问题
Here's a beginner rails question...
After I do:
format.xml { head: ok}
How do I return from the controller endpoint without showing the view? If I drop off the end of the function at this point, I get what I expect, but if I call 'return', I end up in the view (or in my case in a missing view template). I can code up lots of if/else etc., but it would be nice to early out from the function without ending up in a view template.
I've searched around and can't figure out what the obvious answer is to this; it must be straightforward...
回答1:
You can use "render :nothing => true, :status => :ok" to return without rendering anything, once you have send a render :nothing => true you need to return from the controller, something like this might work. You can swap the head() method call for a render => :nothing followed by a return, the head() method is documented here:
- api.rubyonrails.org/classes/ActionController/Base.html#M000635
Here's the code that should do it for you...
- gist.github.com/126367
Ping me if that doesn't properly answer your question, documentation for the render call with some helpful user comments can be found here:
- apidock.com/rails/ActionController/Base/render
(sorry I couldn't hyperlink the links for you, as a new user stackoverflow won't allow me to post more than one!)
回答2:
Use
render :nothing => true, :status => :ok
in your action method
回答3:
I guess you must be asking for :
render :nothing => true
来源：https://stackoverflow.com/questions/968799/returning-from-rails-controller