views.py

from django.shortcuts import render
from django.http import HttpResponse
from librehatti.bills.models import QuotedOrder, QuotedItem
from librehatti.catalog.models import *
from django.contrib.auth.models import User
import useraccounts

def proforma(request):
    quoted_order = QuotedOrder.objects.get(id=quote_buyer_id)
    quoted_item = QuotedItem.objects.get(id=quote_buyer_id)
    total_cost = QuotedItem.objects.filter(id=quote_buyer_id).aggregate(Sum('quoted_price'))
    return render(request, 'p_bill.html',{ ' quoted_order' : quoted_order, 
                  'quoted_item' : quoted_item , 'total_cost': total_cost  } )