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 the APPLICATION scope


Why don't we try that now:

  1. 1. In the <railo install directory>/webroot/ folder, create another folder called myApp

  2. 2. In the myApp folder create a file called Application.cfc.

  3. 3. Edit Application.cfc and put the following code in there:

    <cfcomponent>
    <cfset this.name = "MyApplication">
    </cfcomponent>
    
  4. 4. Save the file and now create another file called index.cfm

  5. 5. The index.cfm file is the actual file we are going to call, so let's put some code in there to make sure we are in a CFML application. Add the following code to your index.cfm:

    <cfdump var="#APPLICATION#">
    
  6. 6. You will see the application scope displayed, with a key called applicationname:

What just happened?

By simply placing a file named Application.cfc and putting some settings in there we have created a scope that is available only to the templates that are in the same folder or folders below it. This way we can make sure all the settings are inherited...