luisguzman02

# config/deploy.rb

namespace :upstart do
  desc 'Generate and upload Upstard configs for daemons needed by the app'
  task :update_configs, except: {no_release: true} do
    upstart_config_files = File.expand_path('../upstart/*.conf.erb', __FILE__)
    upstart_root         = '/etc/init'

    Dir[upstart_config_files].each do |upstart_config_file|
      config = ERB.new(IO.read(upstart_config_file)).result(binding)

luisguzman02

# Dealing with namespaces in Nokogiri.
#
# First thing you must do is abandon what you're used to with Builder,
# namespaces aren't just attributes on an element, they uniquely identify
# what sort of element you are building and, as such, you are better off
# specifying them manually.
#
# The key here is accessing the Nokogiri::XML::Element being built with
# b.parent, then you can set the namespace (distinguished by an element
# with a prefix such as "soap12:Envelope") or add a default namespace

luisguzman02

Use these rapid keyboard shortcuts to control the GitHub Atom text editor on Mac OSX.

Key to the Keys

• ⌘ : Command key
• ⌃ : Control key
• ⌫ : Delete key
• ← : Left arrow key
• → : Right arrow key
• ↑ : Up arrow key

luisguzman02

# app/models/user.rb
class User < ActiveRecord::Base
  validates :zip_code, presence: true, zip_code: true
end

luisguzman02

# lib/tasks/db.rake
namespace :db do

  desc "Dumps the database to db/APP_NAME.dump"
  task :dump => :environment do
    cmd = nil
    with_config do |app, host, db, user|
      cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
    end
    puts cmd

luisguzman02

# This custom matcher can be used to test state machine
#
# Examples
#
#   it { should have_event(:status, :event_name, [:state1, :state2] => [:state3, :state4]) }
#   it { should have_event(:status, :event_name, {
#                                                   :state1 => :state3,
#                                                   :state1 => :state4,
#                                                   :state3 => :state3,
#                                                   :state2 => :state4

luisguzman02

http://www.zhlwish.com/2012/07/23/rails-activesupport-concern/

# autoload concerns
module YourApp
  class Application < Rails::Application
    # config.autoload_paths += %W(
    #     #{config.root}/app/controllers/concerns/
    #      #{config.root}/app/models/concerns/
    #   )

luisguzman02

#
# Wide-open CORS config for nginx
#
location / {

     if ($request_method = 'OPTIONS') {

        add_header 'Access-Control-Allow-Origin' '*';
        
        #

luisguzman02

Game of Life

An implementation of Conway's Game of Life in 140 characters of Ruby.

Author

Created by Simon Ernst (@sier).

luisguzman02

Capybara

save_and_open_page

Matchers

have_button(locator)