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33 lines
1.3 KiB
TypeScript
33 lines
1.3 KiB
TypeScript
import { MigrationInterface, QueryRunner } from "typeorm";
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/**
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* Repair migration. `SeparateVehicleAvailability1890000000000` is recorded in
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* public.migrations but the `availability` column is absent on some databases
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* (recorded-but-not-applied drift). Because the original is already recorded,
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* TypeORM will not re-run it, so `vehiclesService.findAll` (a query builder that
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* selects every entity column) 500s with `column "availability" does not exist`.
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*
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* This re-adds the column idempotently and backfills. Safe to run everywhere:
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* `IF NOT EXISTS` makes it a no-op where the column already exists.
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*/
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export class RepairVehicleAvailabilityColumn2110000000000
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implements MigrationInterface
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{
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name = "RepairVehicleAvailabilityColumn2110000000000";
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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.vehicles
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ADD COLUMN IF NOT EXISTS availability varchar DEFAULT 'FREE'
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`);
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await queryRunner.query(`
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UPDATE freight.vehicles SET availability = 'FREE' WHERE availability IS NULL
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`);
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}
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public async down(): Promise<void> {
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// No-op: dropping a column other code now depends on would reintroduce the
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// drift. The original SeparateVehicleAvailability migration owns the column.
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}
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}
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