Article Network

How to Install VirtualBox Guest Additions

by Alfonso V. Romero | April 2010 | Beginner's Guides Linux Servers Open Source

In this article by Alfonso V. Romero, author of VirtualBox 3.1: Beginner's Guide, you shall learn what the Guest Additions are and how to install them on Windows, Linux, and Open Solaris virtual machines.

Read How to Install VirtualBox Guest Additions in full

Working with Value Extractors and Simplifying Queries in Oracle Coherence 3.5

by Aleksandar Seovic Mark Falco Patrick Peralta | April 2010 | Oracle

Usually you can access data in the Coherence cache using identity-based operations, such as get and put. In many cases this will be exactly what you need, but there will also be many other situations where you either won't know an object's identity or you will simply need to look up one or more objects based on attributes other than the identity.

In this article by Aleksandar Seovic, Mark Falco and Patrick Peralta, authors of Oracle Coherence 3.5, we will cover:

  • Built-in filters for querying the Data Grid
  • Implementing a custom value extractor
  • Implementing a FilterBuilder class that will allow us to define the queries in a simpler way
Read Working with Value Extractors and Simplifying Queries in Oracle Coherence 3.5 in full

Flash Video Encoding, Skinning and Components in Wordpress

by Peter Spannagle Sarah Soward | April 2010 | Content Management Open Source Web Development WordPress

In this article by Peter Spannagle and Sarah Soward, authors of the book Wordpress and Flash 10x Cookbook, we will cover the following:

  • Encoding with the Flash Media Encoder
  • Using preset skins
  • Hiding and Showing preset skins
  • Using Video Component buttons
  • Modifying Video Component buttons to customize your own skin
Read Flash Video Encoding, Skinning and Components in Wordpress in full

Database Interaction with Codeigniter 1.7

by Adam Griffiths | April 2010 | Open Source PHP Web Development

Having seen form validation in the previous article, we will now cover database interaction. Databases are the backbone behind any Web application. Without a database, you'd have nowhere to hold all of your data, and SQL queries can become long and cumbersome to type out. Thankfully, CodeIgniter gives us a brilliantly simple way to interact with our Database. The database library also makes changing between database types—from MySQL to Oracle, for example—easier, because it acts as a wrapper and provides many functions for us to use on the database.

In this article by Adam Griffiths, author of CodeIgniter 1.7 Professional Development, you will:

  • Perform database queries with the database library
  • Return query results using the database helper functions
  • Create queries using the active record library
  • Learn how to cache active record queries
  • Modify database tables using database forge
Read Database Interaction with Codeigniter 1.7 in full

Form Validation with Codeigniter 1.7

by Adam Griffiths | April 2010 | Open Source PHP Web Development

Form validation is an important part of any application. Take a look at your favorite web application, notice that there are many forms in these web apps, and it is important that they be secure. It is also important that you have rules that should be adhered to; this also helps to keep a layer of security.

In this article by Adam Griffiths, author of CodeIgniter 1.7 Professional Development, you will:

  • Learn how the form validation process works
  • Build a contact form
  • Apply validation rules to the form's input fields
  • Use callbacks to create your own rules

We will cover database interaction seperately.

Read Form Validation with Codeigniter 1.7 in full

Moodle 1.9 Theme Design: Customizing the Header and Footer (Part 1)

by Paul James Gadsdon | April 2010 | Moodle Open Source Web Development

Packt are due to launch a new Open Source brand, into which future Moodle titles will be published. For more information on that launch, look here.

This article will cover the steps needed to make changes to the header.html and footer.html files in the theme directory of your Moodle site. You will start by making some small changes, such as changing the logo and the title text so that you can see how easy it is to customize the header in Moodle. You will also look at some basic HTML recommendations to keep your Moodle theme standards-compliant. After this, you will move on to changing the footer, including removing the Moodle logo and the login information links and adding your own copyright or footer text. Finally, in this article, you will learn to check that your changes are standards-compliant and look similar in more than one web browser.

In this two-part article by Paul James Gadsdon, author of Moodle 1.9 Theme Design: Beginner's Guide, you shall:

  • Replace the Moodle logo with your own
  • Replace the title text with your own
  • Replace the footer logo and remove the login link
  • Add your own customized footer information
  • Download a different web browser
  • Test your changes in several web browsers
Read Moodle 1.9 Theme Design: Customizing the Header and Footer (Part 1) in full

Creating Data Forms in Silverlight 4

by Frank LaVigne | April 2010 | Beginner's Guides Microsoft Web Development Web Graphics & Video

Packt are due to launch a new Enterprise brand, into which future Silverlight titles will be published. For more information on that launch, look here.

