Book Image

Catalyst 5.8: the Perl MVC Framework

By : Antano Solar John
Book Image

Catalyst 5.8: the Perl MVC Framework

By: Antano Solar John

Overview of this book

<p>Many web applications are implemented in a way that makes developing them difficult and repetitive. Catalyst is an open source Perl-based Model-View-Controller framework that aims to solve this problem by reorganizing your web application to design and implement it in a natural, maintainable, and testable manner, making web development fun, fast, and rewarding.<br /><br />This book teaches you how to use Catalyst to weave the various components involved in a web application, using methods and tools you personally prefer along with recommendations and details on the most popularly used objects like the DBIX ORM, TT2 Template, and Moose.<br /><br />This book will take you from how the MVC pattern simplifies creating quality applications to how Catalyst allows you to tap this power instantly. It explains advanced design patterns and concludes with the improvements that Moose brings to all this. It also incorporates valuable suggestions and feedback received from the community members and our customers. By the end of the book, you will be able to build clean, scalable, and extendable web applications. This book embodies Catalyst's philosophies of Do It Yourself and Don't Repeat Yourself.</p>
Table of Contents (16 chapters)
Catalyst 5.8
Credits
About the Author
About the Reviewer
Preface
7
Hot Web Topics
Index

TTSite


TTSite is a Catalyst View that wraps every TT template we use in a header and footer. All of this happens transparently, so we can add some prettiness to our site without writing any CSS or HTML.

TTSite isn't really officially endorsed. It might be okay to use it, but it should be noted that building your own TT base view isn't that hard.

There are a few differences from the standard TT view to be aware of. First, templates are stored in /root/src instead of /root. TTSite keeps its configuration in /root/lib, so that's where you'll want to go if you want to change the look of the site. The configuration is easy to understand—the file called header contains the TT commands that will be added to the header of the page (and so on).

For this application, we need to make a few modifications to the default setup. First, let's remove the default "message" (to display at the top of the page), so we can specify our own from a Controller. To do this, edit /root/lib/config/main, removing the block...