制作卡片应用程序。用户可以制作一副牌并将卡片放入该副牌中。牌组和卡片在其模型中有一个“所有者”字段来说明用户是谁。你知道吗
你知道吗表单.py你知道吗
class CardForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
# Pop() removes 'user' from the kwargs dictionary and populates the user variable
user = kwargs.pop('owner')
super(CardForm, self).__init__(*args, **kwargs)
self.fields['deck'] = forms.ModelChoiceField( # modify choices on 'deck' field
queryset=Deck.objects.filter(owner=user)
)
class Meta:
model = Card
fields = ('term', 'definition', 'deck')
触发按键错误的部分是
super(CardForm, self).__init__(*args, **kwargs)
你知道吗视图.py你知道吗
def card_new(request, deck):
if request.method == "POST":
form = CardForm(request.POST)
if form.is_valid():
card = form.save(commit=False)
card.save()
return redirect('card:detail', deck)
else:
form = CardForm(initial={'deck': deck}, owner=request.user) # this initial field sets card's deck as current deck
return render(request, 'card/card_edit.html', {'form': form})
你知道吗型号.py你知道吗
class Card(models.Model):
owner = models.ForeignKey(User, null=True, default=True, related_name='oc')
term = models.CharField(max_length=100, default='N/A')
definition = models.TextField(default='N/A')
deck = models.ForeignKey(Deck, on_delete=models.CASCADE)
对于POST请求,应该传递
owner
,就像对于GET请求一样。你知道吗相关问题 更多 >
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