shime

class ApplicationController < ActionController::Base
  protect_from_forgery
  rescue_from Exception, with: lambda { |exception| render_error 500, exception } 
  rescue_from ActionController::RoutingError, ActionController::UnknownController, ::AbstractController::ActionNotFound, ActiveRecord::RecordNotFound, with: lambda { |exception| render_error 404, exception } 

  def render_error(status, exception) 
      render template: "errors/error_#{status}", layout: 'layouts/application', status: status 
  end
end

shime

$ history | awk {'print $2, $3, $4'} | sort | uniq -c | sort -k1 -rn | head -n 30
 610 git status 
 568 git commit -m
 491 git add .
 252 git push origin
 176 bundle  
 138 rails s 
 128 ls  
 120 git commit --amend
 114 git reset --hard

shime

module CanCook
  def bake(food_name)
    "I'm baking the #{food_name}!"
  end
end

class Programmer
  def initialize
    self.extend CanCook
  end

shime

module Prepending
  def append_features(base)
    prepend = self
    base.define_singleton_method(:new) do |*args, &block|
      super(*args, &block).extend(prepend)
    end
  end
end

module CanCook

shime

module Prepending
  def append_features(base)
    prepend = self
    base.extend Module.new { define_method(:new) { |*args,&block| super(*args,&block).extend(prepend) }}
  end
end

module CanCook

  extend Prepending

shime

require "prepend"
module CanCook
  def bake(food_name)
     "I'm baking the #{food_name}!"
  end
end

class Programmer
  def bake(food_name)
    "I don't know how to bake #{food_name} :("

shime

module CanCook
  def override_bake(food_name)
    "I'm baking the #{food_name}!"
  end
end

class Programmer
  def bake(food_name)
     "I don't know how to bake #{food_name} :("

shime

class Programmer
  def bake(food_name)
    "I don't know how to bake #{food_name} :("
  end
end

class Programmer
  alias_method :_real_bake, :bake
  def bake(food_name)
    "I'm baking the #{food_name}!"

shime

module CanCook
  def self.included(base)
    base.class_eval do
      remove_method :bake
    end
  end
  def bake(food_name)
    "I'm baking the #{food_name}!"
  end
end

shime

module CanCook
  def bake(food_name)
    "I'm baking the #{food_name}!"
  end
end

class Programmer
  def bake(food_name)
    "I don't know how to bake #{food_name} :("
  end