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# This custom matcher can be used to test state machine
#
# Examples
#
#   it { should have_event(:status, :event_name, [:state1, :state2] => [:state3, :state4]) }
#   it { should have_event(:status, :event_name, {
#                                                   :state1 => :state3,
#                                                   :state1 => :state4,
#                                                   :state3 => :state3,
#                                                   :state2 => :state4

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# This is a skeleton for testing models including examples of validations, callbacks,
# scopes, instance & class methods, associations, and more.
# Pick and choose what you want, as all models don't NEED to be tested at this depth.
#
# I'm always eager to hear new tips & suggestions as I'm still new to testing,
# so if you have any, please share!
#
# @kyletcarlson
#
# This skeleton also assumes you're using the following gems: 

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# http://gistpages.com/2013/07/15/reset_mysql_root_password_on_mac_os

$ which mysqladmin
/usr/local/bin/mysqladmin

$ mysqladmin -u root -p password
Enter password:
New password:
Confirm new password:

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class Parent
  def say
    puts "In Parent"
  end
end

module A
  def say
    puts "In A"
    super

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tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

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# a common polymorphic model
class Comment < ActiveRecord::Base
  belongs_to :commentable, polymorphic: true
end

class Article < ActiveRecord::Base
  has_many :comments, as: :commentable, dependent: :destroy
end

class Collection < ActiveRecord::Base

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class ActionDispatch::Routing::Mapper
  def draw(routes_name)
    instance_eval(File.read(Rails.root.join("config/routes/#{routes_name}.rb")))
  end
end

BCX::Application.routes.draw do
  draw :api
  draw :account
  draw :session

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# source: http://hashrocket.com/blog/posts/bridging-activerecord-and-mongoid
module Extensions::ActiveRecord::HasManyDocuments
  extend ActiveSupport::Concern

  module ClassMethods
    def has_many_documents(association_name, options = {})
      class_eval %<
        def #{association_name}
          #{association_name.to_s.singularize.classify}.where(#{name.underscore}_id: id)
        end

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$sure = false

t = Thread.new { 
  begin
    # nada
  ensure
    sleep
    $sure = true
    # cleanup all the things
  end

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# => 2007-11-19T08:37:48-06:00 Safari下只能Parse这种格式的时间
Time.now.strftime("%FT%T%:z")