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views.py
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views.py
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# pylint: disable=attribute-defined-outside-init
import csv
from django.conf import settings
from django.contrib import messages
from django.db import transaction
from django.db.models import Count
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect
from django.urls import reverse, reverse_lazy
from django.utils import timezone
from django.utils.translation import gettext_lazy as _
from django.views import generic
from oscar.core.loading import get_class, get_model
from oscar.core.utils import slugify
from oscar.views import sort_queryset
VoucherForm = get_class("dashboard.vouchers.forms", "VoucherForm")
VoucherSetForm = get_class("dashboard.vouchers.forms", "VoucherSetForm")
VoucherSetSearchForm = get_class("dashboard.vouchers.forms", "VoucherSetSearchForm")
VoucherSearchForm = get_class("dashboard.vouchers.forms", "VoucherSearchForm")
Voucher = get_model("voucher", "Voucher")
VoucherSet = get_model("voucher", "VoucherSet")
OrderDiscount = get_model("order", "OrderDiscount")
class VoucherListView(generic.ListView):
model = Voucher
context_object_name = "vouchers"
template_name = "oscar/dashboard/vouchers/voucher_list.html"
form_class = VoucherSearchForm
paginate_by = settings.OSCAR_DASHBOARD_ITEMS_PER_PAGE
def get_queryset(self):
self.search_filters = []
qs = self.model._default_manager.all()
qs = qs.annotate(num_offers=Count("offers", distinct=True))
qs = sort_queryset(
qs,
self.request,
["num_basket_additions", "num_orders", "num_offers", "date_created"],
"-date_created",
)
# If form is not submitted, perform a default filter, and return early
if not self.request.GET:
self.form = self.form_class(initial={"in_set": False})
# This form is exactly the same as the other one, apart from having
# fields with different IDs, so that they are unique within the page
# (non-unique field IDs also break Select2)
self.advanced_form = self.form_class(
initial={"in_set": False}, auto_id="id_advanced_%s"
)
self.search_filters.append(_("Not in a set"))
return qs.filter(voucher_set__isnull=True)
self.form = self.form_class(self.request.GET)
# This form is exactly the same as the other one, apart from having
# fields with different IDs, so that they are unique within the page
# (non-unique field IDs also break Select2)
self.advanced_form = self.form_class(self.request.GET, auto_id="id_advanced_%s")
if not all([self.form.is_valid(), self.advanced_form.is_valid()]):
return qs
name = self.form.cleaned_data["name"]
code = self.form.cleaned_data["code"]
offer_name = self.form.cleaned_data["offer_name"]
is_active = self.form.cleaned_data["is_active"]
in_set = self.form.cleaned_data["in_set"]
has_offers = self.form.cleaned_data["has_offers"]
if name:
qs = qs.filter(name__icontains=name)
self.search_filters.append(_('Name matches "%s"') % name)
if code:
qs = qs.filter(code=code)
self.search_filters.append(_('Code is "%s"') % code)
if offer_name:
qs = qs.filter(offers__name__icontains=offer_name)
self.search_filters.append(_('Offer name matches "%s"') % offer_name)
if is_active is not None:
now = timezone.now()
if is_active:
qs = qs.filter(start_datetime__lte=now, end_datetime__gte=now)
self.search_filters.append(_("Is active"))
else:
qs = qs.filter(end_datetime__lt=now)
self.search_filters.append(_("Is inactive"))
if in_set is not None:
qs = qs.filter(voucher_set__isnull=not in_set)
self.search_filters.append(_("In a set") if in_set else _("Not in a set"))
if has_offers is not None:
qs = qs.filter(offers__isnull=not has_offers).distinct()
self.search_filters.append(
_("Has offers") if has_offers else _("Has no offers")
)
return qs
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["form"] = self.form
ctx["advanced_form"] = self.advanced_form
ctx["search_filters"] = self.search_filters
return ctx
class VoucherCreateView(generic.CreateView):
model = Voucher
template_name = "oscar/dashboard/vouchers/voucher_form.html"
form_class = VoucherForm
success_url = reverse_lazy("dashboard:voucher-list")
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["title"] = _("Create voucher")
return ctx
def get_initial(self):
initial = super().get_initial()
initial["start_datetime"] = timezone.now()
return initial
@transaction.atomic()
def form_valid(self, form):
response = super().form_valid(form)
self.object.offers.add(*form.cleaned_data["offers"])
return response
def get_success_url(self):
messages.success(self.request, _("Voucher created"))
return super().get_success_url()
class VoucherStatsView(generic.DetailView):
model = Voucher
template_name = "oscar/dashboard/vouchers/voucher_detail.html"
context_object_name = "voucher"
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
discounts = OrderDiscount.objects.filter(voucher_id=self.object.id)
discounts = discounts.order_by("-order__date_placed")
ctx["discounts"] = discounts
return ctx
class VoucherUpdateView(generic.UpdateView):
template_name = "oscar/dashboard/vouchers/voucher_form.html"
context_object_name = "voucher"
model = Voucher
form_class = VoucherForm
success_url = reverse_lazy("dashboard:voucher-list")
def dispatch(self, request, *args, **kwargs):
voucher_set = self.get_object().voucher_set
