Rails - Jul 2005 - collection_select not selecting the selected item

Hi !

I have Event belongs_to Category.  The generated source is:
<p><label
for="event_category">Category</label><br/>
<select id="event_category" name="event[category]">
   <option value="8">Introduction</option>
   <option value="7">Programming</option>
</select></p>

Notice no values are selected, even there is a selection (7, to be 
exact).  So, I dug up in the Rails code, and I found 
ActionView::Helpers::InstanceTag#to_collection_select_tag.  Except line 
4 of this method is:

"select", add_blank_option(
   options_from_collection_for_select(
     collection, value_method, text_method, value),
   options[:include_blank]), html_options
[split for readability; looking at r1739, line 306: 
http://dev.rubyonrails.org/svn/rails/trunk/actionpack/lib/action_view/helpers/form_options_helper.rb]

I''m wondering where the "value" item is coming from...  If I
remember
correctly, that should invoke self.value in the context of the method, 
but what value will be returned ?

Can someone tell me where I''ve gone wrong ?  I have been struggling
with
this for the past two hours, and it''s driving me nuts :)

Thanks !
François

Yeah, right...  Ten seconds after sending, I found ticket #1125: 
http://dev.rubyonrails.com/ticket/1125

Shouldn''t there be some kind of AR helper to select from associated 
objects ?

Thanks,
François