附件重复的问题

app/controllers/initialization_data_controller.rb

@@ -406,11 +406,12 @@ class InitializationDataController < ApplicationController
     attachment_attrs = %i[id container_id container_type filename disk_filename filesize content_type digest downloads author_id
     created_on description disk_directory attachtype is_public copy_from quotes is_publish publish_time resource_bank_id unified_setting
     cloud_url course_second_category_id]
+    att_ids = Attachment.pluck(:id)
     Attachment.bulk_insert(*attachment_attrs) do |worker|
-      @attachments.each do |att|
+      @attachments.select{|a| !att_ids.include?(a.id) }.each do |att|
+        logger.info("###attachment_id: #{att.id}")
         base_attr = att.attributes.dup.except("author_id", "disk_directory", "copy_from")
         # 本地版将过关任务的图片迁移到files/localshixuns 目录下， copy_from记录的是他原来的目录结构
-        logger.info("########att.disk_directory: #{att.disk_directory}")
         worker.add(base_attr.merge(author_id: 1, disk_directory: "localshixuns", copy_from: "#{att.disk_directory}"))
       end
     end