Django - 装饰器限制“员工”

Question

我的目标是限制“员工组”的访问权限，我试图用 decorators.py 来做到这一点，但是当我这样做时，它会限制我注册的每个用户，而不仅仅是员工。 当我使用管理员登录时，它给了我“你没有被授权”，这应该只适用于应该只看到一个平台模板的“员工”。

这里的图片也是我的管理页面。

核心/装饰器.py

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

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

            group = None
            if request.user.groups.exists():
                group = request.user.groups.all()

            if group in allowed_roles:
                return view_func(request, *args, **kwargs)

            else:
                return HttpResponse(' You are not Authorized!')
        return wrapper_func
    return decorator

核心/views.py

from django.shortcuts import render, get_object_or_404
from django.contrib.auth.models import User
from django.contrib.auth.mixins import LoginRequiredMixin
from django.views.generic.list import ListView
from .decorators import allowed_user

# Create your views here.
from quiz.models import Questions
from jobs.models import post_job




@allowed_user(allowed_roles=['Admin, Students'])
def homepage(request):
    return render(request, 'core/homepage.html')

 @allowed_user(allowed_roles=['Admin, Students'])
def userProfileView(request, username):
    user= get_object_or_404(User, username=username)
    jobs = post_job.objects.all()
    categories = Questions.CAT_CHOICES
    scores = []
    for category in categories:
        score = Questions.objects.filter(category=category[0], student= user).count()
        scores.append(score)

    context = {

    'user' : user, 'categories_scores' : zip( categories,scores),
    'jobs': jobs



    }
    return render(request, 'core/user_profile.html' , context)



class UserList(LoginRequiredMixin, ListView):
    model = User
    template_name = 'core/users.html'

帐户/views.py

from django.shortcuts import render, HttpResponseRedirect
from django.contrib.auth import authenticate, login
from django.contrib.auth.models import User
from accounts.forms import FormRegistrazione
from .decorators import allowed_user

# Create your views here.

def registrazioneView(request):
    if request.method == "POST":
        form = FormRegistrazione(request.POST)
        if form.is_valid():
            username = form.cleaned_data["username"]
            email = form.cleaned_data["email"]
            password = form.cleaned_data["password1"]
            User.objects.create_user(username=username, password=password, email=email)
            user = authenticate(username=username, password=password)
            login(request, user)
            return HttpResponseRedirect("/")


    else:
        form = FormRegistrazione()
    context = {"form": form}
    return render(request, 'accounts/registrazione.html', context)

Answer 1

您的allowed_roles是字符串，因此 allowed_roles 中的group in allowed_roles将始终为 false。 特别是因为group是Group的QuerySet ，所以是一个集合。 该集合可以包含零个、一个或多个组。

您可以使用request.user.groups.filter(name__in=allowed_roles).exists()检查组是否存在，因此装饰器如下所示：

from functools import wraps

def allowed_user(allowed_roles=()):
    def decorator(view_func):
        @wraps(view_func)
        def wrapper_func(request, *args, **kwargs):
            if request.user.groups.filter(name__in=allowed_roles).exists():
                return view_func(request, *args, **kwargs)
            else:
                return HttpResponse('You are not Authorized!')
        return wrapper_func
    return decorator