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.
--
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