I've got one Post and one Tag model, both are linked with a join table (has-and-belongs-to-many relation). Now I want to access all related tags for one post and vice versa all posts with one spefic tag.
Do I need associations in both classes (e.g. has_and_belongs_to_many in Post and Tag)?
Which model creates the join table (Post or Tag)?
I've got an item class (extends Modeler) and every item can have relations to other items. Is it possible to create a self-referential association? If yes, how do I achive this?