you've got a situation like this: ft = session.query(FieldType).first()
f = Field() ft.of_members.append(f) assert f in session # normally returns True, assuming normal cascade on "of_members" session.expunge(f) # remove f from the session session.flush() # generates warning, since ft.of_members has changed but the contents aren't in the Session Another cause could be, "of_members" has a cascade that doesn't include save-update, like "cascade='delete'" is a common mistake. On Mar 28, 2012, at 6:45 PM, lars van gemerden wrote: > Hi all, > > I am getting the error: "SAWarning: Object of type <Field> not in > session, add operation along 'FieldType.of_members' will not proceed" > and have no idea where to start looking for the error. Can anyone help > me with some idea of why this warning occurs or what direction to look > in order to fix it? > > The warning occurs only during the first call of a specific method, > while i think i reset everything (e.g. dropping all tables in the > database) between calls. > > Cheers, Lars > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To post to this group, send email to sqlalchemy@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. > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@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.
