On Dec 8, 2011, at 4:55 PM, Michael Hipp wrote: > I'm getting a dirty indication on a particular ORM object from > session.is_modified(rec, passive=True) and also that same rec shows up in > session.dirty. But I can't figure out where/how it's been modified. Is there > some way to determine up which columns are dirty?
assuming you're not using any old style "mutable" attributes, a debugging technique you can use immediately is to look in committed_state: from sqlalchemy.orm.attributes import instance_state instance_state(myobject).committed_state this dictionary shows you what was loaded from the database that's been replaced with something new. This isn't totally public API right now but it is expedient. The more "legit" way is to use attributes.get_history() on each individual attribute. One day when we totally no longer have "mutable" attributes, we may be able to make "committed_state" more of a public system. -- 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.
