a class for connecting to mailchimp, with gibbon gem

NewsletterService.rb

# encoding: UTF-8

# this is a class for connecting to mailchimp, with gibbon gem
class NewsletterService

  def connect
    @u = Gibbon.new(MC_API_KEY)
    @u.throws_exceptions = true
    @u
  end
  
  def subscribe_user(user)
    #return true if subscription goes ok, false if not
    @new_user.connect
    @result = @new_user.list_subscribe(
      :id => mailchimp_user_id_list, 
      :email_address => user.email, 
      :merge_vars => {
        'FNAME' => user.name, 
        'LNAME' => user.surname
         },
        :email_type => "html",
        :double_optin => false, 
        :send_welcome => false)
    @result ? true : false
  end
  
  def unsubscribe_user(user)
    #return true if unsubscription goes ok, false if not
    @old_user.connect
    @result = @old_user.list_unsubscribe(:id => mailchimp_user_id_list, :email_address => user.email, :delete_member => true, :send_goodbye => false, :send_notify => false)
    @result ? true : false
  end
  
 
end