text: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  const _ = require('lodash');
  
  exports.up = function up(done) {
      const accountsModel = this('Account');
  
      accountsModel.find({}).lean().exec()
          .then((accounts) => _.reduce(accounts, (start, account) => start
              .then(() => accountsModel.update({_id: account._id}, {$set: {registered: account.lastLogin}}).exec()), Promise.resolve()))
          .then(() => done())
          .catch(done);
  };
  
  exports.down = function down(done) {
      this('Account').update({}, {$unset: {registered: 1}}, {multi: true}).exec()
          .then(() => done())
          .catch(done);
  };
  