Learning ServiceNow电子书

Learning ServiceNow Second Edition

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PacktPub.com

Contributors

About the author

About the reviewers

Packt is Searching for Authors Like You

Preface

Who this book is for

What this book covers

To get the most out of this book

Basic knowledge of JavaScript

A free developer instance of ServiceNow

Download the color images

Conventions used

Get in touch

Reviews

Chapter 1. The Interface

Versions

Frames

Banner frame

The application navigator

Filter text box

Favorites

History

Important application menus and modules

Content frame

UI settings and personalization

Summary

Chapter 2. Lists and Forms

List v2 versus List v3

Lists and tables

Creating a custom table

List view

Condition builder

Forms

Form designer

Form layout

Related lists

Summary

Chapter 3. UI Customization

UI15 versus UI16

Switching between UI15 and UI16

Branding your instance

Custom themes

UI-impacting system properties

Configuring service portal UI

Creating a custom homepage

Styling pages and widgets

Setting up the War Room page

Styling the CMS

Summary

Chapter 4. Understanding Data and Relationships

One-to-many relationships in ServiceNow

Many-to-many relationships in ServiceNow

Creating a M2M table

Other M2M relationships

Enforcing one-to-one relationships

Defining custom relationships

Database table inheritance

Summary

Chapter 5. Tasks and Workflows

Important task fields

Active

Additional comments and work notes

Journals and the activity formatter

Extending the task table

Workflows

Important workflow activities

Pausing workflows

Workflow Stages

SLAs

Approvals

Assignment

Creating Task fields

Summary

Chapter 6. UI and Data Policies

UI policies

Catalog UI policies

Reverse if false

Scripting in UI policies

UI Policy Order

Demo

Data policies

Demo

Converting between data and UI policies

Demo

Data policies versus ACLs

Summary

Chapter 7. User Administration and Security

What is a user?

Groups and roles

Impersonating users for testing

Emails and notifications

Demo

Notification devices

User preferences

Default preferences

Preferences in update sets

Scripting user preferences

ACLs – security rules

ACL process order

High security plugin

Summary

Chapter 8. Introduction to Scripting

To script, or not to script?

Client-side versus server-side APIs

Client-side APIs

Server-side APIs

Where scripting is supported

Access controls

Business rules

Client scripts and catalog client scripts

Condition builder (and the URL)

Default value

Script includes

UI actions

UI policies and catalog UI policies

UI scripts

Workflow activities

Integrated development environment

Script tree

Script auto-completion

Script editor macros

Summary

Chapter 9. The Server-Side Glide API

The structure of an API class

Server-side APIs

GlideRecord

Initialize

addQuery()

addActiveQuery()

addNullQuery() and addNotNullQuery()

canRead(), canWrite(), canCreate(), and canDelete()

deleteRecord() and deleteMultiple()

get()

getDisplayValue()

getValue() and getUniqueValue()

hasNext()

initialize() and insert()

next()

orderBy() and orderByDesc()

query()

setAbortAction()

setLimit()

setValue()

setWorkflow()

update() and updateMultiple()

GlideElement

changes(), changesFrom() and changesTo()

getDisplayValue()

getED()

getReferenceTable() and getRefRecord()

nil()

toString()

GlideDateTime

Adding or removing time

getDayOfMonth() and getDayOfWeek()

GlideSession

getClientData() and putClientData()

GlideSystem

addErrorMessage() and addInfoMessage()

debug()

eventQueue()

getProperty()

getUser()

getUserID()

hasRole()

GlideUser

getPreference() and savePreference()

hasRole()

isMemberOf()

Summary

Chapter 10. The Client-Side Glide API

Client-side APIs

GlideAjax

GlideForm (g_form)

Setting/clearing messages on the form and fields

Dealing with drop-down list fields

Getting and setting values on the form

Controlling field visibility

Setting fields mandatory and read-only

Submitting a client-side form

Disabling checking for mandatory fields

GlideUser (g_user)

Getting user details

Checking user permissions

Getting client data

GlideRecord

Querying for one or more records

Deleting a record asynchronously

Summary

Chapter 11. Server-Side Scripting

Dot-walking and GlideElement

Script includes

Server-side GlideAjax

Business rules

After business rules

Asynchronous business rules

Default versus calculated field values

Default values

Calculated values

Summary

Chapter 12. Client-Side Scripting

Client scripts

Client script types

Security

Compatibility

Build for performance

Reference fields

GlideAjax and asynchronous GlideRecord

g_scratchpad

UI scripts

Running only necessary scripts

Scripts from the server

Summary

Chapter 13. Service Portal Scripting

Setting up appointments

URLs in the service portal

Creating the meeting widget

Aesthetic changes

Option schema

Troubleshooting widgets

Summary

Chapter 14. Debugging

Logging

Client-side debugging

Debugging field visibility

Server-side debugging

Reference versus value

Debugging security

JavaScript debugger

Debugger interface

Breakpoints

General debugging

Summary

Chapter 15. Pro Tips

Admin pro tips

List personalization

Update set selector

Reference field background color

List v3 rendering

List, form, and new window shortcuts

Adding the ServiceNow frame by URL

Impersonation simplification

Derived field risks

Finding derived fields and other field data

Dictionary overrides

Scripting pro tips

Avoiding nested loops

Limit logging

What the pros wish they knew

Field case

Generating encoded query strings

How to modify OOB scripts

Other technical best practices

Summary

Index

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B

C

D

E

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