On Feb 4, 4:24 am, "King Simon-NFHD78" <[email protected]>
wrote:
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On Behalf Of Mike Driscoll
> > Sent: 04 February 2010 03:34
> > To: sqlalchemy
> > Subject: [sqlalchemy] Another tutorial!
>
> > Hi,
>
> > I just finished up a tutorial series on SqlAlchemy that I thought I'd
> > share:
>
> >http://www.blog.pythonlibrary.org/2010/02/03/another-step-by-s
> > tep-sqlalchemy-tutorial-part-1-of-2/
> >http://www.blog.pythonlibrary.org/2010/02/03/another-step-by-s
> > tep-sqlalchemy-tutorial-part-2-of-2/
>
> > Hopefully it's made well enough that people can follow the tutorial
> > easily. Let me know if I made any serious blunders.
>
> > Thanks,
>
> > Mike
>
> Hi Mike,
>
> Not a serious blunder, but I think there may be a small mistake in part
> 2, where you describe updating an email address:
>
>   # change the first address
>   prof.addresses[0] = Address("[email protected]")
>
> I don't think this is going to update the '[email protected]' row in the
> database to say '[email protected]'. Instead, it is going to disconnect
> that row from the user by setting the user_id to NULL, and add a new row
> with the new address. (This may be what you intended, but I don't think
> it's clear from the description).
>
> I would have thought that you'd actually want to write this:
>
>   # change the first address
>   prof.addresses[0].email_address = "[email protected]"
>
> Hope that helps,
>
> Simon

I was testing this in IDLE and it seemed to work when I did
prof.addresses to check it. If the user gets set to NULL, wouldn't
prof.addresses only show one entry? I'll check it out and make sure.
If I messed it up, I'll get it fixed. Thanks for the bug report!

- Mike

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