Nomadicoder » Computers

Quick RVM Rubinius 1.0.0 Install Recipe

Steven — Tue, 25 May 2010 18:54:42 +0000

Here are the quick and dirty commands I used to install Rubinius 1.0.0 with Rails, RSpec, and Sinatra in RVM on Mac OS X. ~~So far I haven’t been able to get Cucumber to install.~~

The problem has been fixed with the 1.0.1 release. I have added commands to install Cucumber support.


rvm install rbx
rvm rbx
gem update --system --no-ri --no-rdoc
gem update --no-ri --no-rdoc
gem install rails --no-ri --no-rdoc
gem install sqlite3-ruby --no-ri --no-rdoc
gem install rspec --no-ri --no-rdoc
gem install rspec-rails --no-ri --no-rdoc
gem install cucumber --no-ri --no-rdoc
gem install cucumber-rails --no-ri --no-rdoc
gem install sinatra --no-ri --no-rdoc

Ordering on a Field in a Linked Table

Steven — Tue, 02 Feb 2010 05:55:19 +0000

I attempted to order my runners based on their assigned stage number. The stage number is linked by the stage_id in the schema and the class shows that it belongs to a stage:


class Runner > ActiveRecord::Base
  belongs_to :stage
end

At first glance, I figure I would simply order on the stage number:


def self.find_all_runners
  find ( :all, :order => "stage.number" )
end

But this resulted in a “no such column” error:

SQLite3::SQLException: no such column: stages.number: SELECT * FROM “runners” ORDER BY stages.number

I found the solution in Ryan Daigle’s blog. In order for this to work you need a :joins to the linked table so Active Record knows the origin of stage.number. In my application, the find should be:


def self.find_all_runners
  find ( :all, :joins => :stage, :order => "stages.number" )
end

What You Can Learn From Google Search Results

Steven — Thu, 18 Dec 2008 18:44:05 +0000

For some reason, the Solution Configuration tool bar has gone missing from Visual Studio 2005. I googled the terms: Visual Studio 2005 Solution Configuration Missing. When the first hit that comes up is an entry from “I Hate Microsoft” blog, followed by a page of relevant hits, you have to figure someone at Microsoft made a really silly decision.

Update: The replies to this are real gems, as well as useful.

IT Conversations: Kent Beck

Steven — Wed, 27 Aug 2008 12:38:42 +0000

The Conversations Network recently released an IT Conversations show I did post production on. Kent Beck tells stories about how his pioneering work in Test Driven Development, Design Patterns and Extreme Programming. Link.

Technorati Tags: Programming

Some Photos Offline

Steven — Wed, 13 Feb 2008 17:51:48 +0000

Some of my photos are unavailable. They are hosted on Zooomr.com. Zooomr is in the process of upgrading and some images are offline, and it appears my images are in that category.

Los Angeles City Fire Department Gets It When it Comes to the Web

Steven — Sun, 25 Nov 2007 14:59:46 +0000

Brian Humphrey, from the Los Angeles City Fire Department’s Media and Public Relations, really understands the web and how a Fire Department can put it to use. First he started twittering major incidents. Lately, he’s been blogging complete reports, such as this dramatic rescue.

Technorati Tags: blog, fire, technology

PowerBook Charger Problem Solved?

Steven — Sun, 17 Jun 2007 01:48:36 +0000

For the last few months, my powerbook has been suffering from balky charger. The LED indicator on the power connection has been flickering between charging and charged (amber and green). The computer itself has been switching between charge and battery power. While it’s doing this, it’s been making popping sounds through the speaker. Sometimes the power cable gets pretty hot. I’ve been trying to find the solution to this problem for three or four months.

Today, I came across a very interesting Hot Topic in the Apple Powerbook G4 Support page entitled “The AC power adapter won’t charge my battery.” The real title of the article is “Portable Computers: Troubleshooting power adapters” which makes more sense as the article covers three power adapter problems, in particular, “The adapter only charges the computer intermittently.”

Apparently when the charger overheats, gets an over voltage, or senses ground noise the adapter shuts down. In my case, acts erratically. Unplugging it from the wall and letting it rest for 60 seconds seems to have done the trick. It’s working fine now. The power manager is stable, the battery is charging, and the power cable is cool.

New Drupal Website

Steven — Sat, 31 Mar 2007 14:57:59 +0000

On Monday, I launched my second public Drupal website for our Baker to Vegas support team.
[Update 4/11/07 - We are now Mojave RATS]

Technorati Tags: AmateurRadio, Drupal, HamRadio, Drupal