Add basic sale statistics (closes #57)

src/locale/de/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: 1\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2015-04-15 10:03+0200\n"
-"PO-Revision-Date: 2015-04-15 10:31+0100\n"
+"PO-Revision-Date: 2015-04-17 21:32+0100\n"
 "Last-Translator: Raphael Michel <michel@rami.io>\n"
 "Language-Team: Raphael Michel <michel@rami.io>\n"
 "Language: de\n"
@@ -1113,7 +1113,7 @@ msgstr "Zahlung ausstehend"
 #: pretix/control/templates/pretixcontrol/orders/fragment_order_status.html:6
 #: pretix/presale/templates/pretixpresale/event/fragment_order_status.html:6
 msgid "Paid"
-msgstr "Bezahlt"
+msgstr "bezahlt"
 
 #: pretix/control/templates/pretixcontrol/orders/fragment_order_status.html:10
 #: pretix/presale/templates/pretixpresale/event/fragment_order_status.html:10
@@ -1123,7 +1123,7 @@ msgstr "storniert"
 #: pretix/control/templates/pretixcontrol/orders/fragment_order_status.html:12
 #: pretix/presale/templates/pretixpresale/event/fragment_order_status.html:12
 msgid "Refunded"
-msgstr "Erstattet"
+msgstr "erstattet"
 
 #: pretix/control/templates/pretixcontrol/orders/index.html:11
 msgid "Order total"

src/pretix/control/static/pretixcontrol/less/main.less

@@ -6,6 +6,7 @@
 @import "sb-admin-2.less";
 @import "forms.less";
 @import "flags.less";
+@import "orders.less";
 
 footer {
     text-align: center;

src/pretix/control/templates/pretixcontrol/event/base.html

@@ -81,11 +81,25 @@
         </ul>
     </li>
     <li>
-        <a href="{% url 'control:event.orders' organizer=request.event.organizer.slug event=request.event.slug %}"
+        <a href="#">
-                {% if "event.order" in url_name %}class="active"{% endif %}>
             <i class="fa fa-shopping-cart fa-fw"></i>
             {% trans "Orders" %}
+            <span class="fa arrow"></span>
         </a>
+        <ul class="nav nav-second-level">
+            <li>
+                <a href="{% url 'control:event.orders' organizer=request.event.organizer.slug event=request.event.slug %}"
+                        {% if url_name == "event.orders" or "event.order." in url_name %}class="active"{% endif %}>
+                    {% trans "All orders" %}
+                </a>
+            </li>
+            <li>
+                <a href="{% url 'control:event.orders.overview' organizer=request.event.organizer.slug event=request.event.slug %}"
+                   {% if url_name == "event.orders.overview" %}class="active"{% endif %}>
+                    {% trans "Overview" %}
+                </a>
+            </li>
+        </ul>
     </li>
     {% for nav in nav_event %}
         <li>

src/pretix/control/urls.py

@@ -52,6 +52,7 @@ urlpatterns = [
         url(r'^orders/(?P<code>[0-9A-Z]+)/extend$', orders.OrderExtend.as_view(),
             name='event.order.extend'),
         url(r'^orders/(?P<code>[0-9A-Z]+)/$', orders.OrderDetail.as_view(), name='event.order'),
+        url(r'^orders/overview/$', orders.OverView.as_view(), name='event.orders.overview'),
         url(r'^orders/$', orders.OrderList.as_view(), name='event.orders'),
     ])),
 ]

src/pretix/control/views/orders.py

@@ -1,15 +1,16 @@
 from itertools import groupby
 from django.contrib import messages
 from django.core.urlresolvers import reverse
+from django.db.models import Count
 from django.utils.timezone import now
 from django.utils.translation import ugettext_lazy as _
 from django.http import HttpResponse
 from django.shortcuts import redirect, render
 from django.utils.functional import cached_property
-from django.views.generic import ListView, DetailView
+from django.views.generic import ListView, DetailView, TemplateView
 from pretix.base.forms import VersionedModelForm
 
-from pretix.base.models import Order, Quota
+from pretix.base.models import Order, Quota, OrderPosition
 from pretix.base.signals import register_payment_providers
 from pretix.control.permissions import EventPermissionRequiredMixin
 
