refactor: Reactivate workflow locking (#4770)

* feat: Reenable workflow locking

Co-authored-by: freyamade <freya@n8n.io>
Co-authored-by: Csaba Tuncsik <csaba@n8n.io>

packages/cli/src/databases/migrations/postgresdb/1669739707126-AddWorkflowVersionIdColumn.ts

@@ -0,0 +1,44 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+import { getTablePrefix, logMigrationEnd, logMigrationStart } from '@db/utils/migrationHelpers';
+import config from '@/config';
+import { v4 as uuidv4 } from 'uuid';
+
+export class AddWorkflowVersionIdColumn1669739707126 implements MigrationInterface {
+	name = 'AddWorkflowVersionIdColumn1669739707126';
+
+	async up(queryRunner: QueryRunner) {
+		logMigrationStart(this.name);
+
+		const tablePrefix = getTablePrefix();
+		await queryRunner.query(
+			`ALTER TABLE ${tablePrefix}workflow_entity ADD COLUMN "versionId" CHAR(36)`,
+		);
+
+		const workflowIds: Array<{ id: number }> = await queryRunner.query(`
+			SELECT id
+			FROM ${tablePrefix}workflow_entity
+		`);
+
+		workflowIds.map(({ id }) => {
+			const [updateQuery, updateParams] = queryRunner.connection.driver.escapeQueryWithParameters(
+				`
+					UPDATE ${tablePrefix}workflow_entity
+					SET "versionId" = :versionId
+					WHERE id = '${id}'
+				`,
+				{ versionId: uuidv4() },
+				{},
+			);
+
+			return queryRunner.query(updateQuery, updateParams);
+		});
+
+		logMigrationEnd(this.name);
+	}
+
+	async down(queryRunner: QueryRunner) {
+		const tablePrefix = config.getEnv('database.tablePrefix');
+
+		await queryRunner.query(`ALTER TABLE ${tablePrefix}workflow_entity DROP COLUMN "versionId"`);
+	}
+}