Ruby on Rails Jump Start

19 בספטמבר 2011

I have recently completed to develop the first topic in my Ruby on Rails course. You can find the slides available for free personal usage at www.abelski.org. The following video clips explain how to install the required software in order to develop web applications using Ruby on Rails. The following video clips explain how to develop a basic Hello World application that utilizes Ruby on Rails support for MVC.
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Sencha Touch Jump Start

The PHP Cross Platform Web Applications course I teach in HIT coveres some of the newest web technologies. The next meeting covers Sencha Touch. It is a Java Script library that allows us to develop web applications optimized for touch screen devices, such as mobile telephones and tablets. In order to assist my students with the understanding of this topic I chose to create two video clips that explain how to download Sencha Touch, how to execute the code samples it includes and how to develop a simple Hello World application. The source code is available for free download in...
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The Singleton Design Pattern in PHP

18 בספטמבר 2011

The singleton design pattern provides us with a solution for ensuring that a given class won't be instantiated more than than one. This video clip explains it using a code sample in PHP. Unlike web applications developed in .NET when using PHP we cannot maintain the objects we create on the server side in between the requests. Therefore, many will claim that implementing this pattern in PHP is considered as an anti pattern. You can find the source code available for free download in my PHP Design Patterns course at www.abelski.org.
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The Proxy Design Pattern in PHP

The proxy design pattern provides us with a class that functions as an interface to something else. We usually use this pattern in order to deffer the creation of heavy objects. This video clip explains it using a code sample in PHP. You can find the source code available for free personal usage in my PHP Design Patterns course at www.abelski.org.
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C# WebClient & Query String

Working with a WebClient object it is possible to set a query string we want to be sent over to the server the WebClient refers to. This short video clip shows how to do it. This video clip was prepared as part of the "C# Fundamentals" course available for free at www.abelski.com.
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The Factory Design Pattern in PHP

The factory design pattern enables the creation of new objects without having the need to specify the classes that should be instantiated. The following video clip explains this pattern and overviews a sample for its implementation in PHP. The source code is available for free download in my PHP Design Patterns course at www.abelski.org.
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The Prototype Design Pattern in PHP

The prototype design pattern simplifies our way when we need to get a new object which is a duplicate of another object we already have. The following video clip explains it using a code sample in PHP. You can find the source code available for free download in my 'PHP Design Patterns' course, which is available for free personal usage at www.abelski.org.
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The Builder Design Pattern in PHP

The builder design pattern abstract the steps we have when constructing a new object in a way that allows us to maintain separated different implementations for those steps, also known as builders. The following video clip explains it using a code sample in PHP. You can find the source code available for free download in my 'PHP Design Patterns' course, which is available for free personal usage at www.abelski.com.
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