|  |  | @ -172,17 +172,17 @@ class FilesController < ApplicationController | 
			
		
	
		
		
			
				
					
					|  |  |  |       attachment_ids.each do |attachment_id| |  |  |  |       attachment_ids.each do |attachment_id| | 
			
		
	
		
		
			
				
					
					|  |  |  |         ori = Attachment.find_by_id(attachment_id) |  |  |  |         ori = Attachment.find_by_id(attachment_id) | 
			
		
	
		
		
			
				
					
					|  |  |  |         # 同一个资源可以多次发送到课堂 |  |  |  |         # 同一个资源可以多次发送到课堂 | 
			
		
	
		
		
			
				
					
					|  |  |  |         @course.attachments.each do |att| |  |  |  |         # @course.attachments.each do |att| | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |           @exist = false |  |  |  |         #   @exist = false | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |           if att.id == ori.id || (!att.copy_from.nil? && !ori.copy_from.nil? && att.copy_from == ori.copy_from) || att.copy_from == ori.id || att.id == ori.copy_from |  |  |  |         #   if att.id == ori.id || (!att.copy_from.nil? && !ori.copy_from.nil? && att.copy_from == ori.copy_from) || att.copy_from == ori.id || att.id == ori.copy_from | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |             att.created_on = Time.now |  |  |  |         #     att.created_on = Time.now | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |             att.save |  |  |  |         #     att.save | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |             @exist = true |  |  |  |         #     @exist = true | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |             break |  |  |  |         #     break | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |           end |  |  |  |         #   end | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |         end |  |  |  |         # end | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  | 
 |  |  |  |         # | 
			
				
				
			
		
	
		
		
			
				
					
					|  |  |  |         next if @exist |  |  |  |         # next if @exist | 
			
				
				
			
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
	
		
		
			
				
					
					|  |  |  |         attach_copied_obj = ori.copy |  |  |  |         attach_copied_obj = ori.copy | 
			
		
	
		
		
			
				
					
					|  |  |  |         attach_copied_obj.container = @course |  |  |  |         attach_copied_obj.container = @course | 
			
		
	
		
		
			
				
					
					|  |  |  |         attach_copied_obj.created_on = Time.now |  |  |  |         attach_copied_obj.created_on = Time.now | 
			
		
	
	
		
		
			
				
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