This tutorial is about setting up environment for RubyOnRails on Ubuntu 14.04.

First of all, update & upgrade your system:

sudo apt-get update

^
sudo apt-get upgrade
^

Install git and curl:

sudo apt-get install curl

^
sudo apt-get install git-core
^

Configure git:

git config --global user.name "Your Name"

^
git config --global user.email email@example.com
^

Install RVM:

curl -sSL https://get.rvm.io | bash -s stable

^
source ~/.rvm/scripts/rvm
^
Test RVM installation correctness:

type rv...

Suppose we have some model and we want to localize it, first of all we need to now i18n_key for that model. Open rails console rails c, and run:

OurModelName.model_name.i18n_key

For example let's do that for model, defined in public_activity gem:

PublicActivity::Activity.model_name.i18n_key
#=> :"public_activity/activity"

Now, we cat easily localize it, by adding this in .yaml file:

activerecord:
  models:
    public_activity/activity: 'Our localized model name'

In the same way we can locali...

All examples here for deploy RoR application with unicorn, staging machine (where we deploys) available via ssh by ssh_key.

1. Deploy via remote_cache:

    require 'rvm/capistrano'
    require 'bundler/capistrano'
   
    set :application, '_proj_'
    set :rails_env, 'production'
    set :domain, '_user@your_deploy_domain_'
    set :deploy_to, "_path_to_#{application}"
    set :use_sudo, false
    set :unicorn_conf, "#{deploy_to}/current/config/unicorn.rb"
    set :unicorn_pid, "#{deploy_to}/shared/pids/u...
   

Install capistrano:

add to Gemfile

  group :development do
      gem 'capistrano'
      gem 'rvm-capistrano'
  end

Then cd to project root folder and run:

bundle install
capify .

setup your config/deploy.rb file, here some useful examples

cap deploy:setup #before first deploy
cap deploy:check #before first deploy
cap deploy:cold  # for first deploy
cap deploy #for subsequent deploys

Assume your database.yml file looks like this:

{: .yaml}
development:
adapter: postgresql
host: localhost
encoding: unicode
database: proj_development
pool: 5
username: proj
password:
template: template0

test:
  adapter:  postgresql
  host:     localhost
  encoding: unicode
  database: proj_test
  pool:     5
  username: proj
  password:
  template: template0

production:
  adapter:  postgresql
  host:     localhost
  encoding:...

Add repository and install Postgresql:

^
sudo sh -c "echo 'deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main' > /etc/apt/sources.list.d/pgdg.list"
^
wget --quiet -O - http://apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add -
^
sudo apt-get update
^
sudo apt-get install postgresql-common
^
sudo apt-get install postgresql-9.3 libpq-dev
^

Then make yourself a Postgresql superuser:

sudo su postgres

^
createuser your_system_login
^
psql
^
ALTER ROLE your_system_login WITH SUPERUS...

class CreateFakes < ActiveRecord::Migration
  def change
    create_table :fakes do |t|
      t.decimal :float_value, :precision => 4, :scale => 3
    end
  end
end

This will allow you to have 3 digits after the decimal point and 4 digits max.

Add in Gemfile:

group :development, :test do
  gem 'rspec-rails'
  gem 'spork-rails'
end

group :test do
  gem 'capybara'
  gem 'database_cleaner'
  gem 'email_spec'
  gem 'poltergeist'
  gem 'launchy'
  gem 'selenium-webdriver'
end

Run bundle install

Ensure your spec_helper.rb looks similar with this:

require 'rubygems'
require 'spork'
#uncomment the following line to use spork with the debugger
# require 'spork/ext/ruby-debug'

Spork.prefork do
  # Loading more in this block will cause your tests to ...

If some of your scripts don't work with turbolinks, you should do the following:

ready = ->
  #your code here
  
$(document).ready(ready)
$(document).on('page:load', ready)