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Complete invoice call validation feature
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imperosol
@@ -12,165 +12,82 @@
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# OR WITHIN THE LOCAL FILE "LICENSE"
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#
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#
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from datetime import date, datetime, timedelta
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from datetime import timezone as tz
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from datetime import datetime
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from urllib.parse import urlencode
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from django.db.models import Exists, F, OuterRef
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from django.shortcuts import redirect
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from django.utils import timezone
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from django.views.generic import TemplateView
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from dateutil.relativedelta import relativedelta
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from django.contrib.auth.mixins import PermissionRequiredMixin
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from django.contrib.messages.views import SuccessMessageMixin
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from django.db.models import F, Sum
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from django.utils.timezone import localdate, make_aware
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from django.utils.translation import gettext_lazy as _
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from django.views.generic import FormView
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from counter.fields import CurrencyField
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from counter.forms import InvoiceCallForm
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from counter.models import Club, InvoiceCall, Refilling, Selling
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from counter.views.mixins import CounterAdminMixin, CounterAdminTabsMixin
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from counter.models import Refilling, Selling
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from counter.views.mixins import CounterAdminTabsMixin
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class InvoiceCallView(CounterAdminTabsMixin, CounterAdminMixin, TemplateView):
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class InvoiceCallView(
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CounterAdminTabsMixin, PermissionRequiredMixin, SuccessMessageMixin, FormView
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):
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template_name = "counter/invoices_call.jinja"
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current_tab = "invoices_call"
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permission_required = ["counter.view_invoicecall", "counter.change_invoicecall"]
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form_class = InvoiceCallForm
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success_message = _("Invoice calls status has been updated.")
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def dispatch(self, request, *args, **kwargs):
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previous_month = (date.today().replace(day=1) - timedelta(days=1)).strftime(
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"%Y-%m"
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)
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def get_month(self):
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kwargs = self.request.GET or self.request.POST
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if "month" in kwargs:
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return make_aware(datetime.strptime(kwargs["month"], "%Y-%m"))
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return localdate().replace(day=1) - relativedelta(months=1)
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if request.method == "GET" and "month" not in request.GET:
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request.GET = request.GET.copy()
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request.GET["month"] = previous_month
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def get_form_kwargs(self):
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return super().get_form_kwargs() | {"month": self.get_month()}
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if request.method == "POST" and "month" not in request.POST:
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request.POST = request.POST.copy()
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request.POST["month"] = previous_month
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def form_valid(self, form):
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form.save()
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return super().form_valid(form)
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return super().dispatch(request, *args, **kwargs)
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def get(self, request, *args, **kwargs):
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month_str = request.GET.get("month")
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try:
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start_date = datetime.strptime(month_str, "%Y-%m").date()
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today = timezone.now().date().replace(day=1)
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if start_date > today:
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return redirect("counter:invoices_call")
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except ValueError:
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return redirect("counter:invoices_call")
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return super().get(request, *args, **kwargs)
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def get_success_url(self):
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# redirect to the month from which the request is originated
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url = self.request.path
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kwargs = self.request.GET or self.request.POST
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if "month" in kwargs:
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query = urlencode({"month": kwargs["month"]})
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url += f"?{query}"
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return url
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def get_context_data(self, **kwargs):
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"""Add sums to the context."""
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kwargs = super().get_context_data(**kwargs)
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months_with_sellings = list(
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Selling.objects.datetimes("date", "month", order="DESC")
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)
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first_month = months_with_sellings[-1].replace(day=1).date()
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last_month = (date.today().replace(day=1) - timedelta(days=1)).replace(day=1)
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current = last_month
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months = []
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while current >= first_month:
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months.append(current)
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current = (current.replace(day=1) - timedelta(days=1)).replace(day=1)
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kwargs["months"] = months
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month_str = self.request.GET.get("month")
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try:
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start_date = datetime.strptime(self.request.GET["month"], "%Y-%m")
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except ValueError:
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return redirect("counter:invoices_call")
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start_date = start_date.replace(tzinfo=tz.utc)
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end_date = (start_date + timedelta(days=32)).replace(
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day=1, hour=0, minute=0, microsecond=0
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)
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from django.db.models import Case, Sum, When
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kwargs["months"] = Selling.objects.datetimes("date", "month", order="DESC")
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start_date = self.get_month()
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end_date = start_date + relativedelta(months=1)
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kwargs["sum_cb"] = Refilling.objects.filter(
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payment_method="CARD",
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is_validated=True,
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date__gte=start_date,
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date__lte=end_date,
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).aggregate(amount=Sum(F("amount"), default=0))["amount"]
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kwargs["sum_cb"] += Selling.objects.filter(
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payment_method="CARD",
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is_validated=True,
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date__gte=start_date,
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date__lte=end_date,
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).aggregate(amount=Sum(F("quantity") * F("unit_price"), default=0))["amount"]
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kwargs["start_date"] = start_date
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kwargs["sums"] = list(
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Selling.objects.values("club__name")
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.annotate(
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selling_sum=Sum(
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Case(
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When(
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date__gte=start_date,
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date__lt=end_date,
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then=F("unit_price") * F("quantity"),
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),
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output_field=CurrencyField(),
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)
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)
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).aggregate(res=Sum("amount", default=0))["res"]
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kwargs["sum_cb"] += (
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Selling.objects.filter(
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payment_method="CARD",
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is_validated=True,
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date__gte=start_date,
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date__lte=end_date,
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)
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.annotate(amount=F("unit_price") * F("quantity"))
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.aggregate(res=Sum("amount", default=0))["res"]
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)
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kwargs["start_date"] = start_date
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kwargs["invoices"] = (
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Selling.objects.filter(date__gte=start_date, date__lt=end_date)
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.values("club_id", "club__name")
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.annotate(selling_sum=Sum(F("unit_price") * F("quantity")))
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.exclude(selling_sum=None)
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.order_by("-selling_sum")
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)
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club_names = [i["club__name"] for i in kwargs["sums"]]
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clubs = Club.objects.filter(name__in=club_names)
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invoice_calls = InvoiceCall.objects.filter(month=month_str, club__in=clubs)
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invoice_statuses = {ic.club.name: ic.is_validated for ic in invoice_calls}
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kwargs["form"] = InvoiceCallForm(clubs=clubs, month=month_str)
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kwargs["club_data"] = []
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for club in clubs:
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selling_sum = next(
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(
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item["selling_sum"]
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for item in kwargs["sums"]
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if item["club__name"] == club.name
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),
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0,
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)
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kwargs["club_data"].append(
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{
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"club": club,
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"sum": selling_sum,
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"validated": invoice_statuses.get(club.name, False),
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}
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)
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return kwargs
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def post(self, request, *args, **kwargs):
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month_str = request.POST.get("month")
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try:
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start_date = datetime.strptime(month_str, "%Y-%m")
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start_date = date(start_date.year, start_date.month, 1)
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except ValueError:
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return redirect(request.path)
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selling_subquery = Selling.objects.filter(
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club=OuterRef("pk"),
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date__year=start_date.year,
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date__month=start_date.month,
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)
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clubs = Club.objects.filter(Exists(selling_subquery))
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form = InvoiceCallForm(request.POST, clubs=clubs, month=month_str)
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if form.is_valid():
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form.save()
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return redirect(f"{request.path}?month={request.POST.get('month', '')}")
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