Wie erhalte ich die ID des aktuell angemeldeten Benutzers?

immodels.py:

class Game(models.model):
    name = models.CharField(max_length=255)
    owner = models.ForeignKey(User, related_name='game_user', verbose_name='Owner')

imviews.py:

gta = Game.objects.create(name="gta", owner=?)