Sync Shopify Customers who Accept Marketing with Sendy Using ActiveRecord 4

shopify_api.conf

SHOPIFY_API_KEY = 'my-key'
SHOPIFY_PASSWORD = 'my-pass'
STORE_NAME = 'my-store'

sync_shopify.rb

# Sync Shopify Customers that Accept Marketing with Sendy

require 'rubygems'
require 'active_record'
require 'protected_attributes'
require 'shopify_api'
require 'yaml'


dbconfig = YAML::load(File.open('sync_shopify.yml'))
ActiveRecord::Base.establish_connection(dbconfig)


eval File.open('shopify_api.conf').read
shop_url = "https://#{SHOPIFY_API_KEY}:#{SHOPIFY_PASSWORD}@#{STORE_NAME}.myshopify.com/admin"
ShopifyAPI::Base.site = shop_url



class Subscriber < ActiveRecord::Base
  attr_accessible :name, :email, :join_date, :timestamp, :list, :last_campaign, :userID, :custom_fields
  validates_uniqueness_of :email
end


SENDY_LIST_ID = 11   # Change This!

ShopifyAPI::Customer.all( from: :search, params: {q: "accepts_marketing:true", limit:250}).each do |customer|

  name = "#{customer.first_name} #{customer.last_name}"
  subscriber = Subscriber.new :name => name, :email => customer.email, :join_date => customer.created_at, :timestamp => customer.created_at
  email_with_name = "#{name} <#{customer.email}>"

  subscriber = Subscriber.new :name => name, 
    :email => customer.email, 
    :userID => 1,
    :custom_fields => "",
    :list => SENDY_LIST_ID, 
    :join_date => DateTime.parse(customer.created_at), 
    :timestamp => DateTime.parse(customer.created_at)

    subscriber.save

end

sync_shopify.yml

adapter: mysql
host: localhost
username: user
password: pass
database: database_name

Where do these files go?