Added avg. price per ticket per ticket type.

src/backoffice/templates/ticket_stats.html

@@ -20,6 +20,7 @@
         <th class="text-right">Total Income</th>
         <th class="text-right">Total Cost</th>
         <th class="text-right">Total Profit</th>
+        <th class="text-right">Avg. Ticket Price</th>
      </tr>
     </thead>
     <tbody>
@@ -32,6 +33,7 @@
         <td class="text-right">{{ tt.total_income|floatformat:"2" }}&nbsp;DKK</td>
         <td class="text-right">{{ tt.total_cost|floatformat:"2" }}&nbsp;DKK</td>
         <td class="text-right">{{ tt.total_profit|floatformat:"2" }}&nbsp;DKK</td>
+        <td class="text-right">{{ tt.avg_ticket_price|floatformat:"2" }}&nbsp;DKK</td>
     </tr>
     {% endfor %}
     </tbody>

src/tickets/models.py

@@ -53,12 +53,22 @@ class TicketTypeQuerySet(models.QuerySet):
             .values("total_profit")[:1]
         )
 
+        avg_ticket_price = Subquery(
+            TicketType.objects.annotate(units=Sum(quantity))
+            .annotate(income=Sum(income))
+            .annotate(avg_ticket_price=F("income") / F("units"))
+            .filter(pk=OuterRef("pk"))
+            .values("avg_ticket_price")[:1],
+            output_field=models.DecimalField(),
+        )
+
         return self.annotate(
             shopticket_count=shopticket_count,
             total_units_sold=total_units_sold,
             total_income=total_income,
             total_cost=total_cost,
             total_profit=total_profit,
+            avg_ticket_price=avg_ticket_price,
         ).distinct()