Auth Failure in Form - ruby-on-rails-3

Question

Rails has generated this action url for my form:
<form action="/auth/failure?action=update&controller=users"...
I'm authenticated to the website, even If I shouldn't be, it would redirect somewhere as I understand Auth.
My Form code:
<%= form_for #user, :url => { 'controller' => 'users', 'action' => 'update'} do |f| %>
Thanks!

Answer 1

There is two thing you have to know
Ruby makes difference between symbols (:controller, :update) and strings ('controller', 'update').
You do not need to specify :url in this case.
So, for your current code, the correct line is simple:
form_for #user do |f|
If #user is a new record, form_for will point to create action of your UsersController, if #user is an existing record, form_for will point to update action automatically. Rails is smart enough to do this :-)
If you really want to use :url attribute of form_for, you have two option:
Use routing helper methods: form_for #user, :url => user_path(#user), :method => :put
Use a correct path hash: form_for #user, :url => { :controller => :users, :method => :update, :id => #user.id }
Rails uses REST style for building urls if you use resources :users in config/route.rb (and I recommend you to use that), and it have two thing you need to know:
- Collection is a group of entities (in your case, users)
- Member is one entity
So collection URL is something where you can expect multiple entities, member URL is something where you can expect only one entity.
You must use :id when you describe update action with URL-hash, because update can done only on member, not on collection. So you have to build a member URL with a special HTTP method (PUT) to clarify, what do you want to do.