为什么redirect_to在around_filter或after_filter不起作用？ [英] Why redirect_to in around_filter or after_filter won't work?

问题描述

如何使redirect_to在这些过滤器中起作用？

我试图改变

  def start 
 ... 
 redirect_to索引
结束
 
结束
 ... 
 redirect_to索引
结束
  
 
到
  around_filter：大约
 
 def 
 ... 
收益
 redirect_to索引
结束
 
开始
 .. 
 end 
 
 def stop 
 ... 
 end 
  
 
 <在动作完成后，它会自动呈现模板，因此在请求完成后您不能呈现/重定向。你可以通过把 redirect_to 放在你需要的操作的最后来解决这个问题。这不是 around_filters 被设计来做的。
 
How to make redirect_to works in those filters? 

I'm trying to change
def start 
  ....
  redirect_to index
end

def end
  ...
  redirect_to index
end  
to
around_filter :around

def around
  ...
  yield
  redirect_to index
end 

def start
  ..
end

def stop
  ...
end

解决方案
After the action is complete it renders the template automatically, thus you cannot render / redirect after the request is complete. You could solve this by putting the redirect_to at the end of the actions that you need it for. This is not what around_filters were designed to do.

                        
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