Django - View accounts.decorators.wrapper_function 没有返回 HttpResponse 对象。它返回 None 而不是

Question

我正在构建一个客户管理应用程序并且构建了几个装饰器。但是当我运行应用程序时出现此错误

The view accounts.decorators.wrapper_function didn't return an HttpResponse object. It returned None instead.

装饰器.py

from django.http import HttpResponse
from django.shortcuts import redirect


def unauthenticated_user(view_func):
    def wrapper_func(request, *args, **kwargs):
        if request.user.is_authenticated:
            return redirect('home')
        elif request.user.is_authenticated == None:
            return redirect('login')
        else:
            return view_func(request, *args, **kwargs)

    return wrapper_func


def allowed_users(allowed_roles=[]):
    def decorator(view_func):
        def wrapper_func(request, *args, **kwargs):

            group = None
            if request.user.groups.exists():
                group = request.user.groups.all()[0].name

            if group in allowed_roles:
                return view_func(request, *args, **kwargs)
            else:
                return HttpResponse('You are not authorized to view this page')
        return wrapper_func
    return decorator


def admin_only(view_func):
    def wrapper_function(request, *args, **kwargs):
        group = None
        if request.user.groups.exists():
            group = request.user.groups.all()[0].name

        if group == 'customer':
            return redirect('user-page')

        if group == 'admin':
            return view_func(request, *args, **kwargs)

    return wrapper_function

和我的views.py

from django.shortcuts import render, redirect
from django.http import HttpResponse
from django.forms import inlineformset_factory
from django.contrib.auth.forms import UserCreationForm

from django.contrib.auth import authenticate, login, logout

from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import Group

from .models import *
from .forms import OrderForm, CreateUserForm, CustomerForm
from .filters import OrderFilter
from .decorators import unauthenticated_user, allowed_users, admin_only

# Create your views here.
@unauthenticated_user
def registerPage(request):
    form = CreateUserForm()
    if request.method == 'POST':
        form = CreateUserForm(request.POST)
        if form.is_valid():
            user =form.save()
            username = form.cleaned_data.get('username')


            messages.success(request,'Account was created for '+ username)
            return redirect('login')

    context = {'form':form}
    return render(request,'accounts/register.html',context)

@unauthenticated_user
def loginPage(request):
    if request.method == 'POST':
        username=request.POST.get('username')
        password=request.POST.get('password')
        user = authenticate(request,username=username, password=password)
        if user is not None:
            login(request,user)
            return redirect('home')
        else:
            messages.info(request, 'Username or password or incorrect')
    context = {}
    return render(request,'accounts/login.html',context)


def logoutUser(request):
    logout(request)
    return redirect('login')

@admin_only
@login_required(login_url='login')
def home(request):
    orders = Order.objects.all()
    customers = Customer.objects.all()

    total_customer = customers.count()
    total_orders = orders.count()
    delivered = orders.filter(status='Delivered').count()
    pending  = orders.filter(status='Pending').count()


    context = {'orders':orders,'customers':customers,'total_orders':total_orders,'delivered':delivered,'pending':pending}
    return render(request, 'accounts/dashboard.html',context)

@login_required(login_url='login')
@allowed_users(allowed_roles=['customer'])
def userPage(request):
    orders = request.user.customer.order_set.all()

    total_orders = orders.count()
    delivered = orders.filter(status='Delivered').count()
    pending  = orders.filter(status='Pending').count()

    context = {'orders':orders,'total_orders':total_orders,'delivered':delivered,'pending':pending}
    return render(request, 'accounts/user.html',context)

@login_required(login_url='login')
@allowed_users(allowed_roles=['customer'])
def accountSettings(request):
    customer = request.user.customer
    form = CustomerForm(instance=customer)

    if request.method == 'POST':
        form = CustomerForm(request.POST, request.FILES,instance=customer)
        if form.is_valid():
            form.save()


    context = {'form':form}
    return render(request, 'accounts/account_settings.html', context)

@login_required(login_url='login')
@allowed_users(allowed_roles=['admin'])
def product(request):
    products = Product.objects.all()
    return render(request, 'accounts/products.html', {'products': products})

@login_required(login_url='login')
@allowed_users(allowed_roles=['admin'])
def customer(request,pk_test):
    customer = Customer.objects.get(id=pk_test)

    orders = customer.order_set.all()
    order_count = orders.count()
    myFilter = OrderFilter(request.GET, queryset=orders)
    orders = myFilter.qs
    context = {'customer':customer,'orders':orders,'order_count':order_count,'myFilter':myFilter}

    return render(request, 'accounts/customer.html',context)

@login_required(login_url='login')
@allowed_users(allowed_roles=['admin'])
def createOrder(request,pk):
    OrderFormSet = inlineformset_factory(Customer,Order, fields=('product', 'status'),extra=10)
    customer = Customer.objects.get(id=pk)
    #form = OrderForm(initial={'customer':customer})
    formset = OrderFormSet(queryset=Order.objects.none(),instance=customer)
    if request.method == 'POST':
        #print('Printing POST',request.POST)
        #form = OrderForm(request.POST)
        formset = OrderFormSet(request.POST,instance=customer)
        if formset.is_valid():
            formset.save()
            return redirect('/')



    context = {'formset':formset}
    return render(request,'accounts/order_form.html',context)


@login_required(login_url='login')
@allowed_users(allowed_roles=['admin'])
def updateOrder(request,pk):
    order = Order.objects.get(id=pk)
    form = OrderForm(instance=order)
    context = {'form':form}
    if request.method == 'POST':
        #print('Printing POST',request.POST)
        form = OrderForm(request.POST,instance=order)
        if form.is_valid():
            form.save()
            return redirect('/')
    return render(request,'accounts/order_form.html',context)


@login_required(login_url='login')
@allowed_users(allowed_roles=['admin'])
def deleteOrder(request,pk):
    order = Order.objects.get(id=pk)
    if request.method == 'POST':
        order.delete()
        return redirect('/')
    context={'item':order}
    return render(request, 'accounts/delete.html',context)

Output when i run my local server

这是我的第一个问题，如果我没有提供任何对回答此问题有用的信息，请告诉我

Answer 1

我有同样的错误，我是如何解决的？实际上这是一个愚蠢的错误。首先。转到管理员，转到用户而不是组部分，您会看到您没有为该客户分配任何组。根据您的选择分配客户组或管理组。

这是我的错误，我没有分配任何组。我希望你在那里犯了同样的错误。