Rails，为任意控制器，动作和零个或多个参数构造URL

Question

here is my current workflow:

c = get_some_controller # => "fruits" or nil
a = get_some_action # => "list"
p = get_some_params # => { :type => :orange, :price => 10 }

url = url_for(:controller => c, :action => a) # no option for params ??

So, here is my question, url_for seem does not have any option to pass params.

I guess this use case is pretty common, but rails for some reason not support it or i missed something ?

Answer 1

You just pass params as additional keys:

url_for(p.merge(:controller => c, :action => a))

Or to perhaps be more clear, you could also have done:

url_for(:controller => c, :action => a, :type => :orange, :price => 10)