subscriber.rb

class Subscriber < ActiveRecord::Base
  include ActiveModel::Model

  attr_accessor :email

  def subscribed?
    SendpulseClient::Email.get(email).is_a? Array
  end

  def subscribe!(book_id = nil)
    book_id = SendpulseClient::Addressbook.all.first['id'] unless book_id
    SendpulseClient::Addressbook.add_clients(book_id, [email])
  end

  def unsubscribe!(book_id = nil)
    subscriptions = SendpulseClient::Email.get(email)
    return unless subscriptions.is_a? Array

    book_id = subscriptions[0]['book_id'] unless book_id
    SendpulseClient::Addressbook.remove_clients(book_id, [email])
  end
end