南希的多个自定义模型粘合剂

Question

你能在Nancy有多个自定义模型绑定器吗？我需要绑定来自datatables jQuery插件的服务器端处理请求,这不适合我们当前的"mvc样式"自定义模型绑定器.特别是关于列表,数据表将它们表示为mylist_0,mylist_1等而不是mylist [0],mylist [1].

那么我可以添加另一个模型绑定器来处理这些不同的列表样式,如果我这样做,南希怎么知道使用哪一个？

Answer 1

您可以将自定义ModelBinder添加到项目中,以处理您正在讨论的类的绑定.

using System;
using System.IO;
using Nancy;

namespace WebApplication3
{
    public class CustomModelBinder : Nancy.ModelBinding.IModelBinder
    {
        public object Bind(NancyContext context, Type modelType, object instance = null, params string[] blackList)
        {
            using (var sr = new StreamReader(context.Request.Body))
            {
                var json = sr.ReadToEnd();
                // you now you have the raw json from the request body
                // you can simply deserialize it below or do some custom deserialization
                if (!json.Contains("mylist_"))
                {
                    var myAwesomeListObject = new Nancy.Json.JavaScriptSerializer().Deserialize<MyAwesomeListObject>(json);
                    return myAwesomeListObject;
                }
                else
                {
                    return DoSomeFunkyStuffAndReturnMyAwesomeListObject(json);
                }
            }
        }

        public MyAwesomeListObject DoSomeFunkyStuffAndReturnMyAwesomeListObject(string json)
        {
            // your implementation here or something
        }

        public bool CanBind(Type modelType)
        {
            return modelType == typeof(MyAwesomeListObject);
        }
    }
}