A course has many lessons and a lesson has many topics. A topic can have a recipe or vice versa, a recipe has many topics (optional).
I need to come up with the most efficient way of querying the database to find those topics belonging to a course (via lessons of course) which have a recipe (in other words recipe_id is not null for this topic record). Simple but challenging :) Thanks for your time. Bharat -- Posted via http://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.
