Merge pull request #498 from Tria-plc/Doublehandling

Doublehandling

apps/edr-freight-api/src/migrations/1990000000000-AddDoubleHandlingBasisAndMachinery.ts

@@ -0,0 +1,25 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+/**
+ * Double-handling fee support. warehouse_fee_rules.basis: how a
+ * DOUBLE_HANDLING_FEE rule is charged — PER_CONTAINER | PER_TON | PER_ITEM
+ * (null for the day-based fee types). The PER_TON / PER_ITEM quantity comes from
+ * the booking's cargo total (cargo_total_weight_vgm, expressed in the cargo's
+ * unit of measure), so no new booking column is needed.
+ */
+export class AddDoubleHandlingBasisAndMachinery1990000000000 implements MigrationInterface {
+  name = 'AddDoubleHandlingBasisAndMachinery1990000000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `ALTER TABLE freight.warehouse_fee_rules ADD COLUMN IF NOT EXISTS basis varchar(20)`,
+    );
+    // machinery_units is not used (PER_ITEM reads cargo_total_weight_vgm); drop it
+    // if a prior version of this migration added it.
+    await queryRunner.query(`ALTER TABLE freight.bookings DROP COLUMN IF EXISTS machinery_units`);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`ALTER TABLE freight.warehouse_fee_rules DROP COLUMN IF EXISTS basis`);
+  }
+}