import async from "async"; /** * Migration 15 * * Migration for setting user name to username if not set * @param {object} MigrationModule - the MigrationModule * @returns {Promise} - returns promise */ export default async function migrate(MigrationModule) { const userModel = await MigrationModule.runJob("GET_MODEL", { modelName: "user" }, this); return new Promise((resolve, reject) => { async.waterfall( [ next => { this.log("INFO", `Migration 15. Finding users with document version 3.`); userModel.find({ documentVersion: 3, name: { $in: [null, ""] } }, (err, users) => { if (err) next(err); else { async.eachLimit( users.map(user => user._doc), 1, (user, next) => { userModel.updateOne({ _id: user._id }, { $set: { name: user.username } }, next); }, err => { this.log("INFO", `Migration 15. Users found: ${users.length}.`); next(err); } ); } }); } ], err => { if (err) { reject(new Error(err)); } else { resolve(); } } ); }); }