CODEWITHSUNDEEP
pythondjangopostgresql
smith
smith

Reputation: 373

Deposit amount using Django

Model.py

class Customers(models.Model):

user = models.ForeignKey(User, on_delete=models.CASCADE)

contact = models.BigIntegerField(unique=True)

amount = models.BigIntegerField()

type = models.CharField(max_length=1)`

Form.py

class Deposit_Form(forms.Form):

amount = forms.IntegerField(min_value=200, label="Enter amount u want to deposit")

View.py

class Log_in(TemplateView):

template_name = 'login.html'

def get(self, request, *args, **kwargs):

    Form = Login()

    return render(request, self.template_name, {'form': Form})

def post(self, request):

    username = self.request.POST.get('username').strip()

    password = self.request.POST.get('password').strip()

    if username is None or password is None:

        return HttpResponse({'Doesnt exist'}, status=HTTP_400_BAD_REQUEST)

    user = authenticate(username=username, password=password)

    if not user:

        return HttpResponse({'Invalid candidate '}, status=HTTP_404_NOT_FOUND)

    return redirect('customer_menu')

def customer_menu(request):

if "user_id" in request.session:

    return render(request, 'customer_menu.html')

class Deposit(TemplateView):

template_name = 'deposit.html'

def get(self, request, *args, **kwargs):

    Form = Deposit_Form()

    return render(request, self.template_name, {'form': Form})

@staticmethod

def post(request):

    if "user_id" in request.session:

        data = request.POST.get

        try:

            deposit_amount=data('deposit_amount')

            customer = CustomerModel(

                amount = deposit_amount+amount
            )
            customer.save()

            return HttpResponse('action performed successfully', 500)

        except Exception as e:

            return HttpResponse("failed : {}".format(e), 200)

now i can't understand how can deposit amount, it show error in deposit class post function amount = deposit_amount + amount

Upvotes: 1

Views: 466

Answers (2)

kamilyrb
kamilyrb

Reputation: 2627

If I understand your question correctly, you want to increase your amount field on your Customer model. But firstly you must find your object which you want to update. And you can not directly CustomerModel(amount=deposit_amount+amount). You can use F() function for this. For example: CustomerModel.filter(pk=id).update(amount=F('amount')+deposite_amount)

You can find detail here for detail about F() function

Edit: As another way, you can find your CustomerModel object with get() method and increase your amount field. After, you can save your object. Like that:

customer = CustomerModel.objects.get(pk=id) #you can change query field
customer.amount = customer.amount + data('deposite_amount')
customer.save()

Upvotes: 1

Breno Silva
Breno Silva

Reputation: 301

What is the error?

make sure that this fields can be null

user = models.ForeignKey(User, on_delete=models.CASCADE)

contact = models.BigIntegerField(unique=True)

amount = models.BigIntegerField()

type = models.CharField(max_length=1)`

Upvotes: 0

Related Questions