set max_attempts to 1 for submit_to_scribd

Change-Id: I02bd7189bf0d6a2c670cf1b6f4f301cf71a97a45
Reviewed-on: https://gerrit.instructure.com/6130
Tested-by: Hudson <hudson@instructure.com>
Reviewed-by: Zach Wily <zach@instructure.com>

Author: codekitchen

app/models/attachment.rb

@@ -97,7 +97,7 @@ def touch_context_if_appropriate
   # it to scribd from that point does not make the user wait since that 
   # does happen asynchronously and the data goes directly from s3 to scribd.
   def after_attachment_saved
-    send_later_enqueue_args(:submit_to_scribd!, { :strand => 'scribd' }) unless Attachment.skip_scribd_submits? || !ScribdAPI.enabled?
+    send_later_enqueue_args(:submit_to_scribd!, { :strand => 'scribd', :max_attempts => 1 }) unless Attachment.skip_scribd_submits? || !ScribdAPI.enabled?
     if respond_to?(:process_attachment_with_processing) && thumbnailable? && !attachment_options[:thumbnails].blank? && parent_id.nil?
       temp_file = temp_path || create_temp_file
       self.class.attachment_options[:thumbnails].each { |suffix, size| send_later_if_production(:create_thumbnail_size, suffix) }

lib/unzip_attachment.rb

@@ -162,7 +162,7 @@ def process
     Attachment.skip_scribd_submits(false)
     FileInContext.queue_files_to_delete(false)
     FileInContext.destroy_queued_files
-    Attachment.send_later(:submit_to_scribd, @attachments.map(&:id))
+    Attachment.send_later_enqueue_args(:submit_to_scribd, { :strand => 'scribd', :max_attempts => 1 }, @attachments.map(&:id)) unless @attachments.blank?
     Course.update_all({:updated_at => Time.now.utc}, {:id => @course.id})
     update_progress(1.0)
   end