On Thu, 7 Sep 2006 15:33:02 +0000
"Arnar Birgisson" <[EMAIL PROTECTED]> wrote:
> On 9/7/06, Enrico Morelli <[EMAIL PROTECTED]> wrote:
> > 1) during the definition of the plan table I receive the error:
> > non-keyword arg after keyword arg
> > To correct it I have to put primary_key=True after the ForeignKey
> > definition, is it correct?
>
> Correct - I didn't test the code I sent, sorry.
>
> > 2) I'm trying to put some data on the db. But I don't understand
> > how to put a new instrument in the plain table.
> >
> > If I do:
> > i=session.query(Instrument).get(1)
> > p=PlanEntry()
> > p.day=1
> > p.year=2006
> > p.month=9
> > p.instrument.append(i) or p.instrument.append(Instrument(i))
>
> p.instrument = i should do it.
>
> > I raise an exception: 'str' object has no attribute 'append'
>
> I don't know why p.instrument is a str, should be either None or an
> instance of Instrument. Can someone verify that I'm not misleading
> Enrico here?
>
> Arnar
>
> > On Wed, 6 Sep 2006 15:34:50 +0000
> > "Arnar Birgisson" <[EMAIL PROTECTED]> wrote:
> >
> > > You could do something like this:
> > >
> > > instruments=Table('instruments', metadata,
> > > Column('instrument_id', Integer, primary_key=True),
> > > Column('name', String))
> > >
> > > plan=Table('plan', metadata,
> > > Column('year', Integer, primary_key=True),
> > > Column('month', Integer, primary_key=True),
> > > Column('day', Integer, primary_key=True),
> > > Column('instrument_id', Integer, primary_key=True,
> > > ForeignKey('instruments.instrument_id')),
> > > Column('data', String))
> > >
> > > class PlanEntry: pass
> > > class Instrument: pass
> > >
> > > mapper(Instrument, instruments)
> > > mapper(PlanEntry, plan, properties={
> > > 'instrument': relation(Instrument)
> > > })
> > >
> >
> > --
Thanks again Arnar,
Everything works fine :-))))
I don't know why the p.instrument was a string (I tried your code in
ipython shell, probably a my mistake), but this morning after cutting
and pasting your code, all works fine.
I have to pay you a coffee. ;-))
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| * * * * | phone: +39 055 4574269 |
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