zappyzep/src/data/db.ts
2018-10-26 06:41:20 +03:00

23 lines
655 B
TypeScript

import { SimpleError } from "../SimpleError";
import { Connection, createConnection } from "typeorm";
let connectionPromise: Promise<Connection>;
export let connection: Connection;
export function connect() {
if (!connectionPromise) {
connectionPromise = createConnection().then(newConnection => {
return newConnection.query("SELECT TIMEDIFF(NOW(), UTC_TIMESTAMP) AS tz").then(r => {
if (r[0].tz !== "00:00:00") {
throw new SimpleError(`Database timezone must be UTC (detected ${r[0].tz})`);
}
connection = newConnection;
return newConnection;
});
});
}
return connectionPromise;
}