Rails：从一个控制器动作重定向到另一个（非GET）

Question

I have a GET route which, before rendering the view, the Controller checks for an optional param. If it's there, I'd like to bypass rendering the view and "redirect" straight to another controller action. The other action is a PUT route and I realize we can't simply redirect to PUT routes as you could to a GET route.

This is roughly what I've attempted so far but I don't know how to invoke the redirect, as it's impossible with PUT. Perhaps there's some different design pattern for handling this sort of behavior? Thanks in advance.

Controller actions:

def foo      
  if 'XYZ'
    # "redirect" to bar
  else
    render 'view'
  end
end

#bar is a PUT route
def bar 
  ...
end

Answer 1

If you have your routes for bar action something like this

match '/controller/bar/' => 'controller#bar'

modify it like

match '/controller/bar/' => 'controller#bar' , :via => [:get,:post,:put]

Answer 2

If you just want to use the bar method given the condition being met

def foo      
  if 'XYZ'
    bar
  else
    render 'view'
  end
end

This would run the bar method and make use of any redirect you have in there. It is more likely that you want to reexamine what it is you are trying to achieve.

If you can give more specifics then you will get a better answer.