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http://snippets.dzone.com/posts/show/5364

Strftime to get the ISO 8601 (see RFC 3339) full date format for an hEvent Microformat. Doubtless usable in other situations.

strftime('%Y-%m-%dT%H:%M:%S%z');


If you're in Ruby, you can access this the quick way with:
$ irb
>> require 'time'

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class Ability
  include CanCan::Ability
  
  def initialize(user)
    user ||= User.new # guest user
    
    if user.role? :admin
      can :manage, :all
    else
      can :read, :all

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Autotest.add_hook :initialize do |at|
  at.add_exception %r%^\./tmp%                         
  at.add_exception "rerun.txt"
end

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>> SignedRequest.sign({:dude => 12345}, "awesome")
=> "1G3Ir3a1zIf90c/XbajOYPzQXWQ="
>> SignedRequest.validate({:dude => 12345}, "awesome")
=> false
>> SignedRequest.validate({:dude => 12345, :signature => "1G3Ir3a1zIf90c/XbajOYPzQXWQ="}, "awesome")
=> false
>> SignedRequest.validate({:dude => 12345, "signature" => "1G3Ir3a1zIf90c/XbajOYPzQXWQ="}, "awesome")
=> true

hash = params

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# http://github.com/rails/rails/blob/136962322b8da0d6c09b4962194216cc4d248130/actionpack/lib/action_view/vendor/builder/xmlbase.rb
# http://github.com/rails/rails/blob/8272630ce8af0546e7d1aa9211a9d91b80700cbd/activerecord/lib/active_record/serializers/xml_serializer.rb
# http://github.com/rails/rails/blob/8272630ce8af0546e7d1aa9211a9d91b80700cbd/activerecord/lib/active_record/serialization.rb



module Builder
  class XmlBase < BlankSlate
    def method_missing(sym, *args, &block)
      "fekja!"

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>> nil.singularize
NoMethodError: undefined method `singularize' for nil:NilClass
	from /Users/awesome/.rvm/gems/ruby-1.8.6-p399/gems/activesupport-2.3.5/lib/active_support/whiny_nil.rb:52:in `method_missing'
	from (irb):7
>> class NilClass
>>   def singularize
>>     return nil
>>     end
>>   end
=> nil

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  1 <% content_for :head do -%>
  2     <!-- required stylesheet for TextboxList -->
  3     <link rel="stylesheet" href="/widgets/textboxlist/TextboxList.css" type="text/css" media="screen" charset="utf-8" />
  4 
  5     <!-- required stylesheet for TextboxList.Autocomplete -->
  6     <link rel="stylesheet" href="/widgets/textboxlist/TextboxList.Autocomplete.css" type="text/css" media="screen" charset="utf-8" />
  7 
  8     <script src="/widgets/textboxlist/mootools-1.2.1-core-yc.js" type="text/javascript" charset="utf-8"></script>
  9 
 10     <!-- required for TextboxList -->

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# patch, microformat datetime iso8601
# http://github.com/rails/rails/blob/master/activesupport/lib/active_support/time_with_zone.rb
# http://microformats.org/wiki/date-design-pattern
module ActiveSupport
  class TimeWithZone
    # The full datetime-design-pattern has the format
    # YYYY-MM-DDTHH:MM:SS+ZZ:ZZ
    def mf
      offset = time.strftime("%z").sub(/(\d{2}$)/, ':\1')
      time.strftime("%Y-%m-%dT%H:%M:%S#{offset}")

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# patch, nokogiri skip_instruct & indent
 # http://github.com/tenderlove/nokogiri/blob/master/lib/nokogiri/xml/builder.rb
 require 'nokogiri'
 module Nokogiri
   module XML
     class Builder
       def to_xml(*args)
         dok = @doc.to_xml(*args)
         if args.last.is_a?(Hash)
           args.last.each do |k,v| 

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# http://ircarchive.info/rubyonrails/2007/4/13/30.html

>> "DudeAwesome".underscore
=> "dude_awesome"