habitica/migrations/groups/update-groups-with-group-plans.js

var migrationName = 'ResyncGroupPlanMembers';
var authorName = 'TheHollidayInn'; // in case script author needs to know when their ...
var authorUuid = ''; //... own data is done

/*
 * This migrations will iterate through all groups with a group plan a subscription and resync the free
 * subscription to all members
 */

import Bluebird from 'bluebird';

import { model as Group } from '../../website/server/models/group';
import * as payments from '../../website/server/libs/payments';

async function updateGroupsWithGroupPlans () {
  let cursor = Group.find({
    'purchased.plan.planId': 'group_monthly',
    'purchased.plan.dateTerminated': null,
  }).cursor();

  let promises = [];

  cursor.on('data', function(group) {
    promises.push(payments.addSubscriptionToGroupUsers(group));
    promises.push(group.save())
  });

  cursor.on('close', async function() {
    return await Bluebird.all(promises);
  });
};

module.exports = updateGroupsWithGroupPlans;