Method count

packages/hydrooj/src/model/problem.ts:278–280

(domainId: string, query: Filter<ProblemDoc>)

    }

    static count(domainId: string, query: Filter<ProblemDoc>) {
        return document.count(domainId, document.TYPE_PROBLEM, query);
    }

    static async del(domainId: string, docId: number) {
        await bus.parallel('problem/before-del', domainId, docId);