import * as mongodb from 'mongodb'; import Following from '../models/following'; export default async (me: mongodb.ObjectID, includeMe: boolean = true) => { // Fetch relation to other users who the I follows // SELECT followee const myfollowing = await Following .find({ follower_id: me, // 削除されたドキュメントは除く deleted_at: { $exists: false } }, { fields: { followee_id: true } }); // ID list of other users who the I follows const myfollowingIds = myfollowing.map(follow => follow.followee_id); if (includeMe) { myfollowingIds.push(me); } return myfollowingIds; };