TypeError receive_money() 正好需要 3 个参数（给定 1 个）-Django

Question

我正在尝试将 2 个参数传递给视图，但它给出了此类型错误我不知道是网址问题还是我的重定向问题

//urls.py

urlpatterns = [
    #
    url(r'^receive/[a-zA-Z]+/[0-9]+/$', receive_money)
]

//subtract_money 查看

def subtract_money(request):

    if request.user:
        users = User.objects.all()
        users_ids = users.values_list('id', flat=True)
        users_list = []
        for id in users_ids:
            user = users.get(pk=id)
            if user.username != "ravinkohli" and user.username != request.user.username:
                users_list.append(user)
        if request.POST and request.POST.get('amount'):
            username = request.user.username
            withdraw = request.POST.get('amount')
            wallet = Wallet.objects.get(pk=request.user.userprofile.wallet_id_id)
            # if withdraw > wallet.amount:
            #     return render(request, 'send_money.html', {'error': 'Amount can not be greater than balance','users': users_list})
            wallet.subtract_money(withdraw)
            wallet.save()
            now = datetime.now()
            trans = Transaction(from_name=username, wallet_id=wallet,to=request.POST.get('receiver'), date=now, amount=withdraw)
            trans.save()
            return redirect('/receive/%s/%s/' % (request.POST.get('receiver'), withdraw))
        else:
            return render(request, 'send_money.html',{'users': users_list})
    else:
        return HttpResponseRedirect('/login/?next={}'.format('/subtract_money/'))

//接收方视图

def receive_money(request, username, amount):
    add_amount = amount
    wallet = Wallet.objects.get(username=username)
    wallet.add_money(add_amount)
    wallet.save()
    return redirect('user_profile.html', {'user': request.user,'userprofile': Userprofile.objects.get(user=request.user), 'wallet': wallet})

Answer 1

因为您需要 2 个参数，所以应该是

url(r'^receive/(?P<username>[a-zA-Z]+)/(?P<amount>[0-9]+)/$', receive_money)

Answer 2

尝试使用以下 url，但我认为构建这样的 url 不是个好主意。

urlpatterns = [
    #
    url(r'^receive/(?P<username>[a-zA-Z]+)/(?P<amount>[0-9]+)/$', receive_money)
]

TypeError receive_money() 正好需要 3 个参数（给定 1 个）-Django

TypeError receive_money() takes exactly 3 arguments (1 given)-Django

django

django-urls

django-views