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63 lines
2.5 KiB
TypeScript
63 lines
2.5 KiB
TypeScript
import { MigrationInterface, QueryRunner } from 'typeorm';
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/**
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* Fuel surcharge, sold per lane + commodity:
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*
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* - cargo_types.has_fuel marks the commodities that incur it (same shape as
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* has_lashing — the booking's cargo type flag is what fires the charge).
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* - rates.base_liters carries the liters a PER_LITER fuel rate bills
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* (price = base_liters × rate_value, once per booking). NULL on every other
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* rate shape, including PER_WAGON fuel rates (wagons × rate_value).
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* - CK_rates_yard_scope gains FUEL in its yard-carrying branch: fuel is priced
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* per origin → destination leg like customs clearance and container return.
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*/
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export class FuelSurcharge3430000000000 implements MigrationInterface {
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public async up(queryRunner: QueryRunner): Promise<void> {
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await queryRunner.query(`
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ALTER TABLE freight.cargo_types
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ADD COLUMN IF NOT EXISTS has_fuel boolean NOT NULL DEFAULT false
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`);
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await queryRunner.query(`
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ALTER TABLE freight.rates
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ADD COLUMN IF NOT EXISTS base_liters numeric(14,4)
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`);
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await queryRunner.query(
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`ALTER TABLE freight.rates DROP CONSTRAINT IF EXISTS "CK_rates_yard_scope"`,
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);
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await queryRunner.query(`
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ALTER TABLE freight.rates ADD CONSTRAINT "CK_rates_yard_scope" CHECK (
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deleted_at IS NOT NULL OR status = 'SUPERSEDED' OR
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CASE
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WHEN (trigger = 'ALWAYS' AND applies_to IN ('BULK', 'CONTAINER', 'INTERCITY'))
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OR trigger IN ('CUSTOMS_CLEARANCE', 'WITH_RETURN', 'FUEL')
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THEN origin_yard_id IS NOT NULL AND destination_yard_id IS NOT NULL
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ELSE origin_yard_id IS NULL AND destination_yard_id IS NULL
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END
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)
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`);
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}
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public async down(queryRunner: QueryRunner): Promise<void> {
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await queryRunner.query(
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`ALTER TABLE freight.rates DROP CONSTRAINT IF EXISTS "CK_rates_yard_scope"`,
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);
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await queryRunner.query(`
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ALTER TABLE freight.rates ADD CONSTRAINT "CK_rates_yard_scope" CHECK (
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deleted_at IS NOT NULL OR status = 'SUPERSEDED' OR
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CASE
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WHEN (trigger = 'ALWAYS' AND applies_to IN ('BULK', 'CONTAINER', 'INTERCITY'))
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OR trigger IN ('CUSTOMS_CLEARANCE', 'WITH_RETURN')
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THEN origin_yard_id IS NOT NULL AND destination_yard_id IS NOT NULL
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ELSE origin_yard_id IS NULL AND destination_yard_id IS NULL
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END
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)
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`);
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await queryRunner.query(`ALTER TABLE freight.rates DROP COLUMN IF EXISTS base_liters`);
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await queryRunner.query(
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`ALTER TABLE freight.cargo_types DROP COLUMN IF EXISTS has_fuel`,
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);
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}
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}
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