class AddPicToInboxMigration < ActiveRecord::Migration[5.0]
  def change
    FacebookPage.find_each do |inbox|
      begin
        url = "http://graph.facebook.com/"<< inbox.page_id << "/picture?type=large"
        uri = URI.parse(url)
        tries = 3
          begin
            response = uri.open(redirect: false)
          rescue OpenURI::HTTPRedirect => redirect
            uri = redirect.uri # assigned from the "Location" response header
            retry if (tries -= 1) > 0
            raise
          end
        pic_url = response.base_uri.to_s
        puts pic_url.inspect
      rescue => e
        pic_url = nil
      end
        inbox.remote_avatar_url = pic_url
        inbox.save!
    end
  end
end