Rails Haml form url parameter - how to make html form use the desired rails route

Question

With the HAML code:

%form{:action => "activate_foobar", :method => :post, :controller => "foobar", :url => activate_foobar_foobar_index_path}
%input{:type => "submit", :value => "Activate"}

The submit button directs to

No route matches "/activate_foobar"

rather than to "/foobar/activate_foobar". It does not seem to understand the url parameter.

Details

On the index page of foobar, there is a form which I'm trying to post to foobar_controller's method activate_foobar. Foobar does not have a model, as there is no such object - it is only a specialised property of Widget. (Widget has a model, and a method .activate_foobar)

activate_foobar_foobar_index is defined in routes as:

resources :foobar, :only => [:index] do
  collection do
    post :activate_foobar
  end
end

:confirmed with rake:routes to be:

activate_foobar_foobar_index POST     /foobar/activate_foobar(.:format)   {:action=>"activate_foobar", :controller=>"foobar"}

:as expected.

Furthermore, experimentation with a simple:

=link_to "Activate", activate_foobar_foobar_index_path, {:method => :post}

:routed successfully to /foobar/activate_foobar

Within the confines of using a form (and not using simple_form_for or other model based solutions), how do you correct the path "foobar/activate_foobar"?

Sources: I'm following http://guides.rubyonrails.org/routing.html "Adding more RESTful Actions" and http://www.w3schools.com/html/html_forms.asp to try to understand how to direct a form to the right method of the right controller.

ArtDlrt · Accepted Answer · 2013-02-27 19:08:28Z

1

Like you say it send the form to /activate_foobar, for some reason (maybe haml bug) it don't take the :controller param, to solve this in action write

:action => 'foobar/activate_foobar'

but you must be careful because it takes a relative route instead of absolute. So if you don't want to handle that issue I suggest you to change to rails form helper

= form_tag(activate_foobar_foobar_index_path, :method => :post) do

answered Feb 27, 2013 at 19:08

ArtDlrt

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1 Comment

xxjjnn Over a year ago

With or without the controller param, explicitly setting a relative route causes immediate logging out. Form_tag is just what I needed though! Thanks!

Richard Lau · Accepted Answer · 2013-02-27 16:34:14Z

0

since activate_foobar is nested under foobar did you try doing

 :url => activate_foobar_foobar_index_path(@foobar)

you need to tell rails where to look for the specific foobar to activate_foobar.

hope it helps.

answered Feb 27, 2013 at 16:34

Richard Lau

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