if voucher_set is not None:
messages.warning(
request, _("The voucher can only be edited as part of its set")
)
return redirect("dashboard:voucher-set-update", pk=voucher_set.pk)
return super().dispatch(request, *args, **kwargs)
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["title"] = self.object.name
return ctx
def get_initial(self):
initial = super().get_initial()
initial["offers"] = self.object.offers.all()
return initial
@transaction.atomic()
def form_valid(self, form):
response = super().form_valid(form)
self.object.offers.set(form.cleaned_data["offers"])
return response
def get_success_url(self):
messages.success(self.request, _("Voucher updated"))
return super().get_success_url()
class VoucherDeleteView(generic.DeleteView):
model = Voucher
template_name = "oscar/dashboard/vouchers/voucher_delete.html"
context_object_name = "voucher"
@transaction.atomic
def delete(self, request, *args, **kwargs):
response = super().delete(request, *args, **kwargs)
if self.object.voucher_set is not None:
self.object.voucher_set.update_count()
return response
def post(self, request, *args, **kwargs):
return self.delete(request, *args, **kwargs)
def get_success_url(self):
messages.warning(self.request, _("Voucher deleted"))
if self.object.voucher_set is not None:
return reverse(
"dashboard:voucher-set-detail",
kwargs={"pk": self.object.voucher_set.pk},
)
else:
return reverse("dashboard:voucher-list")
class VoucherSetCreateView(generic.CreateView):
model = VoucherSet
template_name = "oscar/dashboard/vouchers/voucher_set_form.html"
form_class = VoucherSetForm
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["title"] = _("Create voucher set")
return ctx
def get_initial(self):
initial = super().get_initial()
initial["start_datetime"] = timezone.now()
return initial
def get_success_url(self):
messages.success(self.request, _("Voucher set created"))
return reverse("dashboard:voucher-set-list")
class VoucherSetUpdateView(generic.UpdateView):
template_name = "oscar/dashboard/vouchers/voucher_set_form.html"
model = VoucherSet
context_object_name = "voucher_set"
form_class = VoucherSetForm
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["title"] = self.object.name
return ctx
def get_initial(self):
initial = super().get_initial()
# All vouchers in the set have the same "usage" and "offers", so we use
# the first one
voucher = self.object.vouchers.first()
if voucher is not None:
initial["usage"] = voucher.usage
initial["offers"] = voucher.offers.all()
return initial
def get_success_url(self):
messages.success(self.request, _("Voucher updated"))
return reverse("dashboard:voucher-set-detail", kwargs={"pk": self.object.pk})
class VoucherSetDetailView(generic.ListView):
model = Voucher
context_object_name = "vouchers"
template_name = "oscar/dashboard/vouchers/voucher_set_detail.html"
form_class = VoucherSetSearchForm
paginate_by = 50
def dispatch(self, request, *args, **kwargs):
self.voucher_set = get_object_or_404(VoucherSet, pk=kwargs["pk"])
return super().dispatch(request, *args, **kwargs)
def get_queryset(self):
self.search_filters = []
qs = self.model.objects.filter(voucher_set=self.voucher_set).order_by(
"-date_created"
)
qs = sort_queryset(
qs,
self.request,
["num_basket_additions", "num_orders", "date_created"],
"-date_created",
)
# If form not submitted, return early
is_form_submitted = "name" in self.request.GET or "code" in self.request.GET
if not is_form_submitted:
self.form = self.form_class()
return qs
self.form = self.form_class(self.request.GET)
if not self.form.is_valid():
return qs
data = self.form.cleaned_data
if data["code"]:
qs = qs.filter(code__icontains=data["code"])
self.search_filters.append(_('Code matches "%s"') % data["code"])
return qs
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["voucher_set"] = self.voucher_set
ctx["form"] = self.form
ctx["search_filters"] = self.search_filters
return ctx
class VoucherSetListView(generic.ListView):
model = VoucherSet
context_object_name = "voucher_sets"
template_name = "oscar/dashboard/vouchers/voucher_set_list.html"
paginate_by = settings.OSCAR_DASHBOARD_ITEMS_PER_PAGE
def get_queryset(self):
qs = self.model.objects.all().order_by("-date_created")
qs = sort_queryset(
qs,
self.request,
["num_basket_additions", "num_orders", "date_created"],
"-date_created",
)
return qs
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
description = _("Voucher sets")
ctx["description"] = description
return ctx
class VoucherSetDownloadView(generic.DetailView):
template_name = "oscar/dashboard/vouchers/voucher_set_form.html"
model = VoucherSet
form_class = VoucherSetForm
def get(self, request, *args, **kwargs):
voucher_set = self.get_object()
response = HttpResponse(content_type="text/csv")
response["Content-Disposition"] = 'attachment; filename="%s.csv"' % slugify(
voucher_set.name
)
writer = csv.writer(response)
for code in voucher_set.vouchers.values_list("code", flat=True):
writer.writerow([code])
return response
class VoucherSetDeleteView(generic.DeleteView):
model = VoucherSet
template_name = "oscar/dashboard/vouchers/voucher_set_delete.html"
context_object_name = "voucher_set"
def get_success_url(self):
messages.warning(self.request, _("Voucher set deleted"))
return reverse("dashboard:voucher-set-list")