Book Image

Sencha Touch Cookbook

By : Ajit Kumar
Book Image

Sencha Touch Cookbook

By: Ajit Kumar

Overview of this book

Sencha touch is a versatile HTML5-based framework for developing mobile web apps that look and feel native on touch screen devices, and with it you can write your code once and deploy it to both iOS and Android saving you both time and money. The Sencha touch cookbook has a comprehensive selection of recipes covering everything from installation right through to HTML5 geo location. The Sencha Touch Cookbook really is your one stop resource for cross platform HTML5 application development. It covers the basics such as setting up an iOS and Android development environment right through to much more complex development issues such as touch gestures, animation, rich media and geo location. Every recipe is practically focused. Maximum action. Minimum theory.
Table of Contents (17 chapters)
Sencha Touch Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Relating models using association


In an application, we generally deal with multiple types of models, for example, user, address, order, payment, account, and so on. Some models are self-sufficient. However, there will be some models that are related to each other, and there is an association which exists between them. For example, a user can have one or more addresses, a user may place one or more orders, and an order may have one or more payments made against it, and so on. In a typical relational database, we have entities and the relationship between them. The same can be achieved with models using the association mechanism provided by Sencha Touch. This recipe will demonstrate how to define associations between models, which are used by the reader, internally, to populate nested models for us.

Getting ready

Make sure that you have set up your development environment by following the recipes outlined in Chapter 1.

How to do it...

Carry out the following steps:

  1. Create and open a new file named...