Book Image

Magento 1.8 Development Cookbook

By : Bart Delvaux, Nurul Ferdous
Book Image

Magento 1.8 Development Cookbook

By: Bart Delvaux, Nurul Ferdous

Overview of this book

<p>Magento is an open source e-commerce platform which has all the functionality to function from small to large online stores. Its architecture makes it possible to extend the functionalities with plugins where a lot of them are shared by the community. This is the reason why the platform is liked by developers and retailers.</p> <p>A practical developer guide packed with recipes that cover all the parts of Magento development. The recipes will start with the simple development exercises and get the more advanced as the book progresses. A good reference for every Magento developer!</p> <p>This book starts with the basics. The first thing is to create a test environment. Next, the architecture, tools, files and other basics are described to make you ready for the real work.</p> <p>The real work starts with the simple things like theming and catalog configuration. When you are familiar with this, we will move on to more complex features such as module and database development. When you have survived this, we will move on to the last part of making a shop ready for launch: performance optimization and testing. This book will guide you through all the development phases of Magento, covering the most common pitfalls through its recipes.</p>
Table of Contents (19 chapters)
Magento 1.8 Development Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Working with source models


Magento works with a lot of drop-down fields that you can select in the forms of the application. Also, we can make use of drop-down fields in our custom fields.

A drop-down or multiselect field always has options that you can choose in this field. To render these options, Magento uses a class that returns the options. Such a class is called a source model.

In this recipe, we will see which source models Magento uses and how we can create a custom source model for a custom configuration field.

Getting ready

For this recipe, we will create a source model that is linked to a custom configuration field. This is done in the Packt_Helloworld module, which we will extend in this recipe.

How to do it...

The following steps describe how you can create your own source models for your form fields.

  1. The first thing that we have to create is a configuration field of the type drop-down. This has the same syntax as a normal configuration. In the system.xml file of the Packt_Helloworld...