Blog Change

Well, for now I've decided it's too much of a hassle to maintain a separate blog strictly for Rails, so I'll be posting everything to my main tech blog, kl93. See you there...

Install Ruby without openssl

When installing Ruby on an old machine, I got this error:


ruby make[1]: *** [ossl_ssl.o] Error 1


Other than installing openssl, which wasn't option, install ruby without openssl:


$ ./configure prefix=/home/doug/bin/ruby --without-openssl


Autotesting Javascript in Rails

From Dr. Nic's Blog:

Autotesting Javascript in Rails

Upgrading to specific version of Rails

sudo gem install -v=2.0.1 rails --include-dependencies

Ruby Database Connectivity

After mostly doing RoR work for the last several months, lately I've had to write a few command line scripts that interact with MySQL.

I came across an article by Steve Litt on Troubleshooters.com, which I found useful for comparing the mysql driver, dbi, and ActiveRecord:

Ruby Database Connectivity

And here a few articles by Paul DuBois on Ruby and database connectivity:

Using the Ruby MySQL Module

Using the Ruby DBI Module

My First RubyGem

I rewrote and converted one of my old sourceforge projects from C++ to a Ruby Gem:

http://delaycalc.rubyforge.org/

Nothing too earth shattering, but it's certainly nice to get an open source project on Rubyforge....

If you need to calculate delay times for digital delay processors for a given bpm, then please give it a go:

$ sudo gem install delaycalc

RubyGem - HighLine

I was looking for a way to prompt a user for input on the console and ran across the RubyGem HighLine. It does a lot more than this, but here's how to capture STDIN from the console:

#!/usr/local/bin/ruby
require 'rubygems'
require 'highline/import'

username = ask("Enter your username:  ") { |q| q.echo = true }
password = ask("Enter your password:  ") { |q| q.echo = "*" }

Here's the output on the console:

$ ruby highline.rb 
Enter your username:  doug
Enter your password:  ******

Get it here:

HighLine

or simply install the gem the normal way:

$ sudo gem install highline