Hi guys, I am having trouble getting to counter cache to work properly with a many-to-many relationship. What I have done is:
rails g scaffold post title:string body:text rails g scaffold tag name:string taggings_count:integer rails g model tagging post_id:integer tag_id:integer Then I created the relationship as shown in my Gist: https://gist.github.com/3710093 The idea is to have an input field when creating a post, where tags can be entered seperated by comma. The tag_names method then splits those tags, adds new ones and deletes the ones that are now missing. The counter_cache is correctly increased when adding a tag to the list. However, decreasing the number after a tag removal does not work. I have done some searching and found several blog articles (e.g. http://whilefalse.net/2011/04/05/rails-3-counter-cache-has_many-through/) explaining that this was a bug in Rails 3.0.x that has been addressed in edge rails. See the old bug report on lighthouse: https://rails.lighthouseapp.com/projects/8994/tickets/2824-patch-has_many-through-doesnt-update-counter_cache-on-join-model-correctly and then the fix on Github: https://github.com/rails/rails/commit/52f09eac5b3d297021ef726e04ec19f6011cb302 Why am I still having this problem, when it was fixed two years ago? Am I missing something here? FYI: # rails -v Rails 3.2.8 Cheers, Fabian -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/ejM17NpHKl8J. For more options, visit https://groups.google.com/groups/opt_out.
