使用Lightspeed进行MVC3验证

时间:2011-03-20 03:03:02

标签: validation asp.net-mvc-3 lightspeed

我的ORM(LightSpeed)为动态表生成此名称,其中包含姓名和年龄。使用MVC3和Razor

   [Serializable]
  [System.CodeDom.Compiler.GeneratedCode("LightSpeedModelGenerator", "1.0.0.0")]
  [System.ComponentModel.DataObject]
  [Table(IdColumnName="AnimalID", IdentityMethod=IdentityMethod.IdentityColumn)]
  public partial class Animal : Entity<int>
  {     
    [ValidatePresence]
    [ValidateLength(0, 50)]
    private string _name;

    [ValidateComparison(ComparisonOperator.GreaterThan, 0)]
    private int _age;

    public const string NameField = "Name";
    public const string AgeField = "Age";

    [System.Diagnostics.DebuggerNonUserCode]
    [Required] // ****I put this in manually to get Name required working
    public string Name
    {
      get { return Get(ref _name, "Name"); }
      set { Set(ref _name, value, "Name"); }
    }

    [System.Diagnostics.DebuggerNonUserCode]
    public int Age
    {
      get { return Get(ref _age, "Age"); }
      set { Set(ref _age, value, "Age"); }
    }

添加[必需]属性:

enter image description here

未添加[Required]属性:(注意LightSpeed奇怪的渲染验证)

enter image description here

填写姓名:

enter image description here

在上面的图片中 - 顶部的验证是LightSpeed(放入ValidationSummary),旁边是MVC3(放入ValidationMessageFor)

目前仅使用服务器端验证。

问题:如何让LightSpeed验证在MVC3中运行良好?

我认为这个领域是http://www.mindscapehq.com/staff/jeremy/index.php/2009/03/aspnet-mvc-part4/

对于服务器端验证 - 您将需要使用自定义模型绑定器,它可以更精确地发出LightSpeed验证中的错误,而不是利用DefaultModelBinder行为。看一下直接使用或调整社区代码库中的EntityModelBinder以获取Mvc

http://www.mindscapehq.com/forums/Thread.aspx?PostID=12051

2 个答案:

答案 0 :(得分:1)

请参阅链接http://www.mindscapehq.com/forums/Thread.aspx?ThreadID=4093

Jeremys的回答(Mindscape得到了很大的支持!)

public class EntityModelBinder2 : DefaultModelBinder
  {
    public static void Register(Assembly assembly)
    {
      ModelBinders.Binders.Add(typeof(Entity), new EntityModelBinder2());

      foreach (Type type in assembly.GetTypes())
      {
        if (typeof(Entity).IsAssignableFrom(type))
        {
          ModelBinders.Binders.Add(type, new EntityModelBinder2());
        }
      }
    }

    public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
    {
      object result = base.BindModel(controllerContext, bindingContext);

      if (typeof(Entity).IsAssignableFrom(bindingContext.ModelType))
      {
        Entity entity = (Entity)result;

        if (!entity.IsValid)
        {
          foreach (var state in bindingContext.ModelState.Where(s => s.Value.Errors.Count > 0))
          {
            state.Value.Errors.Clear();
          }

          foreach (var error in entity.Errors)
          {
            if (error.ErrorMessage.EndsWith("is invalid")) continue;
            bindingContext.ModelState.AddModelError(error.PropertyName ?? "Custom", error.ErrorMessage);
          }
        }
      }

      return result;
    }
  }

并在Global.asax注册中使用:

EntityModelBinder2.Register(typeof运算(myEntity所).Assembly);

Register调用设置模型装订器,用于模型装配中的每个实体类型,以便根据需要进行修改。

答案 1 :(得分:0)

从04/04/2011开始,您可以使用Lightspeed nightly版本进行客户端验证。

按如下方式创建验证器提供程序:

public class LightspeedModelValidatorProvider : DataAnnotationsModelValidatorProvider
{
    private string GetDisplayName(string name)
    {
        return name; //  go whatever processing is required, eg decamelise, replace "_" with " " etc
    }

    protected override IEnumerable<ModelValidator> GetValidators(ModelMetadata metadata, ControllerContext context, IEnumerable<Attribute> attributes)
    {

        if(typeof(Entity).IsAssignableFrom(metadata.ContainerType))
        {
            List<Attribute> newAttributes = new List<Attribute>(attributes);
            var attr = DataAnnotationBuilder.GetDataAnnotations(metadata.ContainerType, metadata.PropertyName, GetDisplayName(metadata.PropertyName));
            newAttributes.AddRange(attr);

            return base.GetValidators(metadata, context, newAttributes);
        }

        return base.GetValidators(metadata, context, attributes);
    }
}

然后在Application_Start()中添加

        ModelValidatorProviders.Providers.Clear();
        ModelValidatorProviders.Providers.Add(new LightspeedModelValidatorProvider());