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)
> > })
> >
>
> --
> -------------------------------------------------------------------
> (o_
> (o_ //\ Coltivate Linux che tanto Windows si pianta da solo.
> (/)_ V_/_
> +------------------------------------------------------------------+
> | ENRICO MORELLI | email: [EMAIL PROTECTED] |
> | * * * * | phone: +39 055 4574269 |
> | University of Florence | fax : +39 055 4574253 |
> | CERM - via Sacconi, 6 - 50019 Sesto Fiorentino (FI) - ITALY |
> +------------------------------------------------------------------+
>
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