I'm not sure if I found a bug, or just an undocumented corner of form_for and wanted to see if anyone here can provide any insight before I open a Trac ticket.
When using form_form and passing multiple parameters to the :url hash the block parameter wasn't getting initialized ("f" in the example below)
<% form_for :person, :url=>{:short_name=>@competition, :action=>:start} do |f| -%> <%= f.text_field :foo -%> <% end -%>
Will result in an error message like "undefined local variable or method "f" on the f.text_field line. This error only occured in test environments, never in production.
The above error happened under autotest and rake:test. Running an individual test case however would normally yield a "You have a nil object .... nil.text_field" style error message insteaad.
If I change it to <% form_for :person, @person, :url=>{:short_name=>@competition, :action=>:start} do |f| -%> <%= f.text_field :foo -%> <% end -%>
it now works, but I was under the impression that the explicit model object variable wasn't required. Is this a bug in form_for? or is there some undocumented requirement for the explicit model obejct in certain cases?
Thanks