如何重定向POST请求的URL保持MVC模型值 [英] How to redirect a POST request to a url maintaining model values in MVC

问题描述

我有一个相当标准的排序/过滤器/搜索页的形式，但需要对网址的格式控制。排序/过滤/页的参数都应该是URL的一部分，这样，例如，地址可以通过电子邮件发送给别人。

在添加了另一个筛选参数后，一个POST请求。我的控制器方法是这样的：

  [HttpPost]
公众的ActionResult搜索（字符串filterField，
                           操作filterOperator，
                           串filterValue，
                           PeopleGroupSearchModel模型）;
 

的 PeopleGroupSearchModel 从查询字符串参数填充。在过滤器* 参数从提交的表单值来了。

我想分析所提供的过滤器值，这将随后在名为过滤器模式过滤器添加到集合。然后，采取更新的模型，并将其转换为相应的URL，并通过，作为响应于用户

因此​​，举例来说，如果他们在此页面上：

<？pre> PeopleGroup /搜索页= 4和排序=国家


...和POST：

• filterField = PeopleGroupName


• filterOperator =等于


• filterValue =祖鲁

......一旦所有的处理完成后，在其浏览器的地址应该是这样的：

<$p$p><$c$c>PeopleGroup/Search?page=4&sort=Country&PeopleGroupName=Zulu&PeopleGroupName_op=Equals

所以，或多或少什么，我试图做的：

  [HTTPGET]
公众的ActionResult搜索（PeopleGroupSearchModel模型）
{
    PeopleGroupData.Search（模型）;
    ViewData.Model =模型;
    返回查看（）;
}[HttpPost]
公众的ActionResult搜索（字符串filterField，
                           操作filterOperator，
                           串filterValue，
                           PeopleGroupSearchModel模型）
{
    PeopleGroupFilter过滤= ParseFilter（filterField，
                                           filterOperator，
                                           filterValue）;
    model.Filters.Add（过滤器）;
    返回RedirectToAction（搜索，???）;
}
 

我的非常的新MVC，所以如果我要对这个完全错误的方式，请让我知道！

解决方案

这可能是违反MVC坚持的原则，但一旦我停止战斗框架，只是想到什么，我试图在HTTP的土地做，这个简单解决方案对我的作品：

  [HttpPost]
公众的ActionResult搜索（PeopleGroupColumn filterField，
                           操作filterOperator，
                           串filterValue）
{
    VAR收集=
        HttpUtility.ParseQueryString（Request.QueryString.ToString（））;
    collection.Set（filterField.ToString（），filterValue）;
    collection.Set（filterField.ToString（）+_OP，filterOperator.ToString（））;
    返回新RedirectResult（
        Request.Url.AbsolutePath +？ + collection.ToString（））;
}
 

I have a fairly standard sort/filter/page search form but need control over the format of the url. The sort/filter/page parameters should all be part of the url so that, for example, the address could be emailed to someone.

When another filter parameter is added, a POST request is made. My controller method looks like this:

[HttpPost]
public ActionResult Search(string filterField,
                           Operator filterOperator, 
                           string filterValue, 
                           PeopleGroupSearchModel model);

The PeopleGroupSearchModel is populated from query string parameters. The filter* parameters are coming from the posted form values.

I would like to parse the provided filter values, which will then add a filter to a collection in the model called Filters. Then, take the updated model and convert it to the appropriate url and pass that as the response to the user.

So, for example, if they are on this page:

PeopleGroup/Search?page=4&sort=Country

... and POST:

• filterField = PeopleGroupName
• filterOperator = Equals
• filterValue = Zulu

... once all the processing is done, the address in their browser should be something like:

PeopleGroup/Search?page=4&sort=Country&PeopleGroupName=Zulu&PeopleGroupName_op=Equals

So, more or less what I am trying to do:

[HttpGet]
public ActionResult Search(PeopleGroupSearchModel model)
{
    PeopleGroupData.Search(model);
    ViewData.Model = model;
    return View();
}

[HttpPost]
public ActionResult Search(string filterField,
                           Operator filterOperator,
                           string filterValue,
                           PeopleGroupSearchModel model)
{
    PeopleGroupFilter filter = ParseFilter(filterField, 
                                           filterOperator, 
                                           filterValue);
    model.Filters.Add(filter);
    return RedirectToAction("Search", ???);
}

I am very new to MVC, so if I am going about this completely the wrong way, please let me know!

解决方案

This is probably a violation of MVC priciples, but once I stopped fighting the framework and just thought about what I was trying to do in HTTP-land, this simple solution works for me:

[HttpPost]
public ActionResult Search(PeopleGroupColumn filterField,
                           Operator filterOperator,
                           string filterValue)
{
    var collection =
        HttpUtility.ParseQueryString(Request.QueryString.ToString());
    collection.Set(filterField.ToString(), filterValue);
    collection.Set(filterField.ToString() + "_op", filterOperator.ToString());
    return new RedirectResult(
        Request.Url.AbsolutePath + "?" + collection.ToString());
}

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