On Dec 7, 11:10 am, Mathew Birch <[email protected]> wrote: > Hi all, > > As part of a school project I need to set up an items collection which > has categories and subcategories. I have used scaffolding to create > these but when i edited the subcategory controller file by inserting > this into the edit function: @category = Category.find_by_id(:all) and > edited the model sub_category.rb to have the following line in it: > > belongs_to :category > > Now my problem is that when I now click the edit button it comes up with > an error: > > TypeError in Sub_categories#edit > Showing ItemCollection/app/views/sub_categories/_form.html.erb where > line #1 raised: > > nil is not a symbol > Extracted source (around line #1): > > 1: <%= form_for(@sub_category) do |f| %>
That suggests that @sub_category is nil. Is it? Fred > 2: <% if @sub_category.errors.any? %> > 3: <div id="error_explanation"> > 4: <h2><%= pluralize(@sub_category.errors.count, "error") %> > prohibited this sub_category from being saved:</h2> > > I even removed my changes to those files and the error still appears. > Anyone have any ideas what might be causing this? > > -- > Posted viahttp://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
