add different commands for evaluation

gaehsnitz/management/commands/user_stats.py

@@ -0,0 +1,46 @@
+from django.contrib.auth import get_user_model
+from django.core.management import BaseCommand
+from django.db.models import Sum
+
+from gaehsnitz.models import Drink
+
+User = get_user_model()
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        id_to_name = {d.id: d.name for d in Drink.objects.all()}
+        for user in User.objects.all().order_by("username"):
+            print(f">>> {user.username.capitalize()}")
+            to_pay = user.consumed_drinks_price
+            if to_pay != 0:
+                paid_consumption = user.consumption_list.filter(for_free=False)
+                drink_list = []
+                for drink_dict in paid_consumption.values("drink_id").annotate(amount=Sum("amount")):
+                    name = id_to_name[drink_dict["drink_id"]]
+                    amount = drink_dict["amount"]
+                    drink_list.append(f"{amount}x {name}")
+                drink_list_str = ", ".join(drink_list)
+                print(f"zu zahlen: {to_pay:.2f} € ({drink_list_str})")
+
+            donated = user.donations_made
+            if donated != 0:
+                don_list = [f"{don.date:%d.%m.} {don.amount:.2f} €" for don in user.donations.order_by("date")]
+                don_list_str = ", ".join(don_list)
+                print(f"gespendet: {donated:.2f} € ({don_list_str})")
+
+            paid = user.other_payments_made
+            if paid != 0:
+                pay_list = [f"{pay.purpose} {pay.amount:.2f} €" for pay in user.payments.order_by("date")]
+                pay_list_str = ", ".join(pay_list)
+                print(f"bezahlt: {paid:.2f} € ({pay_list_str})")
+
+            paid_back = user.paybacks_received
+            if paid_back != 0:
+                pb_list = [f"{pb.date:%d.%m.} {pb.amount:.2f} €" for pb in user.paybacks.order_by("date")]
+                pb_list_str = ", ".join(pb_list)
+                print(f"zurückbekommen: {paid_back:.2f} € ({pb_list_str})")
+
+            balance = donated + paid - to_pay - paid_back
+            print(f"==> STAND: {balance:.2f} €")
+            print()