applyMySqlDiffs() — drizzle-orm Function Reference

Source Code

drizzle-kit/tests/schemaDiffer.ts lines 1424–1475

export const applyMySqlDiffs = async (
	sn: MysqlSchema,
	casing: CasingType | undefined,
) => {
	const dryRun = {
		version: '5',
		dialect: 'mysql',
		id: '0',
		prevId: '0',
		views: {},
		tables: {},
		enums: {},
		schemas: {},
		_meta: {
			schemas: {},
			tables: {},
			columns: {},
		},
	} as const;

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

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

	const serialized1 = generateMySqlSnapshot(tables, views, casing);

	const { version: v1, dialect: d1, ...rest1 } = serialized1;

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

	const sn1 = squashMysqlScheme(sch1);

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

	const { sqlStatements, statements } = await applyMysqlSnapshotsDiff(
		dryRun,
		sn1,
		testTablesResolver(new Set()),
		testColumnsResolver(new Set()),
		testViewsResolverMySql(new Set()),
		validatedPrev,
		validatedCur,
	);
	return { sqlStatements, statements };
};