Cheers for the explanation, Fred. Following your advice I passed the appropriate HTTP method to the form in the partial and now everything works as it should.
In case it helps anyone else, I now have: new.html.erb: <%= render :partial => "form", :locals => {:url => {:action => "create"}, :method => :post} %> edit.html.erb: <%= render :partial => "form", :locals => {:url => {:action => "update", :id => @flight}, :method => :put} %> _form.html.erb: <% form_for :flight, :url => url, :html=>{:method=> method} do |f| %> Thanks again. -- Posted via http://www.ruby-forum.com/. -- 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.