Tom Tanner <dontsendemailher...@gmail.com> writes: > I want to query rows and copy them while changing an attribute of each. > Here's my code. > > colObjs= db.session.query(Column).filter_by(chart_id=oldChartID).all() > for colObj in colObjs: > make_transient(colObj) > print colObj.id > del colObj.id > colObj.chart_id= newChartID > db.session.add(colObj) > db.session.commit() > > In this example, `colObjs` has two objects.
Not sure about what causes that, but maybe you just need to commit once, at the end of the loop, that is something like colObjs= db.session.query(Column).filter_by(chart_id=oldChartID).all() for colObj in colObjs: make_transient(colObj) print colObj.id del colObj.id colObj.chart_id= newChartID db.session.add(colObj) # Single commit, when the loop above exits db.session.commit() ciao, lele. -- nickname: Lele Gaifax | Quando vivrò di quello che ho pensato ieri real: Emanuele Gaifas | comincerò ad aver paura di chi mi copia. l...@metapensiero.it | -- Fortunato Depero, 1929. -- 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.