Book Image

Railo 3 Beginner's Guide

By : Mark Drew , Gert Franz, Paul Klinkenberg, Jordan Michaels
Book Image

Railo 3 Beginner's Guide

By: Mark Drew , Gert Franz, Paul Klinkenberg, Jordan Michaels

Overview of this book

<p>Railo Server is one of the quickest ways to start developing complex web applications online. Widely considered as the fastest CFML (ColdFusion Markup Language) engine, Railo allows you to create dynamic web pages that can change depending on user input, database lookups, or even the time of day.</p> <p>Railo 3 Beginner's Guide will show you how to get up and running with Railo, as well as developing your web applications with the greatest of ease. You will learn how to install Railo and the basics of CFML to allow you to gradually build up your knowledge, and your dynamic web applications, as the book progresses.</p> <p>Using Packt’s Beginner's Guide approach, this book will guide you, with step-by-step instructions, through installing the Railo Server on various environments. You will learn how to use caches, resources, Event Gateways and special scripting functions that will allow you to create webpages with limitless functionality. You will even explore methods of extending Railo by adding your own tags to the server and building custom extensions. Railo 3 Beginner's Guide is a must for anyone getting to grips with Railo Server.</p>
Table of Contents (16 chapters)
Railo 3
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface

The <cfscript> tag


The reduction of code we saw in the previous code example was achieved using the other language syntax that Railo Server supports. This syntax is known as CFScript.

Similar to the <SCRIPT> tag in HTML, we are able to use the <cfscript> tag in our CFML templates to use the CFScript syntax. This is very similar to ECMAScript (or JavaScript) in its general notation.

You can think of it as CFML, but without the <cf at the start of a tag and the > at the end. Or another way of looking at it is that we are calling the <cfset> tag without having to use the <cfset> tag.

Let's look at some of the differences between the tag-based CFML language and its CFSC counterpart.

Loops

Loops are used for many things in Railo, but in the tag-based CFML language, the main tag for all of the looping interactions is the <cfloop> tag.

Looping lists

Lists are the simplest type of data structures that you can have in CFML, it's basically a long string delimited...