Standkosten mit Standardsteuersatz versehen

db/migrations/0031_market_stand_cost_defaults.sql

@@ -0,0 +1,11 @@
+BEGIN;
+
+UPDATE market_occurrence_cost_item item
+SET tax_status = 'taxable', tax_rate = 8.10, updated_at = NOW()
+WHERE item.id = (
+  SELECT MIN(first_item.id)
+  FROM market_occurrence_cost_item first_item
+  WHERE first_item.occurrence_id = item.occurrence_id
+);
+
+COMMIT;