想要使用 __init__ 方法让登录用户（客户）过滤 Django From 下拉列表

Question

想要使用方法让登录用户（客户）过滤 Django From 下拉列表__init__。但是当提交表单时，继续让这个 Field idexpected a number 但得到 <QueryDict: { error:

class OrderForm(ModelForm):

    class Meta:

        model = Order

        fields = ['contract', 'quantity', 'status']

        

    

    def __init__(self, customer, *args, **kwargs):

        super(OrderForm, self).__init__(*args, **kwargs)

        self.fields['contract'].queryset = Contract.objects.filter(customer=customer)

    

@login_required(login_url='login')

def createOrder(request):

    customer = request.user.customer.id

    form = OrderForm(customer)

    if request.method == 'POST':

        form = OrderForm(request.POST)

        if form.is_valid():

            form = form.save(commit=False)

            form.customer = request.user.customer

            form.save()

            messages.success(request, 'Ticket submitted successfully .')

            return redirect('customer_table')

    context = {'form':form}

    return render(request, 'create-order.html', context)

Answer 1

您可以像这样以形式传递任何属性在视图中：&nbsp; &nbsp;form = OrderForm(request.POST, customer=request.user)通知：&nbsp; def __init__(self, *args, **kwargs):&nbsp; &nbsp; &nbsp; &nbsp; customer = kwargs.pop('user') # allway before super()&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;# and call .pop() not .get() on kwargs, for upper class not evaluate user keyword&nbsp; &nbsp; &nbsp; &nbsp; super(OrderForm, self).__init__(*args, **kwargs)&nbsp; &nbsp; &nbsp; &nbsp; self.fields['contract'].queryset = Contract.objects.filter(customer=customer)

Answer 2

我将工作解决方案总结如下：View.pydef createOrder（请求）：form = OrderForm(request.POST, customer=request.user.customer.id)if request.method == 'POST':&nbsp; &nbsp; form = OrderForm(request.POST, customer=request.user.customer.id)&nbsp; &nbsp; if form.is_valid():&nbsp; &nbsp; &nbsp; &nbsp; form = form.save(commit=False)&nbsp; &nbsp; &nbsp; &nbsp; form.customer = request.user.customer&nbsp; &nbsp; &nbsp; &nbsp; form.save()&nbsp; &nbsp; &nbsp; &nbsp; messages.success(request, 'Ticket submitted successfully .')&nbsp; &nbsp; &nbsp; &nbsp; return redirect('customer_table')context = {'form':form}return render(request, 'create-order.html', context)类 OrderForm(ModelForm):class Meta:&nbsp; &nbsp; model = Order&nbsp; &nbsp; fields = ['contract', 'quantity', 'status']def __init__(self, *args, **kwargs):&nbsp; &nbsp; customer = kwargs.pop('customer')&nbsp; &nbsp; super(OrderForm, self).__init__(*args, **kwargs)&nbsp; &nbsp; self.fields['contract'].queryset = Contract.objects.filter(customer__id=customer)