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INSERT INTO "companionships" ("green_id", "companion_type", "companion_id", "created_at", "updated_at") 
  VALUES ($1, $2, $3, $4, $5) 
  RETURNING "id" [
    ["green_id", 1], 
    -- this line should be GoodCompanion
    ["companion_type", "Green"], 
    ["companion_id", 14], 
    ["created_at", "2020-05-01 13:05:59.823802"], 
    ["updated_at", "2020-05-01 13:05:59.823802"]
  ];

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class CreateCompanionships < ActiveRecord::Migration[6.0]
  def change
    create_table :companionships do |t|
      t.references :green, null: false, foreign_key: {to_table: :greens}
      t.string :companion_type
      t.references :companion, null: false, foreign_key: {to_table: :greens}

      t.timestamps
    end
  end

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class BadCompanion < Green
  has_many :companionships, as: :companion
  has_many :greens, through: :companionships
end

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### Foreman alias
alias befstart="bundle exec foreman start"
alias befrun="bundle exec foreman run"

### docker machine
function dmdefault() {
    if [[ "$@" = "" ]]
    then
        echo "default"
    else

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-- Arel
select("COUNT(*)").select("LOWER(name) AS name").group("LOWER(name)").having("COUNT(*) > 1")

-- SQL
SELECT COUNT(*), LOWER(name) AS name FROM "occupations" GROUP BY LOWER(name) HAVING COUNT(*) > 1

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echo $(docker-machine ip docker-vm) dockerhost | sudo tee -a /etc/hosts

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module Utils
  class StringDecorator

    def initialize(string)
      @string = string
    end

    def =~(regex)
      self.to_s =~ regex
    end

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# Custom bash prompt via kirsle.net/wizards/ps1.html
source /usr/share/git-core/contrib/completion/git-prompt.sh
export PS1="[\[$(tput setaf 5)\]\u\[$(tput setaf 2)\]@\h\[$(tput setaf 6)\]\[$(tput bold)\] \W\[$(tput sgr0)\]\$(__git_ps1)]\\$ \[$(tput sgr0)\]"

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jstatd -J-Djava.security.policy=/usr/java/default/bin/jstatd.all.policy

# jstatd.all.policy has to be created with the following code:
#
# grant codebase "file:/usr/java/jdk1.7.0_09/lib/tools.jar" {
#    permission java.security.AllPermission;
# };

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require 'active_record'
require 'sqlite3'
require 'logger'

ActiveRecord::Base.logger = Logger.new('debug.log')
ActiveRecord::Base.configurations = YAML::load(IO.read('database.yml'))
ActiveRecord::Base.establish_connection('development')

class Schema < ActiveRecord::Migration
  def change