Table Of ContentExt JS Data-driven Application
Design
A step-by-step guide to building a user-friendly database
in Ext JS using data from an existing database
Kazuhiro Kotsutsumi
BIRMINGHAM - MUMBAI
Ext JS Data-driven Application Design
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First published: December 2013
Production Reference: 1171213
Published by Packt Publishing Ltd.
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Birmingham B3 2PB, UK.
ISBN 978-1-78216-544-6
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Cover Image by Tom Coulton ([email protected])
Credits
Author Copy Editors
Kazuhiro Kotsutsumi Alisha Aranha
Roshni Banerjee
Reviewers Mradula Hegde
Gagandeep Singh
Gladson Monteiro
Adrian Teodorescu
Deepa Nambiar
Li Xudong
Laxmi Subramanian
Acquisition Editor
Proofreader
Joanne Fitzpatrick
Lucy Rowland
Commissioning Editors
Indexer
Llewellyn Rozario
Hemangini Bari
Deepika Singh
Production Coordinator
Technical Editors Kyle Albuquerque
Rosmy George
Manal Pednekar
Cover Work
Veena Pagare Kyle Albuquerque
Project Coordinator
Akash Poojary
Foreword
Ext JS Data-driven Application Design, by Kazuhiro Kotsutsumi, is a practical hands-on
guide for both intermediate and expert JavaScript developers using Sencha's Ext JS
4.x framework.
This book is aimed at developers who not only want to learn how to develop a
real-life desktop application that can read from and write to a database, but also
want to see how to use the framework's advanced features they might not yet
have heard of.
Kazuhiro begins describing the application development process by leading the
reader through the database structure that the application will be using.
He continues by laying out the application structure using the MCV
(model-view-controller) pattern—decoupling the UI, data, and business-logic—while
detailing how to use Sencha's CLI tool Sencha CMD (Sencha Command) to help in
that process.
He utilizes the framework's power by showing the reader how to use the advanced
feature Ext Direct, describing in detail and with code examples what it is, how to add
it, and how to use it in an application. He also brings in browser history support and
again points out clearly how and why it can be used in an application.
Finally, after describing how to add and read database entries into the application
and back to the server, he finishes his book explaining how to visualize the data in
different charts and importing to or exporting from the database.
By using the carefully described features introduced in this book, you too can use
this great architecture to build your own future applications.
Stefan Stölzle
Sr. Solutions Engineer - Professional Services
Sencha, Inc.
www.sencha.com
About the Author
Kazuhiro Kotsutsumi was born in Sapporo, Japan in 1979. He started using
C/C++ at the age of 14 and proceeded to learn MASM, Delphi, ActionScript, PHP,
C#, Perl, and so on.
After working for a web systems development company while enrolled at college,
he began programming built-in functions for cell phones.
Having worked as a Project Manager and a freelance programmer for one year,
he established his company Xenophy CO., LTD in 2006.
Xenophy has always offered a variety of IT web solutions and has become
synonymous with the promotion and expansion of Sencha in Japan.
Currently, Xenophy is a Sencha Reseller and the official Sencha training partner
in Japan. In September 2013, Xenophy announced the launch of Sencha Official
Training in Japan, a fully localized course with Sencha's official training materials
adapted for the Japanese market.
He has already published two Sencha Ext JS guides in Japanese, including Sencha
EXT JS 4 – A Practical Developing Guide and he recently co-authored a Sencha
Touch guide.
I would like to thank Yuuya Tanaka, Kazuhiro Yasunaga,
Hisashi Nakamura, and Tom Miyagawa Coulton for making
this book possible with their hard work and help.
About the Reviewers
Gagandeep Singh is a Software Engineer with five years' experience in
distributed systems and data-driven web application development. He has
expertise in Java and JavaScript. He holds a Master's degree in Computer
Science from the University of Florida.
He started his career with Infosys, then moved on to Siemens Research,
and is now working with WalmartLabs.
Adrian Teodorescu is a professional software developer who has been
working with Sencha's frameworks since 2009. He has developed plugins,
extensions, and apps with both Ext JS and Sencha Touch. You can check
out some of his work on his website at www.mzsolutions.eu.
Li Xudong is a frontend developer in Beijing, China. He is skilled in JavaScript,
CSS, HTML, node.js, and Python, and wants to make things better.
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Table of Contents
Preface 1
Chapter 1: Data Structure 5
The structure of the application – User, Customer, Quotation,
Quotations, Bill, and Bills 6
The user 7
The customer 7
Quotation and Quotations 8
Quotation 9
Quotations 9
Bill and Bills 10
Bill 10
Bills 10
Creating and dealing with the customer structure tables 11
The User table 11
The Customer table 11
The Quotation table 12
The Bill table 13
Creating each operation and testing 13
User authentication 13
Selecting the user list 14
Adding users 14
Updating the user information 14
Deleting users 15
The Customers table 15
The customer information list 15
Selecting the quotation list 16
Items 16
