la-chariotte/la_chariotte/order/views.py
2023-05-25 16:35:56 +02:00

237 lines
9.1 KiB
Python

from io import BytesIO
from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
from django.http import FileResponse, HttpResponse, HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.template.loader import get_template
from django.urls import reverse, reverse_lazy
from django.utils import timezone
from django.views import generic
from xhtml2pdf import pisa
from .forms import GroupedOrderForm, ItemCreateForm
from .models import GroupedOrder, Item, Order, OrderAuthor, OrderedItem
class IndexView(LoginRequiredMixin, generic.ListView):
"""View showing all the grouped orders organized by the authenticated user"""
template_name = "order/index.html"
context_object_name = "grouped_order_list"
def get_queryset(self):
"""Only grouped orders organized by logged user"""
logged_user_grouped_orders = GroupedOrder.objects.filter(orga=self.request.user)
"""3 grouped_order status : incoming, crossed_deadline, and old"""
now = timezone.now()
today = now.date()
"""Return the 5 most recent old grouped orders"""
old_grouped_orders = logged_user_grouped_orders.filter(
# is_to_be_delivered=False
delivery_date__lt=today
).order_by("-delivery_date")[
:5
] # delivery date < today (delivered)
"""Return all grouped orders, that have crossed their ordering deadline but the delivery date is still to come"""
crossed_dealine_grouped_orders = (
logged_user_grouped_orders.filter(delivery_date__gte=today)
.filter(deadline__lt=now)
.order_by("-delivery_date")
) # delivery date >= today (not delivered) and deadline < today (we cannot order)
"""Return all incoming grouped orders"""
incoming_grouped_orders = logged_user_grouped_orders.filter(
deadline__gte=now
).order_by(
"deadline"
) # dealine >= today (we can still order)
return {
"old_grouped_orders": old_grouped_orders,
"crossed_deadline_grouped_orders": crossed_dealine_grouped_orders,
"incoming_grouped_orders": incoming_grouped_orders,
}
class GroupedOrderDetailView(generic.DetailView):
"""Detail view for a grouped order - possibility to order if it is ongoing - No permissions restriction"""
model = GroupedOrder
template_name = "order/grouped_order_detail.html"
context_object_name = "grouped_order"
class GroupedOrderOverview(UserPassesTestMixin, generic.DetailView):
"""Overview of a grouped order, for the organizer"""
model = GroupedOrder
template_name = "order/grouped_order_overview.html"
context_object_name = "grouped_order"
def test_func(self):
"""Accessible only if the requesting user is the grouped order organizer"""
return self.get_object().orga == self.request.user
def get(self, request, *args, **kwargs):
# Compute grouped order total price before display
self.get_object().compute_total_price()
return super().get(self, request, *args, **kwargs)
def get_context_data(self, **kwargs):
context = super(GroupedOrderOverview, self).get_context_data(**kwargs)
# Add share link to context
context["share_link"] = self.request.build_absolute_uri(
reverse("order:grouped_order_detail", args=(self.get_object().pk,))
)
return context
class GroupedOrderCreateView(LoginRequiredMixin, generic.CreateView):
"""View for creating a new grouped order"""
model = GroupedOrder
form_class = GroupedOrderForm
template_name = "order/grouped_order_create.html"
def get_form_kwargs(self):
kwargs = super().get_form_kwargs()
kwargs["user"] = self.request.user
return kwargs
class GroupedOrderAddItemsView(UserPassesTestMixin, generic.ListView):
"""After creating grouped order, view for adding items to it"""
model = Item
template_name = "order/grouped_order_add_items.html"
queryset = Item.objects.all()
def get_queryset(self):
items = super().get_queryset()
items = items.filter(grouped_order__id=self.kwargs.get("pk"))
return items
def get_context_data(self, **kwargs):
context = super(GroupedOrderAddItemsView, self).get_context_data(**kwargs)
context["grouped_order"] = GroupedOrder.objects.get(id=self.kwargs.get("pk"))
return context
def test_func(self):
