njvitto

#Deploy and rollback on Heroku in staging and production
task :deploy_staging => ['deploy:set_staging_app', 'deploy:push', 'deploy:restart', 'deploy:tag']
task :deploy_production => ['deploy:set_production_app', 'deploy:push', 'deploy:restart', 'deploy:tag']

namespace :deploy do
  PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
  STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

  task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
  task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

jvanderhoof

# some experimentation around generating OG, IBU, & SRM for based on beer ingredients

grains = [{:name => 'Liquid Malt Extract', :amount => 6, :measurement => 'lbs', :efficency => 1, :ppg => 36, :color => 4},
          {:name => 'Crystal Malt 60L', :amount => 1, :measurement => 'lbs', :efficency => 0.85, :ppg => 34, :color => 60}]
          
hops = [{:name => 'Fuggles', :amount => 2, :measurement => 'oz', :aau => 3.6, :time => 30},
        {:name => 'Willamette', :amount => 1, :measurement => 'oz', :aau => 4.3, :time => 10}]
      
total_size = 5
boil_size = 3

ctrochalakis

# Exception notifier (rails3) only works as a rack middleware,
# but what if you need notifications inside a rake task or a script?
# This is a quick hack around that.
#
# Wrap your code inside an exception_notify block and you will be notified of exceptions
#
# exception_notify { clear_payments }
def exception_notify
  yield
rescue Exception => exception

barinek

Ever wondered how to login as another user within Devise?

Recently we had a feature request that would provide Admins with the ability
to sign is as another user. You could imagine live demonstrations or even production
support calls where you would like to be signed in as another user, yet not
have to ask for or decrypt their current password. After stewing for a bit, we found a
pretty nice solution with Devise.

Here's the Cucumber feature...

sukima

require 'test_helper'

class CalendarControllerTest < ActionController::TestCase
  should route(:get, "/calendar").to(:action => :index)
  should route(:get, "/calendar/events").to(:action => :events)
  # Error:
  # functional/calendar_controller_test.rb:9: undefined local variable or
  # method `require_logged_in' for CalendarControllerTest:Class (NameError)
  should require_logged_in
  should require_logged_in.for(:events)

cblunt

Factory.define :application do |factory|
  factory.attachment :sample, "public/samples/sample.doc", "application/msword"
end

HenrikJoreteg

// If you don't use underscore.js, use it (http://documentcloud.github.com/underscore/)
// Then, use underscore's mixin method to extend it with all your other utility methods
// like so:
_.mixin({
    escapeHtml: function () {
        return this.replace(/&/g,'&')
            .replace(/>/g,'>')
            .replace(/</g,'&lt;')
            .replace(/"/g,'&quot;')
            .replace(/'/g,'&#39;');

zaius

ctrl-z
bg

touch /tmp/stdout
touch /tmp/stderr
gdb -p $!

# In GDB
p dup2(open("/tmp/stdout", 1), 1)
p dup2(open("/tmp/stderr", 1), 2)

BinaryMuse

require 'cgi'
require 'digest/md5'
require 'net/https'
require 'uri'

module Jekyll
  class GistTag < Liquid::Tag
    def initialize(tag_name, text, token)
      super
      @text           = text

technicalpickles

file "config/setup_load_paths.rb", <<FILE
# based on http://blog.ninjahideout.com/posts/the-path-to-better-rvm-and-passenger-integration
if ENV['MY_RUBY_HOME'] && ENV['MY_RUBY_HOME'].include?('rvm')
  begin
    rvm_path     = File.dirname(File.dirname(ENV['MY_RUBY_HOME']))
    rvm_lib_path = File.join(rvm_path, 'lib')
    $LOAD_PATH.unshift rvm_lib_path
    require 'rvm'
    RVM.use_from_path! File.dirname(File.dirname(__FILE__))
  rescue LoadError