eligrey

/*
 * object.watch polyfill
 *
 * 2012-04-03
 *
 * By Eli Grey, http://eligrey.com
 * Public Domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
 */

skojin

# Add all gems in the global gemset to the $LOAD_PATH so they can be used in rails3 console with bundler
if defined?(::Bundler)
  $LOAD_PATH.concat Dir.glob("#{ENV['rvm_path']}/gems/#{ENV['rvm_ruby_string']}@global/gems/*/lib")
end

gilesbowkett

# this monkey-patches code defined in railties-3.1.0.rc1/lib/rails/generators/migration.rb
# (obviously, this might differ very slightly in the latest release candidate)

module Rails
  module Generators
    module Migration
      module ClassMethods
      # differs from the "real" version by only one line
      def migration_template(source, destination=nil, config={})
        destination = File.expand_path(destination || source, self.destination_root)

jcasimir

Transactions

As your business logic gets complex you may need to implement transactions. The classic example is a bank funds transfer from account A to account B. If the withdrawal from account A fails then the deposit to account B should either never take place or be rolled back.

Basics

All the complexity is handled by ActiveRecord::Transactions. Any model class or instance has a method named .transaction. When called and passed a block, that block will be executed inside a database transaction. If there's an exception raised, the transaction will automatically be rolled back.

Example

spicycode

# 0 is too far from ` ;)
set -g base-index 1

# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on

#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000

TeWu

TCP client and multithreaded server in 14 lines of Ruby code

Server:

require "socket"
server = TCPServer.open(2626)
loop do
	Thread.fork(server.accept) do |client| 
 client.puts("Hello, I'm Ruby TCP server", "I'm disconnecting, bye :*")

jwo

class Api::RegistrationsController < Api::BaseController
  
  respond_to :json
  def create

    user = User.new(params[:user])
    if user.save
      render :json=> user.as_json(:auth_token=>user.authentication_token, :email=>user.email), :status=>201
      return
    else

ryanlecompte

# First the end result of what we want:

class Foo
  before_hook :whoa
  before_hook :amazing

  def test
    puts "This is kinda cool!"
  end

uhlenbrock

load 'deploy/assets'

namespace :deploy do
  namespace :assets do
    desc 'Run the precompile task locally and rsync with shared'
    task :precompile, :roles => :web, :except => { :no_release => true } do
      %x{bundle exec rake assets:precompile}
      %x{rsync --recursive --times --rsh=ssh --compress --human-readable --progress public/assets #{user}@#{host}:#{shared_path}}
      %x{bundle exec rake assets:clean}
    end

santiycr

import junit.framework.Assert;
import junit.framework.TestCase;
import org.openqa.selenium.*;
import org.openqa.selenium.remote.*;
import java.net.URL;
import java.util.concurrent.TimeUnit;

public class TestingUploadSe2Sauce extends TestCase {
    private RemoteWebDriver driver;