let me try to make an example On Tue, Aug 24, 2021, at 1:36 PM, Mike Bayer wrote: > you can use a mapped class directly with pg's insert() construct: > > insert(MyClass).values(...).on_conflict(...) > > are you referring to being able to pass instances of mapped objects to the > values? Just pull these out of each object's `__dict__`, it's much more > efficient than bulk_insert_mappings. You can get object instances back too > using the technique shown at > https://docs.sqlalchemy.org/en/14/orm/session_basics.html#selecting-orm-objects-inline-with-update-returning-or-insert-returning > , basically create the SQL insert() statement you want, make sure it uses > returning(), then use select(MyModel).from_statement(my_insert) to get object > instances back. > > > > > > > > > On Tue, Aug 24, 2021, at 12:17 PM, Anthony Catel wrote: >> Hey, >> >> I'm looking for a way to builk upsert using pg's "on_conflict_do_update" in >> a way that would allow me to use a mapper classe (because the objects I want >> to insert/update are joined-inheritance). >> >> bulk_insert_mappings() would allow me to use its "return_defaults" and to >> provide a Mapper classe. But I couldn't figure out a way to combine it with >> "on_conflict_do_update". >> >> Any hack I could use to glue these two? >> >> Thanks! >> >> >> -- >> 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/48c6462a-c4fd-46c7-aead-464b29a03e27n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/sqlalchemy/48c6462a-c4fd-46c7-aead-464b29a03e27n%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/1dda86f7-1a70-4ba8-8b0d-fb45c3d62bc5%40www.fastmail.com > > <https://groups.google.com/d/msgid/sqlalchemy/1dda86f7-1a70-4ba8-8b0d-fb45c3d62bc5%40www.fastmail.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/ba6e9820-cb52-4a2a-b405-3b85833327ca%40www.fastmail.com.
