我是django的新手，如何让用户在登录后才能访问主页？

from django.shortcuts import redirect

def login_required(view_func):
    def wrapper(request, *args, **kwargs):
        if not request.user.is_authenticated:
            return redirect('login')  # 如果用户未登录，则重定向到登录页面
        return view_func(request, *args, **kwargs)
    return wrapper

from django.shortcuts import render
from .decorators import login_required

@login_required
def home(request):
    return render(request, 'home.html')

from django.shortcuts import render, redirect
from django.contrib.auth import authenticate, login

def login_view(request):
    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']
        user = authenticate(request, username=username, password=password)
        if user is not None:
            login(request, user)
            return redirect('home')
        else:
            error_message = 'Invalid credentials'
    else:
        error_message = ''
    return render(request, 'login.html', {'error_message': error_message})