Superclass mismatch for ActiveRecord::Base subclass

I am trying to figure out a superclass mismatch TypeError exception in one of my rails projects. Maybe someone can help here. This occurs when I am attempting to load a file. On the first load, everything is fine, but on subsequent loads, it gives me this exception. Here is the pertinent code.

in check.rb class Check < ActiveRecord::Base end

in drc.rb class DRC < Check   def after_initialize = "DRC"     self.description = "Design Rule Check" = false   end end

Then in a controller I load this file in on a specific action.

      load file       c =

The first time I load there are no issues. It creates a new Check object for me and saves it into the db. Now when I delete the check from the db and try to run through this code again I get:

superclass mismatch for class DRC

I'm not changing the superclass for DRC. I'm not reading in a different file. I'm not sure what is going on here. Any thoughts?