apt-get install librmagick-ruby1.8 apt-get install libmagickwand-dev gem install rmagick The last command will spit out a bunch of "No definition" comments. There are no rdocs available and this is why.

r = /https?:\/\/[\S]+/i you_string.gsub(r, '') Here's the rubular regex to play around with yourself http://rubular.com/r/SRKkYrW4IJ

Git can track the file permissions on your source. This can be good, but for small projects on a webserver where permissions change from time to time, and permissions on development app don't match or matter anyway, it's often easier to just skip this che...

If you're using Sinatra and you want to use rake to run your test suite, you will need to create a Rakefile and put this in it. require 'rake/testtask' task :default do ENV['RACK_ENV'] = 'test' Rake::Task['test'].invoke end Rake::Test...

In the parent class place the following code has_many :posts, :dependent => :destroy This used to be accomplished with has_many :posts, :dependent=>true Check out the Rails docs for more information http://api.rubyonrails.org/classes/ActiveRecord/As...