MailChimpのsubscribe/unsubscribe

tatemae-consultancy/hominidというgemを使ってサービスの設定状況とMailChimpのsubscribe/unsubscribeを連携する．

user.rb

class User < ActiveRecord::Base
  after_create do
    subscribe_mailchimp
  end

  after_update do
    if email.present? && email_was.present? && email != email_was
      begin
        mailchimp.list_update_member(mailchimp_list_id, email_was,
          { EMAIL: email}, 'html', false)
      rescue => e
        logger.error "Failed to update newsletter: #{url_name} #{e}"
      end
    end
    true
  end

  before_destroy do |user|
    unsubscribe_mailchimp
  end

  def subscribe_mailchimp
    return if email.blank?
    mailchimp.list_subscribe(mailchimp_list_id, email, {}, 'html',
      false, true, false, false)
  rescue => e
    logger.error "Failed to subscribe newsletter: #{url_name} #{e}"
  end

  def unsubscribe_mailchimp
    return if email.blank?
    mailchimp.list_unsubscribe(mailchimp_list_id, email, false, false, false)
  rescue => e
    logger.error "Failed to unsubscribe newsletter: #{url_name} #{e}"
  end

  def mailchimp
    Hominid::API.new(APP_CONFIG['mailchimp']['api_key']) # Do not cache.
  end

  def mailchimp_list_id
    APP_CONFIG['mailchimp']['list_id']
  end
end