by calling ‘WithName’.
有没有办法实现这个,或者我试图使用FluentValidation的方式,它不意味着被使用？
解决方法
RuleFor正在尝试创建一个属性级别的规则.您还可以使用AddRule函数添加通用规则.
使用这个,我创建了一个复合规则证明的概念.它需要一组其他验证器并运行它们.收益率代码来自FluentValidator的DelegateValidator.我不知道该怎么做,所以我从源头上抓住了这一点.我没有追踪它的全部目的,但一切似乎都是按照原样工作的:)
码
public interface IFoo
{
int Id { get; set; }
string Name { get; set; }
}
public interface IBar
{
string Stuff { get; set; }
}
public class FooValidator : AbstractValidator<IFoo>
{
public FooValidator()
{
RuleFor(x => x.Id).NotEmpty().GreaterThan(0);
}
}
public class BarValidator : AbstractValidator<IBar>
{
public BarValidator()
{
RuleFor(x => x.Stuff).Length(5,IBar
{
public int Id { get; set; }
public string Name { get; set; }
public string Stuff { get; set; }
}
public class CompositeValidatorRule : IValidationRule
{
private IValidator[] _validators;
public CompositeValidatorRule(params IValidator[] validators)
{
_validators = validators;
}
#region IValidationRule Members
public string RuleSet
{
get; set;
}
public IEnumerable<ServiceStack.FluentValidation.Results.ValidationFailure> Validate(ValidationContext context)
{
var ret = new List<ServiceStack.FluentValidation.Results.ValidationFailure>();
foreach(var v in _validators)
{
ret.AddRange(v.Validate(context).Errors);
}
return ret;
}
public IEnumerable<ServiceStack.FluentValidation.Validators.IPropertyValidator> Validators
{
get { yield break; }
}
#endregion
}
public class FooBarValidator : AbstractValidator<FooBar>
{
public FooBarValidator()
{
AddRule(new CompositeValidatorRule(new FooValidator(),new BarValidator()));
}
}
基础测试用例：
[TestMethod]
public void TestValidator()
{
FooBarValidator validator = new FooBarValidator();
var result = validator.Validate(new FooBar());
}
我希望这有帮助.
