Book Image

eZ Publish 4: Enterprise Web Sites Step-by-Step

Book Image

eZ Publish 4: Enterprise Web Sites Step-by-Step

Overview of this book

eZ Publish provides developers with a structure to build highly impressive applications and then quickly deploy them into a live environment. eZ Publish is complex, with a steep learning curve, but with the right direction it offers great flexibility and power. What makes eZ Publish special is not the long list of features, but what's going on behind the scenes. Created specifically for newcomers to eZ Publish, and using an example Magazine web site, this book focuses on designing, building and deploying eZ Publish to create an enterprise site quickly and easily. This tutorial takes eZ Publish's steep learning curve head-on, and walks you through the process of designing and building content-rich web sites. It makes the unrivalled power and flexibility of eZ Publish accessible to all developers. The book is organized around technical topics, which are handled in depth, with a general progression that follows the learning experience of the reader, and features a single magazine web site project from installation to completion and deployment. This hands-on guide helps the reader to understand the Content Management System to create a web 2.0-ready web site by creating new extensions or overriding the existing ones. In turn, it helps you to become confident when working in the eZ Publish administration area and offers an environment in which you can practice while working through the chapters.
Table of Contents (20 chapters)
eZ Publish 4: Enterprise Web Sites Step-by-Step
Credits
About the Authors
About the Reviewer
Preface
Advance Debugging

What not to do in a template


The Achilles' heel of eZ Publish is the template system subframework that cannot, and should not, be overrated, and that is used as a true programming language.

For this reason, we should not have templates with very complex logic. The templates should only render HTML data, and not involve any kind of business logic.

If the predefined objects of eZ Publish that we can use in our templates are not sufficient to publish the data that we want to represent, we should move the business logic either inside an operator or function, or create a new module.

A classic error that many developers make is to perform many queries in a single template file. It is not recommended to have more than two queries within the same template. If we need more than two queries we have to use a template operator or a custom fetch function, which are much faster to execute.

For example, if we have to print the children of a node, we should use the $node.children attribute, rather than making...