[英]Django returns error on ModelChoiceField with values rendered in runtime
首先想到的是:我有一個經理,負責管理不同的分支機構,每個分支機構都分配有餐廳。 我希望他能夠下訂單並選擇可用於其特定分支機構的餐廳。 我使用帶有靜態值的類來記住哪個管理器正在下訂單。
第二:代碼。 forms.py:
class NewOrderFormManager(Form):
restaurant = forms.ModelChoiceField(queryset=None)
# other fields here
def __init__(self, *args, **kwargs):
super(NewOrderFormManager, self).__init__(*args, **kwargs)
branches = StaticData.get_branches_assigned_to_manager()
self.fields['restaurant'].queryset = Restaurant.objects.filter(branch__in=branches)
views.py:
class NewOrderFromManagerFormView(FormView):
template_name = 'admin_custom/new_order_from_manager_form.html'
form_class = NewOrderFormManager
def get(self, request, *args, **kwargs):
StaticData.find_branches_corresponding_to_manager(request.user)
return super(NewOrderFromManagerFormView, self).get(request, *args, **kwargs)
def post(self, request, *args, **kwargs):
StaticData.find_branches_corresponding_to_manager(request.user)
return super(NewOrderFromManagerFormView, self).post(request, *args, **kwargs)
def form_valid(self, form):
# some code to be executed
儲存類別:
class StaticData:
branches = None
@classmethod
def find_branches_corresponding_to_manager(cls, user):
cls.branches = None
if roles.has_role(user, roles.ROLE_ADMIN):
cls.branches = Branch.objects.all()
elif roles.has_role(user, roles.ROLE_COURIER_MANAGER):
cls.branches = user.couriermanager.branches.all()
@classmethod
def get_branches_assigned_to_manager(cls):
return cls.branches
第三:問題。 在為特定餐廳發布請求時,似乎有些麻煩。 當我訪問clean()
方法時,我會發現一個錯誤,指出我所做的選擇無效,應該選擇另一個。 我account for this purpose and I've checked that I get correct branches when I call
使用超級管理員account for this purpose and I've checked that I get correct branches when I call
StaticData account for this purpose and I've checked that I get correct branches when I call
. The
. The
餐廳simply doesn't appear in
cleaned_data中。 我已經嘗試過挖掘django的文檔和源代碼,但到目前為止都無濟於事。
更新:我已經檢查了服務器日志的輸出,並且看到單擊“提交”按鈕后它會使用GET:
"GET /custom_admin/new_order_from_manager/restaurant=5&price=0.04&phone_number=123123123&street=Gwarna&house_number=1&flat_number=&comment= HTTP/1.1" 200 13887
似乎缺少csfr token
是一個問題,因此我將其添加到了表單中:
<form method="post">
{% csrf_token %}
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