Question

让我们说，我跟随Django模型设置如下：

@python_2_unicode_compatible
class Question(models.Model):
    question_text = models.CharField(max_length=300)
    pub_date = models.DateTimeField('date published')

    def __str__(self):
        return self.question_text

@python_2_unicode_compatible
class Choice(models.Model):
    question = models.ForeignKey(Question, on_delete=models.CASCADE)
    choice_text = models.CharField(max_length=200)
    votes = models.IntegerField(default=0)

    def __str__(self):
        return self.choice_text

所以，当我试图在Django shell中执行这些操作时

q = Question.objects.get(pk=1)
q.choice_set().all()

而不是返回空或任何东西，它只是错误地输出以下消息：

Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/path/to/my/djangoproject/lib/python3.4/site-packages/django/db/models/fields/related_descriptors.py", line 505, in __call__
manager = getattr(self.model, kwargs.pop('manager'))
KeyError: 'manager'

我尝试过使用

q.choice_set()

但没有，同样的错误。任何帮助将不胜感激。

Answer 1

应该是 q.choice_set.all（）

public sub whatsoever()

    Dim alfaarray() As Variant

    Dim g As Integer

    Dim obj As Object

    ReDim alfaarray(4)

    Set obj = New teszt

    For g = 0 To 4
    alfaarray(g) = "g" & CStr(g)
    Next g

    Call obj.init

    CallByName obj, "GARG", VbLet, alfaarray

end sub

Django 1.9.6 Keyrror`manage` on django / db / models / fields / related_descriptors.py，505行

1 个答案: