Book Image

Ext JS Data-driven Application Design

By : Kazuhiro Kotsutsumi
Book Image

Ext JS Data-driven Application Design

By: Kazuhiro Kotsutsumi

Overview of this book

Sencha Ext JS is an industry leader for business-standard web application development. Ext JS is a leading JavaScript framework that comes with a myriad of components, APIs, and extensive documentation that you can harness to build powerful and interactive applications. Using Ext JS, you can quickly develop rich desktop web applications that are compatible with all major browsers. This book will enable you to build databases using information from an existing database with Ext JS. It covers the MVC application architecture that enables development teams to work independently on one project. Additionally, the book teaches advanced charting capability, enabling developers to create state-of-the-art charts just once. These charts are compatible with major browsers without the need to rely on plugins. This hands-on, practical guide will take you through the mechanics of building an application. In this instance, we will use this application to manage existing data structures in the form of a database. You will begin by making SQL and tables in MySQL and will then move on to developing the project environment and introducing Sencha Cmd. You will learn to create a form to input data and monitor the state of the input, while seeing how Ext Direct will validate the form on the server side. Finally, you will have a working application that is ready for you to customize to suit your needs. You can also use it as a template for any future projects when you need a similar database.
Table of Contents (14 chapters)
Ext JS Data-driven Application Design
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating the login page


Let's start by creating the login page for this application. Here we will perform a simple implementation using PHP. We will create login.php and logout.php. However, we will not go into too much detail about the login logic here because this book is focused on Ext JS and not PHP.

Create the variable you will input in SQL and then just pull the user information from the database.

The source code is very long, so please go to the source file to view the login.php file from the 01_making_the_login folder and logout.php from 01_making_the_login.

Store the user data for the session with the key USERINFO. Again, to be able to perform a login check, change index.html to index.php and run the login check. Apart from the PHP code at the beginning, it's the same as index.html (source file: 01_making_the_login/index.php):

<?php
session_start();
if(!isset($_SESSION['USERINFO'])) {
  header("Location: ./login.php");
}
?>
<!DOCTYPE HTML>
...
</html>