I have created a custom type in order to store denormalized PKs in a TEXT field. The idea is that the text is converted back and forth from a set of integers:
http://paste.pocoo.org/show/249784/ This seems to work OK, however if you make a change to the set it's not picked up by SQLAlchemy on commit. For example, given the following model: class Post(DeclarativeBase): __tablename__ = "posts" id = Column(Integer, primary_key=True) votes = Column(DenormalizedText) def __init__(self, *args, **kwargs): super(Post, self).__init__(*args, **kwargs) self.votes = self.votes or set() If I do this: post = Post() post.votes.add(3) session.add(post) session.commit() The value '3' is committed to the 'votes' column as expected. However if I then try to modify: post.votes.add(5) session.commit() The change to the set is not saved to the DB, i.e. it's still "3". -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalch...@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
