Book Image

Mastering ServiceNow - Second Edition

Book Image

Mastering ServiceNow - Second Edition

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. The book steps through the main aspects of the ServiceNow platform, from the ground up. It starts by exploring the core architecture of ServiceNow, including building the right data structure. To add business logic and control data, and interactivity to user interaction, you will be shown how to code on both server and the client. You will then learn more about the power of tasks, events and notifications. The book will then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Furthermore, you will learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. You will then be shown how to package your applications and changes, so they can be installed elsewhere and ways to maintain them easily. If you wish to create an alternative simple interface, then explore ways to make ServiceNow beautiful using Service Portal. By the end of the book, you will know the fundamentals of the ServiceNow platform, helping you be a better ServiceNow System Administrator or developer.
Table of Contents (18 chapters)
Mastering ServiceNow Second Edition
About the Author
About the Reviewer

Including Jelly in the standard interface

Jelly is not reserved for building custom pages. Since the ServiceNow platform is built using the language, there are several places you can inject your own code to further control your instance.

Adding formatters

One of the simplest things to do with Jelly is to create a formatter. This provides a mechanism to include a UI Macro in a form. Navigate to System UI > Formatters to see the out-of-the-box items. There are several examples, including the process flow formatter, the activity log, and the variable editor placed on the ITSM tables, that show what is possible.

Let's cover a simple but useful example. This will run on the Maintenance form, making it more obvious when an SLA has been breached:

  1. Navigate to System UI > UI Macros, click on New, fill out the form as follows, and Save:

    • Name: check_breached_sla

    • XML: (Insert inside the provided template, on line 3)

      <j2:if test="$[!current.isNewRecord()]">