Book Image

Programming with CodeIgniter MVC

Book Image

Programming with CodeIgniter MVC

Overview of this book

The CodeIgniter Model-View-Controller framework provides genius simplicity, flexibility, and efficient resource usage, boosting performance and reusability. "Programming with CodeIgniter MVC" reviews the unique features of CodeIgniter using simple, easy-to-follow, and practical examples. Programming with CodeIgniter MVC provides a simple step-by-step guide to efficiently utilizingthe CodeIgniter MVC framework for developing web applications. This book is packed with engaging examples to understand the usage of controllers, libraries, and (Codeigniter) CI Models. This book commences with a quick discussion of the CodeIgniter Integration with  external plugins such as Flickr API, Google Maps and more will be reviewed with clear usage examples. It will then cover CI naming convention rules, mandatory and optional configurations, and usage within a CI project. It will also cover user defined configurations. By the end of this book, you will not only understand user-defined libraries in a CI framework, but also their services, role, usage, and scope with the help of an example-based approach. The book also covers helpers, models, and views, as well as their usage. Using this book, youwill soonbe able to develop feature-rich web applications using the CodeIgniter MVC framework. "Programming with CodeIgniter MVC" is a one-stop solution to developing solutions with CodeIgniter MVC.
Table of Contents (15 chapters)
Programming with CodeIgniter MVC
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Appendix
Index

CI controller use cases


There are several different use cases for a CI user-defined controller. Commonly, the CI controller will handle initiating/rendering HTML pages, enable us to let the user navigate and view the different web application pages we defined. However, the controller may also provide other services, such as AJAX server-side controller, serving asynchronously the client-side browser requests, and commonly return back the JSON formatted data instead of a rendered view. The exact scope and usage of AJAX is not part of the CI framework, but it is very useful standard de-facto technology. To learn more about AJAX, please refer to AJAX (Asynchronous JavaScript and XML) on Wikipedia http://en.wikipedia.org.

The main usage categories for our controller in a CI framework are as follows:

  • Rendering views: These type of controllers mostly performs some preparations for data and render the requested view, along with the prepared data, to be displayed to the user for the next user session...