refactor: On workflow deletion, cascade delete all entities associated with it (#5102)

packages/cli/src/databases/migrations/postgresdb/1673268682475-DeleteExecutionsWithWorkflows.ts

@@ -0,0 +1,52 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+import { logMigrationEnd, logMigrationStart } from '@db/utils/migrationHelpers';
+import config from '@/config';
+
+export class DeleteExecutionsWithWorkflows1673268682475 implements MigrationInterface {
+	name = 'DeleteExecutionsWithWorkflows1673268682475';
+	public async up(queryRunner: QueryRunner): Promise<void> {
+		logMigrationStart(this.name);
+		const tablePrefix = config.getEnv('database.tablePrefix');
+
+		await queryRunner.query(
+			`ALTER TABLE ${tablePrefix}execution_entity
+			 ALTER COLUMN "workflowId" TYPE INTEGER USING "workflowId"::integer`,
+		);
+
+		const workflowIds: Array<{ id: number }> = await queryRunner.query(`
+			SELECT id FROM ${tablePrefix}workflow_entity
+		`);
+
+		await queryRunner.query(
+			`DELETE FROM ${tablePrefix}execution_entity
+			 WHERE "workflowId" IS NOT NULL
+			 ${
+					workflowIds.length
+						? `AND "workflowId" NOT IN (${workflowIds.map(({ id }) => id).join()})`
+						: ''
+				}`,
+		);
+
+		await queryRunner.query(
+			`ALTER TABLE ${tablePrefix}execution_entity
+			 ADD CONSTRAINT "FK_${tablePrefix}execution_entity_workflowId"
+			 FOREIGN KEY ("workflowId") REFERENCES ${tablePrefix}workflow_entity ("id")
+			 ON DELETE CASCADE`,
+		);
+
+		logMigrationEnd(this.name);
+	}
+
+	public async down(queryRunner: QueryRunner): Promise<void> {
+		const tablePrefix = config.getEnv('database.tablePrefix');
+		await queryRunner.query(
+			`ALTER TABLE ${tablePrefix}execution_entity
+			 DROP CONSTRAINT "FK_${tablePrefix}execution_entity_workflowId"`,
+		);
+
+		await queryRunner.query(
+			`ALTER TABLE ${tablePrefix}execution_entity
+			 ALTER COLUMN "workflowId" TYPE TEXT`,
+		);
+	}
+}