Book Image

ServiceNow: Building Powerful Workflows

By : Tim Woodruff, Martin Wood, Ashish Rudra Srivastava
Book Image

ServiceNow: Building Powerful Workflows

By: Tim Woodruff, Martin Wood, Ashish Rudra Srivastava

Overview of this book

ServiceNow is a SaaS application that provides workflow form-based applications. It is an ideal platform for creating enterprise-level applications, giving requesters and fulfillers improved visibility and access to a process. ServiceNow-based applications often replace email by providing a better way to get work done. This course will show you how to put important ServiceNow features to work in the real world. We will introduce key concepts and examples on managing and automating IT services, and help you build a solid foundation towards this new approach. You will then learn more about the power of tasks, events, and notifications. We’ll then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Further on, you’ll learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. At the end of this course, you will acquire immediately applicable skills to rectify everyday problems encountered on the ServiceNow platform. The course provides you with highly practical content explaining ServiceNow from the following Packt books: 1. Learning ServiceNow 2. ServiceNow Cookbook 3. Mastering ServiceNow, Second Edition
Table of Contents (39 chapters)
Title Page
Credits
Preface
Free Chapter
1
Module 1
36
Bibliography

Dot-walking and GlideElement


As we learned in a previous chapter, dot-walking allows you to access fields on related records via a reference field, by chaining field names separated by dots. For example, to get the email address of the person to whom an incident is assigned from a business rule on the Incident table, you might use the following code:

var assignedEmail = current.assigned_to.email.toString(); 

You might notice that I also used the toString() method above. This is because, as we saw in the server-side Glide API documentation, fields accessed from server-side GlideRecords return GlideElement objects; not just values. JavaScript will generally coerce (cast) values to whatever datatype you're trying to use it as, but it is always best to explicitly convert values derived from GlideElement objects. Otherwise, you risk getting the wrong data type. When not dot-walking, you can explicitly get a string value from a field by using the getValue() method, as in the following line:

var assignee...