Parse avec relation

Parse.Cloud.job("sandBoxJob", function(request, status) {
    console.log('sandBoxJob cheaters started');
    var _ = require('underscore.js');

    var basic_account = 50;
    var hacked_account = 1000;

    var query = new Parse.Query("Wabito");

    query.greaterThanOrEqualTo("account", hacked_account);

    query.find().then(function(items) {

        if (items.length>0){
            console.log(':\'( '+items.length+' Cheaters founded');
        }
        else {
            console.log(':) Cool! NO cheaters founded');
        }

        _.each(items, function(item) {
            // backup cheaters in a separate class
            var CheaterClass = Parse.Object.extend('Cheater');
            cheater = new CheaterClass();
            cheater.set('his_objectId', item.id);
            cheater.set('name', item.get('name'));
            cheater.set('hacked_account', item.get('account'));

            /*
            var images = item.relation("images");
            images.query().find({
                success: function(image) {
                    console.log('this image must be deleted '+JSON.stringify(image));
                }
            });
            */
            var imgQuery = new Parse.Query("Image");
            imgQuery.equalTo("userName", item.get('name'));
            imgQuery.find().then(function(image) {
                console.log('this image must be deleted '+JSON.stringify(image));
            });

            console.log('backuping ' + JSON.stringify(cheater));
            cheater.save(null, {
                success : function() {
                    console.log('After backuping, now resetting "'+ item.get('name')+ '" with hacked '+ item.get('account') + ' account');
                    item.set("account", basic_account);
                    item.save();
                    console.log('New account for "' + item.get("name") + '" is ' + item.get('account'));
                }
            });
        });//each
    });//find
});