bartoszkopinski

module Memoizable
  module ModuleMethods
    def memoize
      puts 'memoize'
    end
  end

  def self.included(descendant)
    descendant.extend(ModuleMethods)
  end

bartoszkopinski

class Symbol
  def & s
    :"#{self} #{s}"
  end

  def to_proc
    proc do |v|
      to_s.split.inject(v){ |val, m| val.send(m) }
    end
  end

bartoszkopinski

n   = 1_000
id  = User.first.id

profile = User.only(:profile).find(id).profile

Benchmark.bm(50) do |x|
  x.report('User.find(id).profile') do
   n.times{ User.find(id).profile }
 end