Added a personal dashboard

src/pretix/control/views/dashboards.py

@@ -0,0 +1,187 @@
+from decimal import Decimal
+
+from django.core.urlresolvers import reverse
+from django.db.models import Sum
+from django.dispatch import receiver
+from django.shortcuts import render
+from django.utils import formats
+from django.utils.formats import date_format
+from django.utils.translation import ugettext_lazy as _
+
+from pretix.base.models import Event, Item, Order, OrderPosition
+from pretix.control.signals import (
+    event_dashboard_widgets, user_dashboard_widgets,
+)
+
+NUM_WIDGET = '<div class="numwidget"><span class="num">{num}</span><span class="text">{text}</span></div>'
+
+
+@receiver(signal=event_dashboard_widgets)
+def base_widgets(sender, **kwargs):
+    prodc = Item.objects.filter(
+        event=sender, active=True,
+    ).count()
+
+    tickc = OrderPosition.objects.filter(
+        order__event=sender, item__admission=True
+    ).count()
+
+    paidc = OrderPosition.objects.filter(
+        order__event=sender, item__admission=True,
+        order__status=Order.STATUS_PAID,
+    ).count()
+
+    rev = Order.objects.filter(
+        event=sender,
+        status=Order.STATUS_PAID
+    ).aggregate(sum=Sum('total'))['sum'] or Decimal('0.00')
+
+    return [
+        {
+            'content': NUM_WIDGET.format(num=tickc, text=_('Attendees (ordered)')),
+            'width': 3,
+            'priority': 100,
+            'url': reverse('control:event.orders', kwargs={
+                'event': sender.slug,
+                'organizer': sender.organizer.slug
+            })
+        },
+        {
+            'content': NUM_WIDGET.format(num=paidc, text=_('Attendees (paid)')),
+            'width': 3,
+            'priority': 100,
+            'url': reverse('control:event.orders.overview', kwargs={
+                'event': sender.slug,
+                'organizer': sender.organizer.slug
+            })
+        },
+        {
+            'content': NUM_WIDGET.format(
+                num=formats.localize(rev), text=_('Total revenue ({currency})').format(currency=sender.currency)),
+            'width': 3,
+            'priority': 100,
+            'url': reverse('control:event.orders.overview', kwargs={
+                'event': sender.slug,
+                'organizer': sender.organizer.slug
+            })
+        },
+        {
+            'content': NUM_WIDGET.format(num=prodc, text=_('Active products')),
+            'width': 3,
+            'priority': 100,
+            'url': reverse('control:event.items', kwargs={
+                'event': sender.slug,
+                'organizer': sender.organizer.slug
+            })
+        },
+    ]
+
+
+@receiver(signal=event_dashboard_widgets)
+def quota_widgets(sender, **kwargs):
+    widgets = []
+    for q in sender.quotas.all():
+        status, left = q.availability()
+        widgets.append({
+            'content': NUM_WIDGET.format(num='{}/{}'.format(left, q.size) if q.size is not None else '\u221e',
+                                         text=_('{quota} left').format(quota=q.name)),
+            'width': 3,
+            'priority': 50,
+        })
+    return widgets
+
+
+@receiver(signal=event_dashboard_widgets)
+def shop_state_widget(sender, **kwargs):
+    return [{
+        'width': 3,
+        'priority': 1000,
+        'content': '<div class="shopstate">{t1}<br><span class="{cls}"><span class="fa {icon}"></span> {state}</span>{t2}</div>'.format(
+            t1=_('Your ticket shop is'), t2=_('Click here to change'),
+            state=_('live') if sender.live else _('not yet public'),
+            icon='fa-check-circle' if sender.live else 'fa-times-circle',
+            cls='live' if sender.live else 'off'
+        ),
+        'url': reverse('control:event.live', kwargs={
+            'event': sender.slug,
+            'organizer': sender.organizer.slug
+        })
+    }]
+
+
+def event_index(request, organizer, event):
+    widgets = []
+    for r, result in event_dashboard_widgets.send(sender=request.event):
+        widgets.extend(result)
+    ctx = {
+        'widgets': rearrange(widgets),
+    }
+    return render(request, 'pretixcontrol/event/index.html', ctx)
+
+
+@receiver(signal=user_dashboard_widgets)
+def user_event_widgets(**kwargs):
+    user = kwargs.pop('user')
+    widgets = []
+    events = Event.objects.filter(permitted__id__exact=user.pk).select_related("organizer").order_by('-date_from')
+    for event in events:
+        widgets.append({
+            'content': '<div class="event">{event}<span class="from">{df}</span><span class="to">{dt}</span></div>'.format(
+                event=event.name, df=date_format(event.date_from, 'SHORT_DATE_FORMAT'),
+                dt=date_format(event.date_to, 'SHORT_DATE_FORMAT')
+            ),
+            'width': 3,
+            'priority': 100,
+            'url': reverse('control:event.index', kwargs={
+                'event': event.slug,
+                'organizer': event.organizer.slug
+            })
+        })
+    return widgets
+
+
+@receiver(signal=user_dashboard_widgets)
+def new_event_widgets(**kwargs):
+    return [
+        {
+            'content': '<div class="newevent"><span class="fa fa-plus-circle"></span>{t}</div>'.format(
+                t=_('Create a new event')
+            ),
+            'width': 3,
+            'priority': 50,
+            'url': reverse('control:events.add')
+        }
+    ]
+
+
+def user_index(request):
+    widgets = []
+    for r, result in user_dashboard_widgets.send(request, user=request.user):
+        widgets.extend(result)
+    ctx = {
+        'widgets': rearrange(widgets),
+    }
+    return render(request, 'pretixcontrol/dashboard.html', ctx)
+
+
+def rearrange(widgets: list):
+    """
+    Small and stupid algorithm to arrange widget boxes without too many gaps while respecting
+    priority. Doing this siginificantly better might be *really* hard.
+    """
+    oldlist = sorted(widgets, key=lambda w: -1 * w.get('priority', 1))
+    newlist = []
+    cpos = 0
+    while len(oldlist) > 0:
+        max_prio = max([w.get('priority', 1) for w in oldlist])
+        try:
+            best = max([w for w in oldlist if w.get('priority', 1) == max_prio and cpos + w.get('width', 3) <= 12],
+                       key=lambda w: w.get('width', 3))
+            cpos = (cpos + best.get('width', 3)) % 12
+        except ValueError:  # max() arg is an empty sequence
+            best = [w for w in oldlist if w.get('priority', 1) == max_prio][0]
+            cpos = best.get('width', 3)
+        oldlist.remove(best)
+        newlist.append(best)
+
+    return newlist