rubyonrailsin

On Apr 2, 6:23 pm, dirtbug <nyoun...@gmail.com> wrote:
> I have an update button that doesn't update.  Watching the server
> during the attempt, I see:
>
> Processing OrvesController#update (for 128.119.60.171 at 2010-04-02
> 13:13:29) [PUT]
>   Parameters: {"orf"=>nil, "commit"=>"Update", "id"=>"19544"}
>
> orf is my model I'm trying to update in the database.  Why is it nil?
>
It's probably worth taking a look at the raw data posted by the
browser - if it is malformed in some way that could be causing rails
to parse it in a funny way. It probably doesn't help that your html is
malformed (a td must be contained in a tr or similar, i'm pretty sure
you can't stick a form in a table like that and the button_to will
create a second form (ie you'll have a form nested in another form)

Fred
> The view for the page with the update button is called edit.html.erb
> and contains:
>
> <h1>Editing orf</h1>
> <table>
>         <% form_for @orf do |f| %></td>
>           <td><%= f.error_messages %>
>           <td><%= h @orf.locus_tag %></td>
>           <td><%= f.text_field 'current_annotation', :size => 50  %></td>
>                 <td><%= f.submit "Update" %></td>
>                 <td><%= button_to "Undo last change", :action
> => :undo_last_change, :id => @orf %></td>
>         <% end %>
>
> orf's attributes locus_tag and current_annotation are being correctly
> displayed.
>
> Here's the update method:
>
>   def update
>     @orf = Orf.find(params[:id])
>     if @orf.update_attributes(params[:orf])
>       flash[:notice] = 'Orf was successfully updated.'
>       redirect_to orf_path
>     else
>       flash[:notice] = 'Update failed.'
>       redirect_to orf_path
>     end
>   end
>
> routes.rb contains the line:
>   map.resources :orves
>
> No error message appears in the web browser.  The update just doesn't
> change anything.
>
> I'm running Rails 2.3.0.
>
> Any idea what I'm doing wrong?

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