# Form\_for syntax? **URL:** \ **Category:** Rails\ **Created:** [July 20, 2009, 9:01pm UTC](https://www.ruby-forum.com/t/form-for-syntax/172383 "2009-07-20T21:01:36Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![elliottg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/b77776/32.png) [@elliottg](https://www.ruby-forum.com/u/elliottg)\ **Post date:** [July 20, 2009, 9:01pm UTC](https://www.ruby-forum.com/t/form-for-syntax/172383/1 "2009-07-20T21:01:36Z")
I have been using this namespaced form\_for syntax with no problems: \<% form\_for [:admin, @products] do |f| %\> However, now that I am working with a model and controller called “news” which has no differentiation between singular and plural… \<% form\_for [:admin, @news] do |f| %\> … I am getting this exception when running my tests: ActionView::TemplateError: admin\_news\_url failed to generate from {:controller=\>“adminl/news”, :action=\>“show”} - you may have ambiguous routes, or you may need to supply additional parameters for this route. content\_url has the following required parameters: [“admin”, “news”, :id] - are they all satisfied? Rake Routes is showing me that I can get news#index via sitecontrol\_news\_index. I just can’t figure out the syntax to make it all work within the admin namespacing context. Thanks for the help. Elliott ---
**Author:** ![elliottg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/b77776/32.png) [@elliottg](https://www.ruby-forum.com/u/elliottg)\ **Post date:** [July 20, 2009, 9:34pm UTC](https://www.ruby-forum.com/t/form-for-syntax/172383/2 "2009-07-20T21:34:57Z")
You might consider adding an inflection for news in your config/ initializers/inflections.rb. That will tell Rails that the plural of news is news. There are examples in the Rails-generated file. ---
**Author:** ![elliottg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/b77776/32.png) [@elliottg](https://www.ruby-forum.com/u/elliottg)\ **Post date:** [July 20, 2009, 9:38pm UTC](https://www.ruby-forum.com/t/form-for-syntax/172383/3 "2009-07-20T21:38:27Z")
Hi – On Mon, 20 Jul 2009, elliottg wrote: > ActionView::TemplateError: admin\_news\_url failed to generate from > {:controller=\>“adminl/news”, :action=\>“show”} - you may have ambiguous Is that “adminl” a typo in your code, or just in the email? > routes, or you may need to supply additional parameters for this > route. content\_url has the following required parameters: [“admin”, > “news”, :id] - are they all satisfied? > > Rake Routes is showing me that I can get news#index via > sitecontrol\_news\_index. > > I just can’t figure out the syntax to make it all work within the > admin namespacing context. I’m not sure exactly how you’ve got it set up, but starting at the simplest case: if you have this in your routes.rb: map.namespace :admin do |a| a.resources :news end and if @news is a News object, and you’ve got an admin/news controller, you should be OK. David – David A. Black / Ruby Power and Light, LLC Ruby/Rails consulting & training: [http://www.rubypal.com](http://www.rubypal.com) Now available: The Well-Grounded Rubyist ([The Well-Grounded Rubyist](http://manning.com/black2)) Training! Intro to Ruby, with Black & Kastner, September 14-17 (More info: [http://rubyurl.com/vmzN](http://rubyurl.com/vmzN)) ---
**Author:** ![elliottg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/b77776/32.png) [@elliottg](https://www.ruby-forum.com/u/elliottg)\ **Post date:** [July 20, 2009, 10:19pm UTC](https://www.ruby-forum.com/t/form-for-syntax/172383/4 "2009-07-20T22:19:57Z")
Thanks for the input guys. The “adminl” is a email typo only… Here’s a truncated version of my route config. map.namespace :admin do | admin | admin.resources :news, :collection =\> {:sort =\> :post} end My tests confirm that news\_controller.rb#new is indeed sending out a new @news object. And the directory/namespacing is correct for sure. I have already built out several other namespaced resource stacks for this app. Is there a more verbose syntax I can try in form\_for that may allow me to get closer to the metal on this one? Thanks! ---
**Author:** ![elliottg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/b77776/32.png) [@elliottg](https://www.ruby-forum.com/u/elliottg)\ **Post date:** [July 20, 2009, 9:38pm UTC](https://www.ruby-forum.com/t/form-for-syntax/172383/5 "2009-07-20T21:38:28Z")
Hi – On Mon, 20 Jul 2009, s.ross wrote: > You might consider adding an inflection for news in your config/ > initializers/inflections.rb. That will tell Rails that the plural of > news is news. There are examples in the Rails-generated file. It’s already there. I don’t think this is actually a singular/plural issue. David – David A. Black / Ruby Power and Light, LLC Ruby/Rails consulting & training: [http://www.rubypal.com](http://www.rubypal.com) Now available: The Well-Grounded Rubyist ([The Well-Grounded Rubyist](http://manning.com/black2)) Training! Intro to Ruby, with Black & Kastner, September 14-17 (More info: [http://rubyurl.com/vmzN](http://rubyurl.com/vmzN)) ---
**Author:** ![elliottg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/b77776/32.png) [@elliottg](https://www.ruby-forum.com/u/elliottg)\ **Post date:** [July 20, 2009, 10:45pm UTC](https://www.ruby-forum.com/t/form-for-syntax/172383/6 "2009-07-20T22:45:06Z")
I figured it out. It was directly related to the form\_for syntax. I guess that when rails generates the alternative explicit index route. In this case “admin\_news\_index” vs “admin\_news” a more explicit syntax is needed. Instead of this: \<% form\_for [:admin, @news] do |f| %\> I found this solved my problem: \<% form\_for @news, :url =\> admin\_news\_index\_path do |f| %\>