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

Time for action - creating our own Railo application extension


Now that we know how to install extensions, it is about time to create our own.

An extension is a ZIP file that contains at least three files:

  1. 1. license.txt contains the license for the extension

  2. 2. Install.cfc handles the complete installation

  3. 3. config.xml contains all information about displaying the installation steps: field names, values, labels, page title, and so on

Creating the Famous Quotes App

For this exercise, we will create an application which we can then install. So let's create a Famous Quotes App:

  • Under the <Railo Install Directory>/webroot, create a folder named famousquotes.

  • Create a file quotes.txt in our famousquotes folder with the following content:

    Houston, we've got a problem...
    Oh my god, they killed Kenny!
    … and any others you can come up with, divided by a line break
    
  • Create Quote.cfc with the following content. This returns a random single line from the quotes.txt file:

    <cfcomponent>
    ...