修复获取当前用户建立项目不正确的问题

app/helpers/homework_attach_helper.rb

@@ -56,13 +56,17 @@ module HomeworkAttachHelper
   end
 
   def user_projects_option
-    projects = Project.where("id < 8")
+    cond = Project.visible_condition(User.current) + " AND projects.project_type <> 1"
+    memberships = User.current.memberships.all(:conditions => cond)
+    projects = memberships.map(&:project)
     type = []
     projects.each do |project|
-      option = []
-      option <<  project.name
-      option <<  project.id
-      type << option
+      if project != nil
+        option = []
+        option <<  project.name
+        option <<  project.id
+        type << option
+      end
     end
     type
   end