I have a User model, a Post model, and an Interest model.

Using User has_many posts through interests

Using User has_many interests

Using Post has_many users through interests

Using Post has_many interests

Using Interest belongs to Post

Using Interest belongs to User

Application_Controller is as follows:

class ApplicationController < ActionController::Base before_filter :login_from_cookie before_filter :find_user_interests helper :all # include all helpers, all the time session :session_key => '_blah_session'

include AuthenticatedSystem

def find_user_interests @user_interests = current_user ? current_user.interests : []
true end

Application.html.erb has as follows:

<%= render :partial => "users/interests", :object => @user_interests %>

_interests.html.erb partial is as follows:

ul <% unless current_user.nil? then -%>
<% @user_interests.each do |interest| -%> li<%= interest.post.title %>/li <% end %> <% end -%>
/ul

Given all this when I at localhost:3000/posts/1 my partial shows up fine, but when in localhost:3000/posts I get an error "undefined method `title' for nil:NilClass" thus an error in the line li<%= interest.post.title %>/li shown above in the _interests.html.erb partial.

What the heck would be the issue?

TIA

end