BetterSQLiteSession Class — drizzle-orm Architecture

Source Code

drizzle-orm/src/better-sqlite3/session.ts lines 28–83

export class BetterSQLiteSession<
	TFullSchema extends Record<string, unknown>,
	TSchema extends TablesRelationalConfig,
> extends SQLiteSession<'sync', RunResult, TFullSchema, TSchema> {
	static override readonly [entityKind]: string = 'BetterSQLiteSession';

	private logger: Logger;
	private cache: Cache;

	constructor(
		private client: Database,
		dialect: SQLiteSyncDialect,
		private schema: RelationalSchemaConfig<TSchema> | undefined,
		options: BetterSQLiteSessionOptions = {},
	) {
		super(dialect);
		this.logger = options.logger ?? new NoopLogger();
		this.cache = options.cache ?? new NoopCache();
	}

	prepareQuery<T extends Omit<PreparedQueryConfig, 'run'>>(
		query: Query,
		fields: SelectedFieldsOrdered | undefined,
		executeMethod: SQLiteExecuteMethod,
		isResponseInArrayMode: boolean,
		customResultMapper?: (rows: unknown[][]) => unknown,
		queryMetadata?: {
			type: 'select' | 'update' | 'delete' | 'insert';
			tables: string[];
		},
		cacheConfig?: WithCacheConfig,
	): PreparedQuery<T> {
		const stmt = this.client.prepare(query.sql);
		return new PreparedQuery(
			stmt,
			query,
			this.logger,
			this.cache,
			queryMetadata,
			cacheConfig,
			fields,
			executeMethod,
			isResponseInArrayMode,
			customResultMapper,
		);
	}

	override transaction<T>(
		transaction: (tx: BetterSQLiteTransaction<TFullSchema, TSchema>) => T,
		config: SQLiteTransactionConfig = {},
	): T {
		const tx = new BetterSQLiteTransaction('sync', this.dialect, this, this.schema);
		const nativeTx = this.client.transaction(transaction);
		return nativeTx[config.behavior ?? 'deferred'](tx);
	}
}