app/stiftung/management/commands/backfill_quarterly_payments.py

@@ -0,0 +1,209 @@
+"""
+Backfill quarterly support payments for all active destinatare.
+
+Companion to the STI-107 hotfix that decoupled Q1/Q3 payments from the
+study proof. Run once after the deploy to make sure each active
+destinatare has a `DestinataerUnterstuetzung` record for the requested
+quarter, so the existing payment pipeline picks them up at the due date.
+
+Usage:
+    python manage.py backfill_quarterly_payments --jahr 2026 --quartal 3
+    python manage.py backfill_quarterly_payments --jahr 2026 --quartal 3 --dry-run
+    python manage.py backfill_quarterly_payments --jahr 2026 --quartal 3 --force
+
+`--force` skips the payment-readiness check (`is_complete_for_payment`)
+and creates the payment as soon as the destinatare has IBAN and amount —
+intended for one-off catch-up like Q3/2026 where the staff did not yet
+record the income/assets review for every entry.
+"""
+
+from datetime import date
+
+from django.core.management.base import BaseCommand
+from django.db import transaction
+from django.utils import timezone
+
+from stiftung.models import (
+    Destinataer,
+    DestinataerUnterstuetzung,
+    StiftungsKonto,
+    VierteljahresNachweis,
+)
+from stiftung.views.unterstuetzungen import create_quarterly_support_payment
+
+
+PAYMENT_DUE_DATES = {
+    1: lambda jahr: date(jahr - 1, 12, 15),
+    2: lambda jahr: date(jahr, 3, 15),
+    3: lambda jahr: date(jahr, 6, 15),
+    4: lambda jahr: date(jahr, 9, 15),
+}
+
+
+class Command(BaseCommand):
+    help = "Create quarterly support payments for all active destinatare for a given Jahr/Quartal."
+
+    def add_arguments(self, parser):
+        parser.add_argument("--jahr", type=int, required=True, help="Jahr, z.B. 2026")
+        parser.add_argument("--quartal", type=int, required=True, choices=[1, 2, 3, 4])
+        parser.add_argument(
+            "--dry-run",
+            action="store_true",
+            help="Nichts speichern, nur anzeigen, was passieren würde.",
+        )
+        parser.add_argument(
+            "--force",
+            action="store_true",
+            help=(
+                "Zahlung anlegen, auch wenn der Vierteljahresnachweis noch nicht "
+                "ausgefüllt ist (überspringt is_complete_for_payment-Check)."
+            ),
+        )
+
+    def handle(self, *args, **options):
+        jahr = options["jahr"]
+        quartal = options["quartal"]
+        dry_run = options["dry_run"]
+        force = options["force"]
+
+        payment_due_date = PAYMENT_DUE_DATES[quartal](jahr)
+        mode = "DRY RUN" if dry_run else "LIVE"
+        self.stdout.write(
+            self.style.WARNING(
+                f"[{mode}] Backfill Q{quartal}/{jahr} — Zahlungsfälligkeit {payment_due_date.strftime('%d.%m.%Y')}"
+                + (" — FORCE-Modus aktiv" if force else "")
+            )
+        )
+
+        eligible = Destinataer.objects.filter(
+            aktiv=True,
+            vierteljaehrlicher_betrag__isnull=False,
+            vierteljaehrlicher_betrag__gt=0,
+        ).exclude(iban__isnull=True).exclude(iban="")
+
+        total = eligible.count()
+        self.stdout.write(f"Aktive Destinatäre mit Betrag und IBAN: {total}")
+
+        created = 0
+        updated = 0
+        skipped_existing = 0
+        skipped_incomplete = []
+        skipped_no_konto = []
+        errors = []
+
+        for destinataer in eligible.order_by("nachname", "vorname"):
+            try:
+                with transaction.atomic():
+                    result = self._process_destinataer(
+                        destinataer,
+                        jahr=jahr,
+                        quartal=quartal,
+                        payment_due_date=payment_due_date,
+                        force=force,
+                        dry_run=dry_run,
+                    )
+
+                if result == "created":
+                    created += 1
+                elif result == "updated":
+                    updated += 1
+                elif result == "exists":
+                    skipped_existing += 1
+                elif result == "incomplete":
+                    skipped_incomplete.append(destinataer)
+                elif result == "no_konto":
+                    skipped_no_konto.append(destinataer)
+            except Exception as exc:
+                errors.append((destinataer, str(exc)))
+
+        self.stdout.write("")
+        self.stdout.write(self.style.SUCCESS(f"Neu angelegt: {created}"))
+        self.stdout.write(f"Bereits vorhandene (aktualisiert): {updated}")
+        self.stdout.write(f"Bereits vorhandene (unverändert): {skipped_existing}")
+
+        if skipped_incomplete:
+            self.stdout.write(
+                self.style.WARNING(
+                    f"\nUnvollständige Nachweise (kein Eink./Verm. bestätigt) — {len(skipped_incomplete)}:"
+                )
+            )
+            for d in skipped_incomplete:
+                self.stdout.write(f"  - {d.get_full_name()} (ID {d.id})")
+
+        if skipped_no_konto:
+            self.stdout.write(
+                self.style.WARNING(
+                    f"\nKein Auszahlungskonto verfügbar — {len(skipped_no_konto)}:"
+                )
+            )
+            for d in skipped_no_konto:
+                self.stdout.write(f"  - {d.get_full_name()} (ID {d.id})")
+
+        if errors:
+            self.stdout.write(self.style.ERROR(f"\nFehler — {len(errors)}:"))
+            for d, msg in errors:
+                self.stdout.write(f"  - {d.get_full_name()}: {msg}")
+
+    def _process_destinataer(
+        self, destinataer, *, jahr, quartal, payment_due_date, force, dry_run
+    ):
+        nachweis, _nachweis_created = VierteljahresNachweis.objects.get_or_create(
+            destinataer=destinataer,
+            jahr=jahr,
+            quartal=quartal,
+            defaults={"studiennachweis_erforderlich": True},
+        )
+
+        if nachweis.get_related_support_payment():
+            return "exists"
+
+        if not force and not nachweis.is_complete_for_payment():
+            return "incomplete"
+
+        konto = destinataer.standard_konto or StiftungsKonto.objects.first()
+        if not konto:
+            return "no_konto"
+
+        verb = "FORCE " if force else "create"
+        label = (
+            f"{destinataer.get_full_name()} "
+            f"({destinataer.vierteljaehrlicher_betrag}€ → {payment_due_date.strftime('%d.%m.%Y')})"
+        )
+
+        if dry_run:
+            self.stdout.write(f"  {verb}  würde Zahlung anlegen für {label}")
+            transaction.set_rollback(True)
+            return "created"
+
+        if force:
+            payment = DestinataerUnterstuetzung.objects.create(
+                destinataer=destinataer,
+                konto=konto,
+                betrag=destinataer.vierteljaehrlicher_betrag,
+                faellig_am=payment_due_date,
+                status="geplant",
+                beschreibung=(
+                    f"Vierteljährliche Unterstützung Q{quartal}/{jahr} "
+                    "(Backfill STI-107, ohne Nachweis-Prüfung)"
+                ),
+                empfaenger_iban=destinataer.iban,
+                empfaenger_name=destinataer.get_full_name(),
+                verwendungszweck=(
+                    f"Vierteljährliche Unterstützung Q{quartal}/{jahr} - "
+                    f"{destinataer.get_full_name()}"
+                ),
+                erstellt_am=timezone.now(),
+                aktualisiert_am=timezone.now(),
+            )
+        else:
+            payment = create_quarterly_support_payment(nachweis)
+            if payment is None:
+                return "incomplete"
+
+        self.stdout.write(
+            self.style.SUCCESS(
+                f"  {verb}  {destinataer.get_full_name()} "
+                f"({payment.betrag}€ → {payment.faellig_am.strftime('%d.%m.%Y')}, #{payment.pk})"
+            )
+        )
+        return "created"

