Django-CreateView中的get_inital无法正常工作

Question

我有一个CreateView，我希望它被调用并填充初始数据：

class StartGame(PermissionRequiredMixin, CreateView):
    model = Author

    fields = {'date_of_death'}

    permission_required = 'catalog.can_mark_returned'
    def get_initial(self):
        # Get the initial dictionary from the superclass method
        initial = super(StartGame, self).get_initial()
        # Copy the dictionary so we don't accidentally change a mutable dict
        initial = initial.copy()
        initial['card'] = '0'
        print(initial)
        initial['bb'] = '0'
        print(initial)
        return initial

但是当我从urls.py调用它时，它只能作为。我尝试以不同的方式填充'card'：'0'，“ 0”，0-都一样：

模型看起来是这样

class Author(models.Model):
    """Model representing an author."""

    card = models.CharField(max_length=100)
    second_card = models.CharField(max_length=100)
    date_of_birth = models.DateField(null=True, blank=True)
    date_of_death = models.DateField('died', null=True, blank=True)
    bb = models.IntegerField(default=0)
    voted_id = models.CharField(max_length=1000,default="zero")

我只是不明白为什么它不起作用