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Centralize archive deletion loop; stagger different centralized loops slightly

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Dragory 2021-09-25 21:53:48 +03:00
parent 2d84a02d48
commit 617a4ea7fc
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4 changed files with 44 additions and 18 deletions
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21
backend/src/data/Archives.ts Normal file
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@ -0,0 +1,21 @@
import { getRepository, Repository } from "typeorm";
import { ArchiveEntry } from "./entities/ArchiveEntry";
import { BaseRepository } from "./BaseRepository";
export class Archives extends BaseRepository {
protected archives: Repository<ArchiveEntry>;
constructor() {
super();
this.archives = getRepository(ArchiveEntry);
}
public deleteExpiredArchives() {
this.archives
.createQueryBuilder()
.andWhere("expires_at IS NOT NULL")
.andWhere("expires_at <= NOW()")
.delete()
.execute();
}
}

14
backend/src/data/GuildArchives.ts
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@ -27,20 +27,6 @@ export class GuildArchives extends BaseGuildRepository {
constructor(guildId) {
super(guildId);
this.archives = getRepository(ArchiveEntry);
// Clean expired archives at start and then every hour
this.deleteExpiredArchives();
setInterval(() => this.deleteExpiredArchives(), 1000 * 60 * 60);
}
private deleteExpiredArchives() {
this.archives
.createQueryBuilder()
.where("guild_id = :guild_id", { guild_id: this.guildId })
.andWhere("expires_at IS NOT NULL")
.andWhere("expires_at <= NOW()")
.delete()
.execute();
}
async find(id: string): Promise<ArchiveEntry | undefined> {

12
backend/src/data/loops/expiredArchiveDeletionLoop.ts Normal file
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@ -0,0 +1,12 @@
import { lazyMemoize, MINUTES } from "../../utils";
import { Archives } from "../Archives";
import moment from "moment-timezone";
const LOOP_INTERVAL = 15 * MINUTES;
const getArchivesRepository = lazyMemoize(() => new Archives());
export async function runExpiredArchiveDeletionLoop() {
console.log("[EXPIRED ARCHIVE DELETION LOOP] Deleting expired archives");
await getArchivesRepository().deleteExpiredArchives();
setTimeout(() => runExpiredArchiveDeletionLoop(), LOOP_INTERVAL);
}