diffTestSchemasMysql() — drizzle-orm Function Reference

Source Code

drizzle-kit/tests/schemaDiffer.ts lines 1477–1545

export const diffTestSchemasMysql = async (
	left: MysqlSchema,
	right: MysqlSchema,
	renamesArr: string[],
	cli: boolean = false,
	casing?: CasingType | undefined,
) => {
	const leftTables = Object.values(left).filter((it) => is(it, MySqlTable)) as MySqlTable[];

	const leftViews = Object.values(left).filter((it) => is(it, MySqlView)) as MySqlView[];

	const rightTables = Object.values(right).filter((it) => is(it, MySqlTable)) as MySqlTable[];

	const rightViews = Object.values(right).filter((it) => is(it, MySqlView)) as MySqlView[];

	const serialized1 = generateMySqlSnapshot(leftTables, leftViews, casing);
	const serialized2 = generateMySqlSnapshot(rightTables, rightViews, casing);

	const { version: v1, dialect: d1, ...rest1 } = serialized1;
	const { version: v2, dialect: d2, ...rest2 } = serialized2;

	const sch1 = {
		version: '5',
		dialect: 'mysql',
		id: '0',
		prevId: '0',
		...rest1,
	} as const;

	const sch2 = {
		version: '5',
		dialect: 'mysql',
		id: '0',
		prevId: '0',
		...rest2,
	} as const;

	const sn1 = squashMysqlScheme(sch1);
	const sn2 = squashMysqlScheme(sch2);

	const validatedPrev = mysqlSchema.parse(sch1);
	const validatedCur = mysqlSchema.parse(sch2);

	const renames = new Set(renamesArr);

	if (!cli) {
		const { sqlStatements, statements } = await applyMysqlSnapshotsDiff(
			sn1,
			sn2,
			testTablesResolver(renames),
			testColumnsResolver(renames),
			testViewsResolverMySql(renames),
			validatedPrev,
			validatedCur,
		);
		return { sqlStatements, statements };
	}

	const { sqlStatements, statements } = await applyMysqlSnapshotsDiff(
		sn1,
		sn2,
		tablesResolver,
		columnsResolver,
		mySqlViewsResolver,
		validatedPrev,
		validatedCur,
	);
	return { sqlStatements, statements };
};