ManualViewBuilder Class — drizzle-orm Architecture

Source Code

drizzle-orm/src/pg-core/view.ts lines 75–131

export class ManualViewBuilder<
	TName extends string = string,
	TColumns extends Record<string, PgColumnBuilderBase> = Record<string, PgColumnBuilderBase>,
> extends DefaultViewBuilderCore<{ name: TName; columns: TColumns }> {
	static override readonly [entityKind]: string = 'PgManualViewBuilder';

	private columns: Record<string, PgColumn>;

	constructor(
		name: TName,
		columns: TColumns,
		schema: string | undefined,
	) {
		super(name, schema);
		this.columns = getTableColumns(pgTable(name, columns));
	}

	existing(): PgViewWithSelection<TName, true, BuildColumns<TName, TColumns, 'pg'>> {
		return new Proxy(
			new PgView({
				pgConfig: undefined,
				config: {
					name: this.name,
					schema: this.schema,
					selectedFields: this.columns,
					query: undefined,
				},
			}),
			new SelectionProxyHandler({
				alias: this.name,
				sqlBehavior: 'error',
				sqlAliasedBehavior: 'alias',
				replaceOriginalName: true,
			}),
		) as PgViewWithSelection<TName, true, BuildColumns<TName, TColumns, 'pg'>>;
	}

	as(query: SQL): PgViewWithSelection<TName, false, BuildColumns<TName, TColumns, 'pg'>> {
		return new Proxy(
			new PgView({
				pgConfig: this.config,
				config: {
					name: this.name,
					schema: this.schema,
					selectedFields: this.columns,
					query: query.inlineParams(),
				},
			}),
			new SelectionProxyHandler({
				alias: this.name,
				sqlBehavior: 'error',
				sqlAliasedBehavior: 'alias',
				replaceOriginalName: true,
			}),
		) as PgViewWithSelection<TName, false, BuildColumns<TName, TColumns, 'pg'>>;
	}
}