app/stiftung/models/destinataere.py

@@ -909,6 +909,32 @@ class VierteljahresNachweis(models.Model):
 
         return complete
 
+    def is_complete_for_payment(self):
+        """Check if the quarter is sufficiently confirmed to release the support payment.
+
+        Semester logic: study proof for Q1/Q3 is due AFTER the matching payment due date
+        (Q3 payment 15.06., study proof 15.09.; Q1 payment 15.12. previous year,
+        study proof 15.03.). For those quarters the study proof cannot block the payment;
+        the previous semester's study proof or initial enrollment already covers them.
+
+        For Q2/Q4 the study proof deadline coincides with the payment due date (15.03./15.09.),
+        so we keep the full completeness requirement.
+        """
+        # Income and asset confirmations are always required
+        income_ok = self.einkommenssituation_bestaetigt and (
+            bool(self.einkommenssituation_text) or bool(self.einkommenssituation_datei)
+            or bool(self.einkommenssituation_dms_dokument_id)
+        )
+        assets_ok = self.vermogenssituation_bestaetigt and (
+            bool(self.vermogenssituation_text) or bool(self.vermogenssituation_datei)
+            or bool(self.vermogenssituation_dms_dokument_id)
+        )
+
+        if self.quartal in (1, 3):
+            return bool(income_ok and assets_ok)
+
+        return self.is_complete()
+
     def is_overdue(self):
         """Check if the deadline has passed"""
         if not self.faelligkeitsdatum:
@@ -1011,8 +1037,10 @@ class VierteljahresNachweis(models.Model):
         if not self.faelligkeitsdatum:
             self.faelligkeitsdatum = self.studiennachweis_faelligkeitsdatum
 
