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On 9/19 was one of three board member presenters who shared the OMNI Dinner Meeting presentation time, went last and presented an overview of Ruby on Rails, followed by a demonstration of building a simple application with CRUD capabilities provided by first a dynamic and then a generated scaffold. Was intending to add another linked table in the demo, but got a little off track and didn't really have time to do so.
To finish up, showed my current version of the tutorial application from "Agile Web Development with Rails" which includes AJAX replacements of page elements (coded with a couple lines of Ruby that generate the Javascript and XML needed to make it happen) and Javascript effects from the Scriptaculous library add-ins like "blind down" (gradually showing a page element like in a powerpoint presentation) and "highlight element" (a color brighten and fade) that were also implemented in just a couple of lines of Ruby code that makes use of others' work to generate on the client the Javascript defined on the server.
Also, while presenting this on my Mac, the "ringer" in the audience with some Rails knowledge pointed to a peecee environment known as "Instant Rails" that along with tutorials like Curt Hibbing's "Rolling with Ruby on Rails" at onlamp.com could very easily move someone who's learned a bit from reading about this stuff to doing it. It's...
http://instantrails.rubyforge.org/
...a one-stop Rails runtime solution containing Ruby, Rails, Apache, and MySQL, all pre-configured and ready to run. No installer, you simply drop it into the directory of your choice and run it. It does not modify your system environment.
No less impressed with RoR, still moving forward with it for a couple of my own uses. The chirb (chicago ruby users group) is meeting 10/9 on the JRuby technology, which allows running Ruby in the JVM. Sun has hired the two main JRuby maintainers to work on the project full time. Hope to attend, but may have some OMNI duties related to OMNI's Day of Education on 10/10 preclude it.
http://omniuser.org/DOE2006.html --Jerome Hughes 2006 OMNI Seminar VP http://omniuser.org/DOE2006.html On Sep 29, 2006, at 11:46 AM, Nathan Andelin wrote:
During the pastfew weeks I've been dropping by Barnes and Noble in the evening, reading books on Ruby & Rails. It's becoming even more clear why a lot of developers are getting hooked on it. Interpreted runtime environments are seductive to begin with. Type in and run a statement or two and you're immediately rewarded with a response. Try something new and you immediately know whether it works, or not. No intermediate code validation, compilation, binding, or deployment steps,required. Rails providessingle command line utilities for setting up projects and generating CRUD applications. Contrast that with Wizard and WYSIWYG IDEs that require dozens of point and click operations and property settings to accomplish the samething. Free, open-sourcelanguages, runtime environments, and tools are maturing and seem to be gaining momentum. MIT's One Laptop Per Child program may lead to the production and distribution of millions of $100 linux-based laptops around the world. I get the impression that kids could use a device like that for Rails development.Contrast that with the horsepower required to run a complex IDE like WDSC. Ruby's philosophyof "convention over configuration" makes sense to me. Name your application components after your database tables and eliminate a lot of steps and a lot of code related to object-relational mapping. Contrast that with a framework like Hibernate, where you basically duplicate database meta data across runtimeenvironments using a multiplicity of configuration files. Separating codeinto Model-View-Controller components is not an option, in Rails. It's thefoundation, leading to good separation of code for maintenance. Ruby's use ofinheritance is also seductive. Building new application components is a matter of extending pre-existing framework components, leading to minimal coderequirements. People are reporting performance and scalability comparable to Java and J2EE frameworks. Nathan. -- This is the Web Enabling the AS400 / iSeries (WEB400) mailing list To post a message email: WEB400@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/web400 or email: WEB400-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/web400.
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