文件下载权限判断优化

app/controllers/attachments_controller.rb

@@ -54,13 +54,13 @@ class AttachmentsController < ApplicationController
     # modify by nwb
     # 下载添加权限设置
     candown = false
-    if @attachment.container.has_attribute?(:project) && @attachment.container.project
+    if (@attachment.container.has_attribute?(:project) || @attachment.container.has_attribute?(:project_id)) && @attachment.container.project
       project = @attachment.container.project
       candown= User.current.member_of?(project) || (project.is_public && @attachment.is_public == 1)
     elsif  @attachment.container.is_a?(Project)
       project = @attachment.container
       candown= User.current.member_of?(project) || (project.is_public && @attachment.is_public == 1)
-    elsif @attachment.container.has_attribute?(:course) && @attachment.container.course
+    elsif (@attachment.container.has_attribute?(:course) ||@attachment.container.has_attribute?(:course_id) ) && @attachment.container.course
       course = @attachment.container.course
       candown= User.current.member_of_course?(course) || (course.is_public==1 && @attachment.is_public == 1)
     elsif @attachment.container.is_a?(Course)