On 04/09/2017 10:52 AM, SG wrote: > I have two databases with one session for each of them. > I would like to move objects contained in one of them to the other. > I tried to get an object from the first with something like: > > | > obj =sessionA.query(MyClass).filter(MyClass.name=='some name') > | > > and then I tried to add this object to the second session with: > > | > sessionB.add(obj) > sessionB.commit() > | > > but I get this exception: > > | > |Object'<User at 0xnnnnnnnn>'isalready attached to session '1'(thisis'2')| > | > > How could I overcome this exception and be able to move this object? > Is there a way to do this?
This use case is covered here: http://stackoverflow.com/questions/11213665/unbind-object-from-session Call expunge() first. Cheers, M -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- 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 https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
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