corntrace

#Newbie programmer
def factorial(x):
    if x == 0:
        return 1
    else:
        return x * factorial(x - 1)
print factorial(6)


#First year programmer, studied Pascal

corntrace

class BaseKlass
  cattr_accessor :map
end

class KlassA < BaseKlass
  self.map = {:a => 1, :b => 2}
end

class KlassB < BaseKlass
  self.map = {:c => 3, :d => 4}

corntrace

# Setup rvm to load ruby and gemset from ./.rvmrc

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

corntrace

     INSTALLATION

the rails application must have support for JQuery
get JQuery.Crayonbox.js at http://gelform.com/crayonbox-jquery-plugin/

add the plugin JQuery.Crayonbox.js to /public/javascript folder 
add the crayonbox css to /public/stylesheets folder
add color_picker_form_builder.rb to the /lib folder

add to the view or layout file:

corntrace

def tip(msg); puts; puts msg; puts "-"*100; end

#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#

tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"

tip "Ruby 1.9 supports named captures in regular expressions!"

corntrace

def tip(msg); puts; puts msg; puts "-"*100; end

#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#

tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"

tip "Ruby 1.9 supports named captures in regular expressions!"

corntrace

var mozmill = {}; Components.utils.import('resource://mozmill/modules/mozmill.js', mozmill);
var elementslib = {}; Components.utils.import('resource://mozmill/modules/elementslib.js', elementslib);


var testFoo = function(){
  var controller = mozmill.getMail3PaneController();
  var e = 
new elementslib.XPath(controller.window.frames[0].document, "/*[name()='page' and namespace-uri()='http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul']/*[name()='grid' and namespace-uri()='http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul'][1]/*[name()='rows' and namespace-uri()='http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul'][1]/*[name()='row' and namespace-uri()='http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul'][16]/*[name()='hbox' and namespace-uri()='http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul'][1]/*[name()='label' and namespace-uri()='http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul'][1]");

  controller.click(e);

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+__rvm_parse_args:414> [[ -z 4.3.9 ]]
+__rvm_parse_args:570> [[ -z '' && -n '' ]]
+__rvm_parse_args:572> [[ 0 -eq 1 || -n '' ]]
+__rvm_parse_args:15> [[ -n --default ]]
+__rvm_parse_args:17> rvm_token=--default 
+__rvm_parse_args:19> [[ 1 -gt 0 ]]
+__rvm_parse_args:19> next_token=system 
+__rvm_parse_args:19> shift
+__rvm_parse_args:21> case --default (fetch|version|srcdir|reset|debug|reload|update|monitor|notes|implode|seppuku|question|answer|env)
+__rvm_parse_args:21> case --default (package)

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# Cleaning up and extending the Gemfile
remove_file 'Gemfile'
create_file 'Gemfile', <<-GEMFILE
source 'http://rubygems.org'

gem 'rails', '3.0.0'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem 'sqlite3-ruby', :require => 'sqlite3'

corntrace

module Embedding
  def embeds_many(association_id, options = {})
    has_many association_id, options.merge(:dependent => :destroy)
    accepts_nested_attributes_for association_id, :allow_destroy => true
  end
  
  def embeds_one(association_id, options = {})
    has_one association_id, options.merge(:dependent => :destroy)
    accepts_nested_attributes_for association_id, :allow_destroy => true
  end