Question

我有一个与用户多对一的模型。但是当我根据该模型提交表单时，我没有正确地提供用户。

class Thing(models.Model):
    """Things."""
    user = models.ForeignKey(User)
    salt = models.IntegerField()
    # [...]

class GenerateThingForm(ModelForm):
    """A form for registering a new Thing."""
    class Meta:
        model = Thing
        fields = (...)    # There are some, but it would distract here

该观点说明了这一点：

@login_required()
def register_thing(request):
    """Register Thing."""
    if request.method == 'POST': # If the form has been submitted...
        form = GenerateThingForm(request.POST)
        if form.is_valid():
            form.salt = random.getrandbits(32)
            # Apparently I need to specify form.user.
            # Same result if just request.user
            form.user = User.objects.get(request.user)
            form.save()   # Oh, no!  'user_id' is null!

感谢您的任何提示。

Answer 1

不要在表单实例上设置用户或salt，它不知道如何处理它。将其设置在从form.save。

生成的Thing上

thing = form.save(commit=False)
thing.salt = whatever
thing.user = myuser
thing.save()

ForeignKey和表单提交

1 个答案: