undefined class/module Function

my develop environment:

 

windows xp

F:\>ruby -v
ruby 1.9.2p180 (2011-02-18) [i386-mingw32]

F:\>rails -v
Rails 3.0.5

 

在session中存了一个对象，并将session存到数据库中时，报错：undefined class/module Function

 

解决方法：在application_controller中加入

before_filter  :preload_models
 
def preload_models()
  Model1
  Model2
  ...
  ...
  ...
  Model9
end

 

参考：http://www.philsergi.com/2007/06/rails-memcached-undefinded-classmodule.html

http://shiningray.cn/rails-memcached-undefined-classmodule.html