In this article by Frank LaVigne, author of Microsoft Silverlight 4 Business Application Development, we shall create a form for allowing users to submit information.

Read Creating Data Forms in Silverlight 4 in full

Creating a WCF Service, Business Object and Data Submission with Silverlight 4

by Frank LaVigne | April 2010 | Beginner's Guides Microsoft Web Development Web Graphics & Video

Packt are due to launch a new Enterprise brand, into which future Silverlight titles will be published. For more information on that launch, look here.

In this article by Frank LaVigne, author of Microsoft Silverlight 4 Business Application Development, we shall:

  • Create a WCF service and business object for receiving data
  • Submitting data to the server
Read Creating a WCF Service, Business Object and Data Submission with Silverlight 4 in full

Data Validation in Silverlight 4

by Frank LaVigne | April 2010 | Beginner's Guides Microsoft Web Development Web Graphics & Video

Packt are due to launch a new Enterprise brand, into which future Silverlight titles will be published. For more information on that launch, look here.

In this article by Frank LaVigne, author of Microsoft Silverlight 4 Business Application Development, we shall:

  • Bind the data from a data object to Silverlight controls
  • Validate data and display feedback to the user
Read Data Validation in Silverlight 4 in full

Moodle 1.9 Theme Design: Customizing the Header and Footer (Part 2)

by Paul James Gadsdon | April 2010 | Moodle Open Source Web Development

Packt are due to launch a new Open Source brand, into which future Moodle titles will be published. For more information on that launch, look here.

Read Part One of Moodle 1.9 Theme Design: Customizing the Header and Footer here.

Having dealt with customizing the header in the first part of this two-part article by Paul James Gadsdon, author of Moodle 1.9 Theme Design: Beginner's Guide, we will further look into customizing the footer and also cover browser compatability.

Read Moodle 1.9 Theme Design: Customizing the Header and Footer (Part 2) in full

Tracking SQL Queries for a Request using Django

by Karen M. Tracey | April 2010 | Content Management Open Source Web Development

Packt is due to launch a new Open Source brand, into which future VirtualBox titles will be published. For more information on that launch, look here

In this article by Karen M. Tracey, author of the book Django 1.1 Testing and Debugging, we will develop a template code that can be used to include information about all of the SQL queries needed to render a page in the page itself.

Read Tracking SQL Queries for a Request using Django in full

Developing SOA Applications using POJOs

by David Salter | April 2010 | Java

PoJos – Plain Old Java Objects, are, as the name describes, simple, ordinary Java objects. They do not have to be derived from a specific class, nor do they have to implement any specific interfaces. In the modern world of Java EE development where the latest frameworks have made enterprise development easier, wouldn't it be good if we could develop SOA based applications using PoJos? Fortunately, GlassFish ESB (OpenESB) allows us to do this using the PoJo Service Engine. In this article by David Salter, author of Building SOA-Based Composite Applications Using NetBeans IDE 6 and Seam 2.x Web Development, we will cover:

  • GlassFish ESB
  • Creating a PoJo and Deploying to GlassFish ESB
  • Creating A SOAP Binding for PoJos
  • Testing the Composite Application
Read Developing SOA Applications using POJOs in full

Handling Invalid Survey Submissions with Django

by Karen M. Tracey | April 2010 | Content Management Open Source Web Development

In this article by Karen M. Tracey, author of the book Django 1.1 Testing and Debugging, we will see what happens when an invalid survey is submitted.

Read Handling Invalid Survey Submissions with Django in full

The Django Debug Toolbar

by Karen M. Tracey | April 2010 | Content Management Open Source Web Development

In this article by Karen M. Tracey, author of the book Django 1.1 Testing and Debugging, we will see that the Django Debug Toolbar is a very useful general purpose debugging tool for Django applications. It lets you see the SQL queries that were needed to produce a page. We will also see, it goes far beyond that, providing easy access to much more information about the SQL queries and other aspects of request processing.

Read The Django Debug Toolbar in full

Animation in Silverlight 4

by Frank LaVigne | April 2010 | Beginner's Guides Microsoft Web Development Web Graphics & Video

Packt are due to launch a new Enterprise brand, into which future Silverlight titles will be published. For more information on that launch, look here.

In this article by Frank LaVigne, author of Microsoft Silverlight 4 Business Application Development, we shall create an interactive logo using Silverlight and incorporate it into the website.

Read Animation in Silverlight 4 in full
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