Hi, I am trying to do something similar - I am using the versioning example from here - http://docs.sqlalchemy.org/en/rel_0_7/orm/examples.html?highlight=examples#versioned-objects But instead of using before_flush I want to use after_bulk_update. This is because we use update query in our code and before_flush is not called for bulk updates.
http://stackoverflow.com/questions/14896982/sqlalchemy-versioned-object-not-working I couldn't find a straight fwd way to check if state of the object (is dirty?) or check if it is versioned (like in the example above) using the session object parameter of after_bulk_insert. I looked at "result.context.compiled" I didn't find anything that will give me this info. Has anybody done this? Appreciate any help... thanks. On Sunday, July 7, 2013 10:32:44 AM UTC-7, David Szotten wrote: > > Awesome, thanks! > > (For the record, i was ultimately looking for the field types involved in > the update, which i found with your help above as: > > for bind in result.context.compiled.binds.values(): > field_type = bind.type > if isinstance(field_type, MyField): > raise NotImplementedError("Bulk updates are not yet supported") > > > Thanks again! > > > > On 7 July 2013 17:14, Michael Bayer <mik...@zzzcomputing.com <javascript:> > > wrote: > >> this should probably be available as some documented helper function for >> now, it's tricky to figure out up front what parameters these events will >> need. Really these "bulk" events should get to know all the arguments that >> were passed, including the synchronize_session argument which isn't present >> at all right now. >> >> that particular info you can get like this: >> >> @event.listens_for(Session, "after_bulk_update") >> def bulk_ud(sess, query, ctx, result): >> print result.context.compiled.params >> >> >> >> >> >> On Jul 7, 2013, at 5:51 AM, David Szotten <davids...@gmail.com >> <javascript:>> wrote: >> >> Hi, >> >> Is it possible to find out which class/columns were included in the >> update from an `after_bulk_update` event handler? >> >> From what i can tell from the source, this information lives on the >> `BulkUpdate(Evaluate in my case)` object which isn't passed to the event >> handler, and I can't figure out how to access this info from the available >> variables (session, query, query_context, result) >> >> Thanks >> -d >> >> -- >> You received this message because you are subscribed to the Google Groups >> "sqlalchemy" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sqlalchemy+...@googlegroups.com <javascript:>. >> >> To post to this group, send email to sqlal...@googlegroups.com >> <javascript:>. >> Visit this group at http://groups.google.com/group/sqlalchemy. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "sqlalchemy" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/sqlalchemy/SwOckp6-Vh8/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> sqlalchemy+...@googlegroups.com <javascript:>. >> To post to this group, send email to sqlal...@googlegroups.com >> <javascript:>. >> Visit this group at http://groups.google.com/group/sqlalchemy. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