-        # Auto-update status based on completion
-        if self.is_complete():
+        # Auto-update status based on completion.
+        # For Q1/Q3 the study proof falls due AFTER the payment, so payment-ready
+        # confirmation (income + assets) is enough to advance to 'eingereicht'.
+        if self.is_complete_for_payment():
             if self.status == "offen":
                 self.status = "eingereicht"
                 self.eingereicht_am = timezone.now()

app/stiftung/views/unterstuetzungen.py

@@ -1060,26 +1060,27 @@ def quarterly_confirmation_update(request, pk):
             
             # Calculate current status before saving
             old_status = nachweis.status
-            
-            # Auto-update status based on completion
-            if quarterly_proof.is_complete():
+
+            # Auto-update status based on completion. Q1/Q3 reach 'eingereicht' on
+            # income+assets alone (study proof is due after the payment).
+            if quarterly_proof.is_complete_for_payment():
                 if quarterly_proof.status in ['offen', 'teilweise']:
                     quarterly_proof.status = 'eingereicht'
                     quarterly_proof.eingereicht_am = timezone.now()
             else:
                 # If not complete, set to teilweise if some fields are filled
                 has_partial_data = (
-                    quarterly_proof.einkommenssituation_bestaetigt or 
+                    quarterly_proof.einkommenssituation_bestaetigt or
                     quarterly_proof.vermogenssituation_bestaetigt or
                     quarterly_proof.studiennachweis_eingereicht
                 )
                 if has_partial_data and quarterly_proof.status == 'offen':
                     quarterly_proof.status = 'teilweise'
-            
+
             quarterly_proof.save()
-            
-            # Try to create automatic support payment if complete
-            if quarterly_proof.is_complete() and quarterly_proof.status == 'eingereicht':
+
+            # Try to create automatic support payment if payment-ready
+            if quarterly_proof.is_complete_for_payment() and quarterly_proof.status == 'eingereicht':
                 support_payment = create_quarterly_support_payment(quarterly_proof)
                 if support_payment:
                     messages.success(
@@ -1130,8 +1131,10 @@ def create_quarterly_support_payment(nachweis):
     from datetime import date
     destinataer = nachweis.destinataer
     
-    # Check if all requirements are met
-    if not nachweis.is_complete():
+    # Check if payment-relevant requirements are met. For Q1/Q3 the study proof is
+    # due AFTER the payment date (15.12./15.06. vs. 15.03./15.09.), so we use the
+    # payment-ready check which skips the study proof for those quarters.
+    if not nachweis.is_complete_for_payment():
         return None
     
     # Check if destinataer has required payment info
@@ -1347,8 +1350,9 @@ def quarterly_confirmation_edit(request, pk):
             # Calculate current status before saving
             old_status = nachweis.status
 
-            # Auto-update status based on completion
-            if quarterly_proof.is_complete():
+            # Auto-update status based on completion. Q1/Q3 reach 'eingereicht' on
+            # income+assets alone (study proof is due after the payment).
+            if quarterly_proof.is_complete_for_payment():
                 if quarterly_proof.status in ['offen', 'teilweise']:
                     quarterly_proof.status = 'eingereicht'
                     quarterly_proof.eingereicht_am = timezone.now()
@@ -1364,8 +1368,8 @@ def quarterly_confirmation_edit(request, pk):
 
             quarterly_proof.save()
 
-            # Try to create automatic support payment if complete
-            if quarterly_proof.is_complete() and quarterly_proof.status == 'eingereicht':
+            # Try to create automatic support payment if payment-ready
+            if quarterly_proof.is_complete_for_payment() and quarterly_proof.status == 'eingereicht':
                 support_payment = create_quarterly_support_payment(quarterly_proof)
                 if support_payment:
                     messages.success(
@@ -1510,8 +1514,9 @@ def quarterly_confirmation_reset(request, pk):
     
     if request.method == "POST":
         if nachweis.status in ['geprueft', 'eingereicht']:
-            # Reset the quarterly confirmation status
-            nachweis.status = 'eingereicht' if nachweis.is_complete() else 'teilweise'
+            # Reset the quarterly confirmation status. Use the payment-ready check
+            # so Q1/Q3 keep their 'eingereicht' status after reset even without study proof.
+            nachweis.status = 'eingereicht' if nachweis.is_complete_for_payment() else 'teilweise'
             nachweis.geprueft_am = None
             nachweis.geprueft_von = None
             nachweis.aktualisiert_am = timezone.now()