Thanks !!! I also felt the second sounds more "right" which leads to
two requirements, the first is for convenience but the second is a
must:

1) On the admin page for add Place I will put 2 or 3 slots for adding
Subplace to a place ... is there a way where the first one would be
filled with "default" by default? so that each created place would
have a default subplace?

2) On the admin page for add event there will be a drop down list for
the subplace.... most of the subplaces will be called "default" is
there a way to change the label on drop down list to "place -
subplace". i tried to change the __unicode__ of subplace to "return
u"% - %" % (self.place, self.name)" but it generated and error that
subplace object has no attribute 'place'.

thanks

On Oct 24, 2:27 am, Léon Dignòn <leon.dig...@gmail.com> wrote:
> The second sounds more logically.
>
> On 23 Okt., 15:41, chefsmart <moran.cors...@gmail.com> wrote:
>
> > I would go with your second solution.
>
> > On Oct 23, 5:17 pm, Caisys <amamd...@gmail.com> wrote:
>
> > > Hi,
> > > I have classes for Event, Place and Subplace. Some of the Places are
> > > divided into different Halls (Subplace) and some have only one. I
> > > would like to know how design the relations between the classes.
>
> > > 1) Should I put two columns in the Event one FK to Place and another
> > > FK to Hall?
> > > 2) Should I create one FK only to Hall and create a record in Hall for
> > > every Place even if the Place has no Halls?
>
> > > Thanks- Zitierten Text ausblenden -
>
> > - Zitierten Text anzeigen -
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