I have: class ThingsCollection < ActiveRecord::Base has_and_belongs_to_many :things, uniq: true end
class Thing < ActiveRecord::Base has_and_belongs_to_many :things_collections, uniq: true end I want to get Things which don't have any ThingsCollections (thing.things_colllection_ids.empty? == true). How can I do this via ActiveRecord & Squeel? (Without SQL query if possible) -- 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 unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/0bf319fef9d82595d9c0c5a3c85e8d7f%40ruby-forum.com. For more options, visit https://groups.google.com/groups/opt_out.
