我有一个基本上是产品页面的 FormView。您可以查看产品详细信息并通过该页面上的表单请求产品。我希望将页面设置为任何人都可以查看该页面，但只有登录的人才能请求该产品。为此，我在 FormView 的 post 函数中添加了一个 login_required 装饰器，但出现错误:
'QueryDict' object has no attribute 'user'
我如何编写此 View /表单以使其按照我描述的方式运行？
查看:
class RedeemReward(SingleObjectMixin, FormView):
template_name = 'reward.html'
slug_field = 'reward_slug'
form_class = Redeem_Reward
model = Reward
@method_decorator(login_required)
def post(self, request, *args, **kwargs):
return super(RedeemReward, self).post(request, *args, **kwargs)
def form_valid(self, form):
form_class = self.get_form_class()
form = self.get_form(form_class)
#form = self.get_form(self.get_form_class())
#form.save(self.request.POST)
form.save(self.request.POST)
return super(RedeemReward, self).form_valid(form)
def get_success_url(self):
return reverse('reward_confirmation', args=(self.object.reward_slug, self.object.reward_code))
def dispatch(self, *args, **kwargs):
self.object = self.get_object()
return super(RedeemReward, self).dispatch(*args, **kwargs)
表格:
class Redeem_Reward(forms.Form):
quantity = forms.IntegerField(label=_('Quantity'), error_messages={'invalid':'Must be a valid number'})
reward_name = forms.CharField(max_length=50, widget=forms.HiddenInput(), label=_('Reward Name'), error_messages={'invalid':'Invalid reward'})
def clean_quantity(self):
"""
Validate that the user entered a valid number.
"""
return self.cleaned_data['quantity']
def clean_reward_name(self):
"""
Validate that this reward code exists.
"""
try:
existing_reward = Reward.objects.get(reward_name=self.cleaned_data['reward_name'])
except ObjectDoesNotExist:
raise forms.ValidationError(_("The reward you requested does not exist."))
return self.cleaned_data['reward_name']
def save(self, request, *args, **kwargs):
"""
Save all of the required data.
"""
user = request.user
#user_points = Points.objects.filter(affiliate__id=user.id).annotate(total_points=Sum('points'))
user_points = Affiliate.objects.filter(points__affiliate__id=user.id).annotate(total_points=Sum('points'))
user_points = user_points[0].total_points
error_message = {'lookuperror':'You need to provide a valid quantity',
'insufficient_points':"You don't have enough points for this purchase."}
try:
quantity = self.cleaned_data['quantity']
reward_name = self.cleaned_data['reward_name']
rewards = Reward.objects.get(reward_name=reward_name)
except LookupError:
raise Http404
try:
points_cost = -(rewards.reward_cost * quantity)
except ArithmeticError:
raise Http404
quote_price = -(points_cost)
if user_points >= quote_price:
reward_order = Points.objects.create(affiliate=user, reward=rewards, points=points_cost, from_reward=True, from_offer=False, from_referral=False)
status_cost = Status_Code.objects.create(short_name="Pending", name="The order is currently being reviewed", description="The order is in queue")
redeem_order = Redeem.objects.create(affiliate=user, reward=rewards, status_code=status_code)
redeem_details = Redeem_Details.objects.create(redeem=redeem_order, quantity=quantity, quote_price=quote_price)
return HttpResponseRedirect(reverse('reward_confirmation', args=(redeem_details.redeem_code,)))
else:
return render(request, 'reward.html', {'error_message':error_message['insufficient_points']})
最佳答案
您正在将 self.request.POST 传递给表单的 save 方法，该方法设置为期望将请求作为其第一个参数。或者至少有一个 user 属性。如果您改为传入 self.request，您将不会再收到该特定错误。
您在 form_valid 方法中重新实例化 form 很奇怪，该方法接收绑定(bind)表单作为参数。
您从表单的自定义保存方法返回 HttpResponse 对象，这是非标准的。但只要您这样做，就应该从 form_valid 方法中返回它们。
总的来说，是这样的:
def form_valid(self, form):
return form.save(self.request)
关于python - Login_Required Django 不使用 FormView，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19733630/