"""Accessible only if the requesting user is the grouped order organizer"""
grouped_order_id = self.kwargs.get("pk")
return GroupedOrder.objects.get(pk=grouped_order_id).orga == self.request.user
class ItemCreateView(UserPassesTestMixin, generic.CreateView):
"""CreateView for an item"""
model = Item
form_class = ItemCreateForm
def get_form_kwargs(self):
kwargs = super().get_form_kwargs()
kwargs["grouped_order"] = GroupedOrder.objects.get(id=self.kwargs.get("pk"))
return kwargs
def test_func(self):
"""Accessible only if the requesting user is the grouped order organizer"""
grouped_order_id = self.kwargs.get("pk")
return GroupedOrder.objects.get(pk=grouped_order_id).orga == self.request.user
def order(request, grouped_order_id):
"""Creates an AnonymousUser, and an Order for this GroupedOrder, with related OrderedItems"""
grouped_order = get_object_or_404(GroupedOrder, pk=grouped_order_id)
# get a dict with (quantity_{{item_id}}:{{quantity}})
orders_dict = {
key: value for key, value in request.POST.items() if key.startswith("quantity")
}
first_name = request.POST["first_name"]
last_name = request.POST["last_name"]
phone = request.POST["phone"]
email = request.POST["email"]
author = OrderAuthor.objects.create(
first_name=first_name, last_name=last_name, email=email, phone=phone
)
order = Order.objects.create(author=author, grouped_order=grouped_order)
for key, quantity in orders_dict.items():
if quantity == "":
quantity = 0
if int(quantity) > 0:
item = grouped_order.item_set.get(pk=key.split("_")[1])
OrderedItem.objects.create(nb=quantity, order=order, item=item)
item.compute_ordered_nb()
order.compute_order_articles_nb()
if order.articles_nb == 0:
# Redisplay the order form for this grouped order.
return render(
request,
"order/grouped_order_detail.html",
{
"grouped_order": grouped_order,
"error_message": "Veuillez commander au moins un produit",
},
)
else:
order.compute_order_price()
# Always return an HttpResponseRedirect after successfully dealing
# with POST data. This prevents data from being posted twice if a
# user hits the Back button.
return HttpResponseRedirect(
reverse("order:order_confirm", args=(grouped_order.pk, order.pk))
)
class OrderDetailView(generic.DetailView):
"""Confirmation page after a user orders"""
model = Order
class GroupedOrderSheetMixin:
"""Mixin for grouped order info export (pdf sheet and csv)"""
def get_grouped_order_infos(self, grouped_order_id):
grouped_order = get_object_or_404(GroupedOrder, id=grouped_order_id)
# Get ordered items
items = grouped_order.item_set.filter(ordered_nb__gt=0).order_by("name")
# Get content of orders as a dict {order : [ordered_nb for item 1, ordered_nb for item 2, ...]}
orders_dict = {}
for order in grouped_order.order_set.all():
ordered_values = [] # ordered_values list as value of the dict
for item in items: # items that has actually been ordered
# find the ordered nb of this item in this order
# if no item of the type has been ordered in this order, put 0
value = order.ordered_items.filter(item=item).first()
value = value.nb if value else 0
ordered_values.append(value)
orders_dict[order] = ordered_values # order as key of the dict
return {
"name": grouped_order.name,
"delivery_date": grouped_order.delivery_date,
"items": items,
"orders_dict": orders_dict,
"total_price": grouped_order.total_price,
}
class GroupedOrderSheetView(GroupedOrderOverview, GroupedOrderSheetMixin):
"""View to get a pdf sheet summing up the grouped order for delivery"""
template_name = "order/grouped_order_sheet.html"
def get(self, request, pk):
grouped_order_sheet_info = self.get_grouped_order_infos(pk)
# should_include_prices = True if request.GET.get("with_prices", False) else False
# delivery_sheet_info["include_prices"] = should_include_prices - à ajouter plus tard
template = get_template(self.template_name)
html = template.render(grouped_order_sheet_info)
result = BytesIO()
pdf = pisa.pisaDocument(BytesIO(html.encode("UTF-8")), result)
return HttpResponse(result.getvalue(), content_type="application/pdf")