Thursday, March 1, 2012

Installing RoR 3.x on Ubuntu 10.4 with MySQL

I'm writing this as a reminder for myself.
To install Rails (3.x) on Ubuntu 10.4 with a MySQL gem do the following:

sudo su
apt-get install build-essential
apt-get install ruby rdoc libopenssl-ruby
tar zxvf rubygems-1.3.7.tgz
cd rubygems-1.3.7
ruby setup.rb
ln -s /usr/bin/gem1.8 /usr/local/bin/gem
sudo apt-get install ruby1.8-dev
gem install rails

To install the MySQL gem: 

apt-get install ruby-dev libmysql-ruby libmysqlclient-dev
gem install mysql

After creating the application using
rails new myApplicationName -d mysql
Running the rake db:migrate will result in error, since it requires a JS engine.
To fix that, edit the Gemfile in the application directory and add the following lines:

gem 'execjs'
gem 'therubyracer'

and then run
bundle install

* Another option is to install NodeJS on the machine, as the javascript engine by following these steps:
sudo apt-get install python-software-properties
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update
sudo apt-get install nodejs npm

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