Merge branch 'dev' into freight/feat/fixes-v1

apps/edr-freight-api/src/migrations/2100000000000-WarehouseLoadingTrainAssociation.ts

@@ -0,0 +1,35 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+/**
+ * Auto-load onto a selected train: a warehouse_loadings row now records WHICH
+ * train the item was loaded onto (train_schedule_id), and wagon_id becomes
+ * nullable because a schedule-level load may not resolve to a single wagon.
+ */
+export class WarehouseLoadingTrainAssociation2100000000000 implements MigrationInterface {
+  name = 'WarehouseLoadingTrainAssociation2100000000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      ALTER TABLE freight.warehouse_loadings
+        ADD COLUMN IF NOT EXISTS train_schedule_id UUID NULL
+    `);
+    await queryRunner.query(`
+      ALTER TABLE freight.warehouse_loadings
+        ALTER COLUMN wagon_id DROP NOT NULL
+    `);
+    await queryRunner.query(`
+      CREATE INDEX IF NOT EXISTS idx_warehouse_loadings_train_schedule
+        ON freight.warehouse_loadings(train_schedule_id)
+        WHERE train_schedule_id IS NOT NULL
+    `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`DROP INDEX IF EXISTS freight.idx_warehouse_loadings_train_schedule`);
+    await queryRunner.query(`
+      ALTER TABLE freight.warehouse_loadings DROP COLUMN IF EXISTS train_schedule_id
+    `);
+    // wagon_id stays nullable on revert: restoring NOT NULL would fail on rows
+    // recorded without a wagon and re-introduce the outage this fixes.
+  }
+}