real.ts — drizzle-orm Source File

Source Code

import type { ColumnBuilderBaseConfig, ColumnBuilderRuntimeConfig, MakeColumnConfig } from '~/column-builder.ts';
import type { ColumnBaseConfig } from '~/column.ts';
import { entityKind } from '~/entity.ts';
import type { AnyMySqlTable } from '~/mysql-core/table.ts';
import { getColumnNameAndConfig } from '~/utils.ts';
import { MySqlColumnBuilderWithAutoIncrement, MySqlColumnWithAutoIncrement } from './common.ts';

export type MySqlRealBuilderInitial<TName extends string> = MySqlRealBuilder<{
	name: TName;
	dataType: 'number';
	columnType: 'MySqlReal';
	data: number;
	driverParam: number | string;
	enumValues: undefined;
}>;

export class MySqlRealBuilder<T extends ColumnBuilderBaseConfig<'number', 'MySqlReal'>>
	extends MySqlColumnBuilderWithAutoIncrement<
		T,
		MySqlRealConfig
	>
{
	static override readonly [entityKind]: string = 'MySqlRealBuilder';

	constructor(name: T['name'], config: MySqlRealConfig | undefined) {
		super(name, 'number', 'MySqlReal');
		this.config.precision = config?.precision;
		this.config.scale = config?.scale;
	}

	/** @internal */
	override build<TTableName extends string>(
		table: AnyMySqlTable<{ name: TTableName }>,
	): MySqlReal<MakeColumnConfig<T, TTableName>> {
		return new MySqlReal<MakeColumnConfig<T, TTableName>>(table, this.config as ColumnBuilderRuntimeConfig<any, any>);
	}
}

export class MySqlReal<T extends ColumnBaseConfig<'number', 'MySqlReal'>> extends MySqlColumnWithAutoIncrement<
	T,
	MySqlRealConfig
> {
	static override readonly [entityKind]: string = 'MySqlReal';

	precision: number | undefined = this.config.precision;
	scale: number | undefined = this.config.scale;

	getSQLType(): string {
		if (this.precision !== undefined && this.scale !== undefined) {
			return `real(${this.precision}, ${this.scale})`;
		} else if (this.precision === undefined) {
			return 'real';
		} else {
			return `real(${this.precision})`;
		}
	}
}

export interface MySqlRealConfig {
	precision?: number;
	scale?: number;
}

export function real(): MySqlRealBuilderInitial<''>;
export function real(
	config?: MySqlRealConfig,
): MySqlRealBuilderInitial<''>;
export function real<TName extends string>(
	name: TName,
	config?: MySqlRealConfig,
): MySqlRealBuilderInitial<TName>;
export function real(a?: string | MySqlRealConfig, b: MySqlRealConfig = {}) {
	const { name, config } = getColumnNameAndConfig<MySqlRealConfig>(a, b);
	return new MySqlRealBuilder(name, config);
}