form_for and scopes, rails 3

Question

Hi I have a problem due to scopes and the form_for helper in rails 3. The routes - file looks like this:

scope "(/:tab)" do
  resources :article
end

The form looks something like this:

<%= form_for(@article) %>
   <%= f.label :title %>
   <%= f.text_field :title %>
    etc.
<%end%>

The tab - attribute is stored in params[:tab], as a string My problem is that this genereate wrong urls in the form. How could I get this to work ? The genreated url article_path(params[:tab], @article) works perfectly fine

Answer 1

You could specify the path explicitly:

<%= form_for(@article, :url => article_path(@article, :tab => params[:tab]) %>

Answer 2

Try:

<%= form_for [:tab, @article] do |f| %>
   <%= f.label :title %>
   <%= f.text_field :title %>
    etc.
<%end%>