Posted by Kat Crichton Mon, 09 Jan 2006 15:01:00 GMT

Managed the upgrade to version 1 without any major hitches. Just two notable differences...

  • The AJAX stuff is fixed (which stopped us from upgrading to the last release).
  • ActiveRecord has slightly stricter constraints on creation of new objects with has_and_belongs_to_many relationships.

The ActiveRecord change means that you can't create a new object and it's join table based relationships without first saving the main object. If object has_and_belongs_to_many relations, then... 

object = Object.new
object.relations << relation
object.save
needed changing to... 
object = Object.create 
object.relations << relation

It makes some sense, since the identity of object has not yet been created, but it's a bit of a shame that the ORM layer can't hide these issues from you.