rework internal order system

backend/src/database/migrations/050_add_missing_anfragen_columns.sql

@@ -0,0 +1,22 @@
+-- Migration 050: Add missing columns to ausruestung_anfragen
+-- These columns are referenced by the service code but were never created
+
+ALTER TABLE ausruestung_anfragen ADD COLUMN IF NOT EXISTS bearbeitet_am TIMESTAMPTZ;
+ALTER TABLE ausruestung_anfragen ADD COLUMN IF NOT EXISTS bestell_nummer INT;
+ALTER TABLE ausruestung_anfragen ADD COLUMN IF NOT EXISTS bestell_jahr INT;
+
+-- Backfill bestell_nummer for existing rows
+DO $$
+DECLARE
+  yr INT;
+  rec RECORD;
+  nr INT;
+BEGIN
+  FOR yr IN SELECT DISTINCT EXTRACT(YEAR FROM erstellt_am)::int FROM ausruestung_anfragen LOOP
+    nr := 0;
+    FOR rec IN SELECT id FROM ausruestung_anfragen WHERE EXTRACT(YEAR FROM erstellt_am)::int = yr AND bestell_nummer IS NULL ORDER BY erstellt_am LOOP
+      nr := nr + 1;
+      UPDATE ausruestung_anfragen SET bestell_nummer = nr, bestell_jahr = yr WHERE id = rec.id;
+    END LOOP;
+  END LOOP;
+END $$;