Add daily and cumulative attendee graphs to the order statistics page (#5792)

The order statistics page previously only showed order-based graphs. This change
adds attendee-based daily and cumulative graphs.

src/pretix/plugins/statistics/static/pretixplugins/statistics/statistics.js

@@ -19,6 +19,30 @@ $(function () {
         fillOpacity: 0.3,
         behaveLikeLine: true
     });
+    new Morris.Area({
+        element: 'abd_chart',
+        data: JSON.parse($("#abd-data").html()),
+        xkey: 'date',
+        ykeys: ['ordered', 'paid'],
+        labels: [gettext('Attendees (ordered)'), gettext('Attendees (paid)')],
+        lineColors: ['#3b1c4a', '#50a167'],
+        smooth: false,
+        resize: true,
+        fillOpacity: 0.3,
+        behaveLikeLine: true
+    });
+    new Morris.Area({
+        element: 'abt_chart',
+        data: JSON.parse($("#abt-data").html()),
+        xkey: 'date',
+        ykeys: ['ordered', 'paid'],
+        labels: [gettext('Attendees (ordered)'), gettext('Attendees (paid)')],
+        lineColors: ['#3b1c4a', '#50a167'],
+        smooth: false,
+        resize: true,
+        fillOpacity: 0.3,
+        behaveLikeLine: true
+    });
     new Morris.Area({
         element: 'rev_chart',
         data: JSON.parse($("#rev-data").html()),

src/pretix/plugins/statistics/templates/pretixplugins/statistics/index.html

@@ -31,6 +31,46 @@
                 </p>
             </div>
         </div>
+        <div class="panel panel-default">
+            <div class="panel-heading">
+                <h3 class="panel-title">{% trans "Attendees by day" %}</h3>
+            </div>
+            <div class="panel-body">
+                <div id="abd_chart" class="chart"></div>
+                <p class="help-block">
+                    <small>
+                        {% blocktrans trimmed %}
+                            Attendees in orders paid in multiple instalments are shown using the date of the
+                            final payment. Order dates reflect when the order was first placed; attendees added
+                            later via additional order positions still use the original order date. Attendees in
+                            placed orders include those from all order states (pending, paid, cancelled, and
+                            expired); attendees in paid orders include only those from paid orders and exclude
+                            those from cancelled orders.
+                        {% endblocktrans %}
+                    </small>
+                </p>
+            </div>
+        </div>
+        <div class="panel panel-default">
+            <div class="panel-heading">
+                <h3 class="panel-title">{% trans "Attendees by time" %}</h3>
+            </div>
+            <div class="panel-body">
+                <div id="abt_chart" class="chart"></div>
+                <p class="help-block">
+                    <small>
+                        {% blocktrans trimmed %}
+                            Attendees in orders paid in multiple instalments are shown using the date of the
+                            final payment. Order dates reflect when the order was first placed; attendees added
+                            later via additional order positions still use the original order date. Attendees in
+                            placed orders include those from all order states (pending, paid, cancelled, and
+                            expired); attendees in paid orders include only those from paid orders and exclude
+                            those from cancelled orders.
+                        {% endblocktrans %}
+                    </small>
+                </p>
+            </div>
+        </div>
         <div class="panel panel-default">
             <div class="panel-heading">
                 <h3 class="panel-title">{% trans "Revenue over time" %}</h3>
@@ -177,6 +217,8 @@
             </div>
         {% endif %}
         <script type="application/json" id="obd-data">{{ obd_data|escapejson }}</script>
+        <script type="application/json" id="abd-data">{{ abd_data|escapejson }}</script>
+        <script type="application/json" id="abt-data">{{ abt_data|escapejson }}</script>
         <script type="application/json" id="rev-data">{{ rev_data|escapejson }}</script>
         <script type="application/json" id="obp-data">{{ obp_data|escapejson }}</script>
         <script type="application/text" id="currency">{{ request.event.currency }}</script>

src/pretix/plugins/statistics/views.py

@@ -128,6 +128,52 @@ class IndexView(EventPermissionRequiredMixin, ChartContainingView, TemplateView)
             ctx['obd_data'] = json.dumps(data)
             cache.set('statistics_obd_data' + ckey, ctx['obd_data'])
 
+        # Attendees by day/time
+        ctx['abd_data'] = cache.get('statistics_abd_data' + ckey)
+        ctx['abt_data'] = cache.get('statistics_abt_data' + ckey)
+        if not ctx['abd_data'] or not ctx['abt_data']:
+            opqs = OrderPosition.all.filter(order__event=self.request.event, item__admission=True).annotate(
+                payment_date=Subquery(op_date, output_field=DateTimeField())
+            )
+            if subevent:
+                opqs = opqs.filter(subevent=subevent)
+
+            ordered_by_day = {}
+            for p in opqs.values('order__datetime'):
+                day = p['order__datetime'].astimezone(tz).date()
+                ordered_by_day[day] = ordered_by_day.get(day, 0) + 1
+
+            paid_by_day = {}
+            for p in opqs.filter(payment_date__isnull=False, canceled=False, order__status=Order.STATUS_PAID).values('payment_date'):
+                day = p['payment_date'].astimezone(tz).date()
+                paid_by_day[day] = paid_by_day.get(day, 0) + 1
+
+            day_data = []
+            time_data = []
+            for d in dateutil.rrule.rrule(
+                    dateutil.rrule.DAILY,
+                    dtstart=min(ordered_by_day.keys()) if ordered_by_day else datetime.date.today(),
+                    until=max(
+                        max(ordered_by_day.keys() if paid_by_day else [datetime.date.today()]),
+                        max(paid_by_day.keys() if paid_by_day else [datetime.date(1970, 1, 1)])
+                    )):
+                d = d.date()
+                day_data.append({
+                    'date': d.strftime('%Y-%m-%d'),
+                    'ordered': ordered_by_day.get(d, 0),
+                    'paid': paid_by_day.get(d, 0)
+                })
+                time_data.append({
+                    'date': d.strftime('%Y-%m-%d'),
+                    'ordered': (time_data[-1]["ordered"] if time_data else 0) + ordered_by_day.get(d, 0),
+                    'paid': (time_data[-1]["paid"] if time_data else 0) + paid_by_day.get(d, 0)
+                })
+
+            ctx['abd_data'] = json.dumps(day_data)
+            ctx['abt_data'] = json.dumps(time_data)
+            cache.set('statistics_abd_data' + ckey, ctx['abd_data'])
+            cache.set('statistics_abt_data' + ckey, ctx['abt_data'])
+
         # Orders by product
         ctx['obp_data'] = cache.get('statistics_obp_data' + ckey)
         if not ctx['obp_data']: