Thanks Mike. On Tue, Mar 2, 2021 at 3:52 PM Mike Bayer <mike...@zzzcomputing.com> wrote:
> nope, there's a vague plan in > https://github.com/sqlalchemy/sqlalchemy/issues/5441 for how this might > work but it might keep getting pushed off as it's a big job and there are > many higher priority items. > > > On Tue, Mar 2, 2021, at 5:01 PM, Ketan Patel wrote: > > Hi Mike, > > Just checking if ORM way of handling the conflict during the insert was > ever implemented after this discussion. > On Sunday, February 19, 2017 at 8:00:31 AM UTC-8 Mike Bayer wrote: > > > > On Feb 17, 2017 2:00 PM, "Calvin Young" <calvin...@gmail.com> wrote: > > Michael, > > Thanks for the quick response. In this example, `bar` is *not* the primary > key, so I guess using the ORM here would be out of the question. > > What's your recommendation for refreshing the `foo` object after executing > the `session.execute(do_update_stmt)` statement? Should I do an > `INSERT...ON CONFLICT UPDATE...RETURNING id` and fetch the updated `foo` by > ID, or is there a more preferred approach? > > > > You could take the ID via RETURNING, and then do a simple query.get(), > sure. > > > > > > > > Thanks again, > > Calvin > > > On Wednesday, February 15, 2017 at 12:24:33 PM UTC-8, Mike Bayer wrote: > > Well first off the ORM on the persistence side only identifies objects by > primary key. Is "bar" the primary key here ? That would be one > requirement. > > The semantics of INSERT on conflict most closely match those of > Session.merge(). If you're dealing with primary key, merge will do this > operation right now but it uses separate SELECT and INSERT/UPDATE. an ORM > integration of merge() and INSERT on conflict would need some very > motivated contributors to come on board and help implement and test. It > can be done as a third party extension to start with. > > On Feb 15, 2017 2:13 PM, "Calvin Young" <calvin...@gmail.com> wrote: > > I use the SQLAlchemy ORM in my application, and I know I can use something > the following to perform an `INSERT...ON CONFLICT` statement: > > from sqlalchemy.dialects.postgresql import insert > > > > class Foo(Base): > ... > bar = Column(Integer) > > > foo = Foo(bar=1) > > > insert_stmt = insert(Foo).values(bar=foo.bar) > do_update_stmt = insert_stmt.on_conflict_do_update( > set_=dict( > bar=insert_stmt.excluded.bar, > ) > ) > > session.execute(do_update_stmt) > > Is there a better solution that doesn't require dropping into the > Expression Language? It'd be great if we had a solution that automatically > detected the fields that need to be inserted / update, and that > automatically refreshed the `foo` instance after the committing to the db. > > > -- > 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+...@googlegroups.com. > To post to this group, send email to sqlal...@googlegroups.com. > > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. > > > -- > 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 sqlal...@googlegroups.com. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. > > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/a765d0fa-329f-482c-a2d0-3e6ce0da5a8an%40googlegroups.com > <https://groups.google.com/d/msgid/sqlalchemy/a765d0fa-329f-482c-a2d0-3e6ce0da5a8an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/ef69252e-832f-43a9-aeba-03469f3f8971%40www.fastmail.com > <https://groups.google.com/d/msgid/sqlalchemy/ef69252e-832f-43a9-aeba-03469f3f8971%40www.fastmail.com?utm_medium=email&utm_source=footer> > . > -- *Thank You.* *Regards,* *Ketan Patel * -- 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. 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