数据库误删除的问题

app/controllers/stores_controller.rb

@@ -8,19 +8,24 @@ class StoresController < ApplicationController
     name = params[:name] ||= ''
     redirect_to stores_path, :notice => l(:field_course_un) if name.blank?
     # 按文件名搜索
-    result = Attachment.where("attachments.container_type IS NOT NULL AND filename LIKE :like ", like: "%#{name}%").
+    resultSet = Attachment.where("attachments.container_type IS NOT NULL AND filename LIKE :like ", like: "%#{name}%").
               reorder("created_on DESC")
-    # result = result.to_a
-    result.map { |res|
-      if(res.container.nil? || 
-        (res.container.class.to_s=="Project" && res.container.is_public == false) ||
-        (res.container.has_attribute?(:project) && res.container.project.is_public == false) ||
-        (res.container.class.to_s=="HomeworkAttach" && res.container.bid.reward_type == 3) ||
-        false
-        )
-        result.delete(res)
-      end
-    }
+    
+    result = resultSet.to_a.dup
+
+    # result.map { |res|
+    #   if(res.container.nil? || 
+    #     (res.container.class.to_s=="Project" && res.container.is_public == false) ||
+    #     (res.container.has_attribute?(:project) && res.container.project.is_public == false) ||
+    #     (res.container.class.to_s=="HomeworkAttach" && res.container.bid.reward_type == 3) ||
+    #     false
+    #     )
+    #     logger.debug("=====================================#{result.include? res}")
+    #     logger.debug("=====================================#{res}")
+    #     result.delete(res)
+    #     logger.debug("=====================================#{result.include? res}")
+    #   end
+    # }
     @searched_attach = paginateHelper result
   end