Thank you. Looks promising. Will try it.


On Sunday, May 3, 2015 at 11:14:08 AM UTC-6, Michael Merickel wrote:
>
> On Sat, May 2, 2015 at 12:09 AM,  <[email protected] <javascript:>> 
> wrote: 
> > In my web app I sometimes use SQLAlchemy expression language rather than 
> > ORM. But then DBSession is unaware of my commands. What is the proper 
> way of 
> > making DBSession flush and commit SQL in this use case? 
>
> The SQLAlchemy session talks to the transaction manager via the 
> zope.sqlalchemy package. However if you run raw sql commands 
> (DBSession.execute) it cannot tell if things have been changed and 
> need to be committed. You have two options: 
>
> 1) After running your query flag the session as changed so that the 
> transaction will realize it needs to be committed. Do this via 
> zope.sqlalchemy.mark_changed(DBSession). 
>
> 2) Have the session default to a changed state thus it will always do 
> a commit instead of a rollback. This would be slightly less performant 
> because you'd be doing a commit even when nothing changed, but can be 
> more convenient. zope.sqlalchemy.register(DBSession, 'changed'). 
>

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