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覆盖Rails中的默认路由(Override default routing in Rails)

 我们可以覆盖Rails提供的资源的默认路由吗？ 在我的应用程序中，我希望只能通过put方法访问new.html.erb。 但是，通过定义map.resources :model将使用get方法访问new.html.erb，我想改变它。 我可以吗？ 

Can we override the default routing for resources provided by Rails? In my app I want new.html.erb to be accessed only by put method. But, by defining map.resources :model will give access with get method to new.html.erb and I want to change that. Can I?

原文：

更新时间：2022-08-07 06:08

最满意答案

 当然，我可能会弄错，但它看起来像你的LINQ查询的COUNT(*)正在分组上运行，而不是在UserCategory上UserCategory 。  
 如果用g.Count()替换g.Count()会发生什么？  
 如果表没有行， COUNT(*)将不返回1。 只有当表中有1行或更多行并且其中一行或多行中的ProjectId列为NULL ， COUNT(ProjectId)才会低于COUNT(*) 。 

I figured it out. It would appear that because it was doing COUNT(*), it would return null when the project id was null, as mentioned by Jay. This would then be seen as 1 in the count, screwing up the results. 
Changing the count part of the select to below works nicely: 
CategoryCount = g.Where(grp => grp != null).Count()
 
Thanks for your replies

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