> > The Controller is > > class BookController < ApplicationController > layout 'standard' > def show_subjects > @subjects = Subject.find(params[:id]) > > end > > end > > > The show_subjects.rhtml file is : > > <h1><%= @subject.name -%></h1> > <ul> > <% @subject.books.each do |c| %> > <li><%= link_to c.title, :action => "show", :id => c.id -%></li> > <% end %> > </ul> > I don't know if this is a typo in your post or not, but your #show_subjects method sets the "@subjects" (note the plural) instance variable whereas your view references the "@subject" (note -- singular) instance variable.
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