zenkay

Ruby, RVM and Mountain Lion

Key problems

Mountain Lion (10.8) has three main difference compared to Lion (10.7):

• XCode 4.4 does not install Command Line Tools by default
• X11 isn't available anymore
• The installed version of OpenSSL has some bugs

How to work around

marcomd

#Session controller provides a token
#/controllers/api/sessions_controller.rb
class Api::SessionsController < Devise::SessionsController
  before_filter :authenticate_user!, :except => [:create]
  before_filter :ensure_params_exist, :except => [:destroy]
  respond_to :json

  def create
    resource = User.find_for_database_authentication(:email => params[:user_login][:email])
    return invalid_login_attempt unless resource

georgeredinger

Ruby on Rails development setup on Ubuntu 12.04

System update

# change mirror to ubuntu.osuosl.org first
sudo apt-get update

Install common libraries

sudo apt-get install build-essential libreadline-dev libssl-dev zlib1g-dev libxml2-dev libxslt-dev

leesmith

Ruby on Rails development setup on Ubuntu 12.04

System update

# change mirror to ubuntu.osuosl.org first
sudo apt-get update

Install common libraries

joakimk

require 'faye'

Faye::WebSocket.load_adapter('thin')
use Faye::RackAdapter, :mount => '/faye', :timeout => 25

require ::File.expand_path('../config/environment',  __FILE__)
run App::Application

troelskn

require 'gollum/frontend/app'
require 'digest/sha1'

class App < Precious::App
  User = Struct.new(:name, :email, :password_hash, :can_write)

  before { authenticate! }
  before /^\/(edit|create|delete|livepreview|revert)/ do authorize_write! ; end

  helpers do

jrochkind

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

marshluca

require 'benchmark'

def explicit
  return "TEST"
end

def implicit
  "TEST"
end

marshluca

#!/usr/bin/env ruby
require 'rubygems'
require 'daemons'
dir = File.expand_path(File.join(File.dirname(__FILE__), '..'))

daemon_options = {
  :multiple   => false,
  :dir_mode   => :normal,
  :dir        => File.join(dir, 'tmp', 'pids'),
  :backtrace  => true

marshluca

module Paperclip
  class Cropper < Thumbnail
    def transformation_command
      if crop_command
        crop_command + super.join(' ').sub(/ -crop \S+/, '').split(' ') # super returns an array like this: ["-resize", "100x", "-crop", "100x100+0+0", "+repage"]
      else
        super
      end
    end