The error in save, not in constructor, seems you need to set dome default
value to Team instances, not quite sure
On Sat, Feb 5, 2011 at 2:29 PM, Daniel Klein <bri...@gmail.com> wrote:
> I'm teaching myself django by idling poking at a project in the hope that
> it may become a playable browser game some day. It's early days.
>
> So I have a model "Game", which is one game session. Each game is supposed
> to have two teams. I doubt the content of the Team model matters very much,
> so I'll just paste the relevant bits from Game:
>
> class Game(models.Model):
>
> team1 = models.OneToOneField(Team, related_name="team1", null=True)
>
> team2 = models.OneToOneField(Team, related_name="team2", null=True)
>
>
>
> def __init__(self, *args, **kwargs):
>
> super(Game, self).__init__(self, *args, **kwargs)
>
> self.team1 = Team()
>
> self.team2 = Team()
>
>
> The code I used to have, which worked, manually created a game and its two
> teams. This was in the view for the "create new game" page, which I found
> all kinds of ugly. Since every game should start out with exactly two teams
> in it, it makes most sense to have that code inside the Game model, right?
>
> So here's the error I'm currently getting when I try to save a game:
>
> >>> from game.models import Team, Game
>
> >>> tg = Game(name="testgame")
>
> >>> tg.save()
>
> Traceback (most recent call last):
>
> File "<console>", line 1, in <module>
>
> File "c:\coding\django-1.1.1\django\db\models\base.py", line 410, in save
>
> self.save_base(force_insert=force_insert, force_update=force_update)
>
> File "c:\coding\django-1.1.1\django\db\models\base.py", line 470, in
> save_base
>
> manager.filter(pk=pk_val).extra(select={'a':
> 1}).values('a').order_by())):
>
> File "c:\coding\django-1.1.1\django\db\models\manager.py", line 129, in
> filter
>
> return self.get_query_set().filter(*args, **kwargs)
>
> File "c:\coding\django-1.1.1\django\db\models\query.py", line 498, in
> filter
>
> return self._filter_or_exclude(False, *args, **kwargs)
>
> File "c:\coding\django-1.1.1\django\db\models\query.py", line 516, in
> _filter_or_exclude
>
> clone.query.add_q(Q(*args, **kwargs))
>
> File "c:\coding\django-1.1.1\django\db\models\sql\query.py", line 1675,
> in add_q
>
> can_reuse=used_aliases)
>
> File "c:\coding\django-1.1.1\django\db\models\sql\query.py", line 1614,
> in add_filter
>
> connector)
>
> File "c:\coding\django-1.1.1\django\db\models\sql\where.py", line 56, in
> add
>
> obj, params = obj.process(lookup_type, value)
>
> File "c:\coding\django-1.1.1\django\db\models\sql\where.py", line 269, in
> process
>
> params = self.field.get_db_prep_lookup(lookup_type, value)
>
> File "c:\coding\django-1.1.1\django\db\models\fields\__init__.py", line
> 210, in get_db_prep_lookup
>
> return [self.get_db_prep_value(value)]
>
> File "c:\coding\django-1.1.1\django\db\models\fields\__init__.py", line
> 361, in get_db_prep_value
>
> return int(value)
>
> TypeError: int() argument must be a string or a number, not 'Game'
>
>
> I have no idea what this error means, and I strongly suspect I'm Doing It
> Wrong [tm] in the first place. There's probably a very easy way to do this
> that I'm not seeing.
>
>
> Thanks!
>
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--
===========================
Regards
Ronghui Yu
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