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VercelPgTransaction Class — drizzle-orm Architecture

Architecture documentation for the VercelPgTransaction class in session.ts from the drizzle-orm codebase.

Class typescript DrizzleORM

Entity Profile

Dependency Diagram

graph TD
  dfe919e5_72c1_5f73_7dd8_e032793d2995["VercelPgTransaction"]
  5332ec54_ebfc_a1f4_a95c_2a39ae467e61["session.ts"]
  dfe919e5_72c1_5f73_7dd8_e032793d2995 -->|defined in| 5332ec54_ebfc_a1f4_a95c_2a39ae467e61
  d0b3aff2_b6a7_17f5_d12c_5e00e54eb727["transaction()"]
  dfe919e5_72c1_5f73_7dd8_e032793d2995 -->|method| d0b3aff2_b6a7_17f5_d12c_5e00e54eb727

Relationship Graph

Source Code

drizzle-orm/src/vercel-postgres/session.ts lines 282–308

export class VercelPgTransaction<
	TFullSchema extends Record<string, unknown>,
	TSchema extends TablesRelationalConfig,
> extends PgTransaction<VercelPgQueryResultHKT, TFullSchema, TSchema> {
	static override readonly [entityKind]: string = 'VercelPgTransaction';

	override async transaction<T>(
		transaction: (tx: VercelPgTransaction<TFullSchema, TSchema>) => Promise<T>,
	): Promise<T> {
		const savepointName = `sp${this.nestedIndex + 1}`;
		const tx = new VercelPgTransaction<TFullSchema, TSchema>(
			this.dialect,
			this.session,
			this.schema,
			this.nestedIndex + 1,
		);
		await tx.execute(sql.raw(`savepoint ${savepointName}`));
		try {
			const result = await transaction(tx);
			await tx.execute(sql.raw(`release savepoint ${savepointName}`));
			return result;
		} catch (err) {
			await tx.execute(sql.raw(`rollback to savepoint ${savepointName}`));
			throw err;
		}
	}
}

Domain

Defined In

Source

Frequently Asked Questions

What is the VercelPgTransaction class?
VercelPgTransaction is a class in the drizzle-orm codebase, defined in drizzle-orm/src/vercel-postgres/session.ts.
Where is VercelPgTransaction defined?
VercelPgTransaction is defined in drizzle-orm/src/vercel-postgres/session.ts at line 282.

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