@@ -203,3 +204,89 @@ class OrderExtend(OrderView):
     def form(self):
         return ExtendForm(instance=self.order,
                           data=self.request.POST if self.request.method == "POST" else None)
+
+
+class OverView(EventPermissionRequiredMixin, TemplateView):
+    template_name = 'pretixcontrol/orders/overview.html'
+    permission = 'can_view_orders'
+
+    def get_context_data(self, **kwargs):
+        ctx = super().get_context_data()
+        items = self.request.event.items.all().select_related(
+            'category',  # for re-grouping
+        ).prefetch_related(
+            'properties',  # for .get_all_available_variations()
+        ).order_by('category__position', 'category_id', 'name')
+
+        num_total = {
+            (p['item'], p['variation']): p['cnt']
+            for p in OrderPosition.objects.current.filter(
+                order__event=self.request.event
+            ).values('item', 'variation').annotate(cnt=Count('id'))
+        }
+        num_cancelled = {
+            (p['item'], p['variation']): p['cnt']
+            for p in OrderPosition.objects.current.filter(
+                order__event=self.request.event, order__status=Order.STATUS_CANCELLED
+            ).values('item', 'variation').annotate(cnt=Count('id'))
+        }
+        num_refunded = {
+            (p['item'], p['variation']): p['cnt']
+            for p in OrderPosition.objects.current.filter(
+                order__event=self.request.event, order__status=Order.STATUS_REFUNDED
+            ).values('item', 'variation').annotate(cnt=Count('id'))
+        }
+        num_pending = {
+            (p['item'], p['variation']): p['cnt']
+            for p in OrderPosition.objects.current.filter(
+                order__event=self.request.event, order__status__in=(Order.STATUS_PENDING, Order.STATUS_EXPIRED)
+            ).values('item', 'variation').annotate(cnt=Count('id'))
+        }
+        num_paid = {
+            (p['item'], p['variation']): p['cnt']
+            for p in OrderPosition.objects.current.filter(
+                order__event=self.request.event, order__status=Order.STATUS_PAID
+            ).values('item', 'variation').annotate(cnt=Count('id'))
+        }
+
+        for item in items:
+            item.all_variations = sorted(item.get_all_variations(),
+                                         key=lambda vd: vd.ordered_values())
+            for var in item.all_variations:
+                variid = var['variation'].identity if 'variation' in var else None
+                var.num_total = num_total.get((item.identity, variid), 0)
+                var.num_pending = num_pending.get((item.identity, variid), 0)
+                var.num_cancelled = num_cancelled.get((item.identity, variid), 0)
+                var.num_refunded = num_refunded.get((item.identity, variid), 0)
+                var.num_paid = num_paid.get((item.identity, variid), 0)
+            item.has_variations = (len(item.all_variations) != 1
+                                   or not item.all_variations[0].empty())
+            item.num_total = sum(var.num_total for var in item.all_variations)
+            item.num_pending = sum(var.num_pending for var in item.all_variations)
+            item.num_cancelled = sum(var.num_cancelled for var in item.all_variations)
+            item.num_refunded = sum(var.num_refunded for var in item.all_variations)
+            item.num_paid = sum(var.num_paid for var in item.all_variations)
+
+        # Regroup those by category
+        ctx['items_by_category'] = sorted([
+            # a group is a tuple of a category and a list of items
+            (cat, [i for i in items if i.category == cat])
+            for cat in set([i.category for i in items])  # insert categories into a set for uniqueness
+            # a set is unsorted, so sort again by category
+        ], key=lambda group: (group[0].position, group[0].identity) if group[0] is not None else (0, ""))
+        for c in ctx['items_by_category']:
+            c[0].num_total = sum(item.num_total for item in c[1])
+            c[0].num_pending = sum(item.num_pending for item in c[1])
+            c[0].num_cancelled = sum(item.num_cancelled for item in c[1])
+            c[0].num_refunded = sum(item.num_refunded for item in c[1])
+            c[0].num_paid = sum(item.num_paid for item in c[1])
+
+        ctx['total'] = {
+            'num_total': sum(c.num_total for c, i in ctx['items_by_category']),
+            'num_pending': sum(c.num_pending for c, i in ctx['items_by_category']),
+            'num_cancelled': sum(c.num_cancelled for c, i in ctx['items_by_category']),
+            'num_refunded': sum(c.num_refunded for c, i in ctx['items_by_category']),
+            'num_paid': sum(c.num_total for c, i in ctx['items_by_category'])
+        }
+
+        return ctx