So it would seem that there is huge level of subtly in how these path helpers behave based on how your pluralize the helper. So, what I should have written (and what now appears to work) was:
<%= form_for @thread, :as => :thread, :url => thread_message_path(@thread, @message) do |f| %> So that's thread_message_path, not thread_messages_path. However, despite trying other options, it seems I still have to specify the HTTP verb as part of the 'new' case: <%= form_for @thread, :as => :thread, :url => thread_messages_path(@thread), :html => {:method => :post} do |f| %> Failing to specify :post results in the form thinking it should be PUTing instead of POSTing: <form action="/threads/1/messages" class="thread_edit" id="thread_edit" method="post"><div style="margin:0;padding:0;display:inline"><input name="_method" type="hidden" value="put" /> -Mike On May 30, 2010, at 8:05 PM, Michael Jurewitz wrote: > Hi there, > > I can't seem to get form_for to work correctly with the URL I'm providing for > a set of nested resources. Here's what I'm doing in routes.rb: > > resources :threads do > resources :messages > end > > And then I've got the following form that I'm building as part of > /threads/1/messages/1/edit. Both @thread and @message are set by the > controller > > .... > <%= form_for @thread, :as => :thread, :url => thread_messages_path(@thread, > @message) do |f| %> > <%= fields_for :message do |m| %> > ..... > <% end %> > <%= submit_tag "Update Message" %> > <% end %> > > This is producing the following HTML: > > <form action="/threads/1/messages.1" class="thread_edit" id="thread_edit" > method="post"><div style="margin:0;padding:0;display:inline"><input > name="_method" type="hidden" value="put" /> > > Notice that while the HTTP method is correctly PUT, the form action ends in > .1 instead of /1, which is confusing the router. > > > Curiously, the 'new' case seems to be getting properly constructed, though I > had to manually specify the :method to properly generate the URL: > > <%= form_for @thread, :as => :thread, :url => thread_messages_path, :html => > {:method => :post} do |f| %> > <%= fields_for :message do |m| %> > ... > <% end %> > <%= submit_tag "Create Reply" %> > <% end %> > > > Am I doing something obviously wrong or is this a deficiency in the path > convenience methods? Note that I am using ":as =>" all over the place > because the name of my model object (which is actually "Axthread") does not > cleanly map to a named route, and using "thread" as a model name is not an > option. > > -Mike -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.