elcortez

require 'csv'

def generate_users
  query = "SELECT first_name, last_name FROM users"
  sanitized_query = ActiveRecord::Base.sanitize_sql_array([query])
  result = ActiveRecord::Base.connection.execute(sanitized_query).values

  csv_string = CSV.generate do |csv| 
    csv << ["first_name", "last_name"]
    result.map { |row| csv << row } 

elcortez

require_relative "animal"
class Warthog < Animal
  def talk
    "#{name} grunts !"
  end
end

elcortez

require_relative "animal"
class Meerkat < Animal
  def talk
    "#{name} barks !"
  end
end

elcortez

require_relative "animal"

class Lion < Animal

  def talk
    "#{name} roars !"
  end

  def eat(food)
    super(food) + ". Law of the jungle!"

elcortez

require_relative "lion"
require_relative "meerkat"
require_relative "warthog"


my_lion = Lion.new("simba")
timon = Meerkat.new("timon")
pumba = Warthog.new("pumba")

[my_lion, timon, pumba].each do |animal|

elcortez

class Animal
  attr_reader :name

  def initialize(name)
    @name = name
  end

  def self.phyla
   %w[
        Ecdysozoa

elcortez

require_relative 'building'
require_relative 'butler'

class House < Building
  attr_accessor :butler

  def initialize(name, width, length, butler_name)
    super(name, width, length)
    @butler = Butler.new(butler_name, self)
  end

elcortez

require_relative 'building'
require_relative 'butler'

class Castle < Building
  attr_accessor :butler

  def initialize(name, width, length, butler_name)
    super(name, width, length)
    @butler = Butler.new(butler_name, self)
  end

elcortez

class Butler
  attr_reader :name, :associated_house

  def initialize(name, associated_house)
    @name = name
    @associated_house = associated_house
  end

  def clean_associated_house
    puts "#{associated_house.name} cleaned by #{name} !"

elcortez

class Building
  attr_reader :width, :length
  attr_accessor :name

  def initialize(name, width, length)
    @name = name
    @width = width
    @length = length
  end