Calling a Model Class within a Library Module?

I'm trying to call a Model class within a lib/ module with no success. Here's what I'm working with: ======================= lib/foo_module.rb ====================== require "pp" module Foo_Module

def Foo_Module.import_database      barmodel = BarModel.find_all()

end

module ForeignTables #Unimportant stuff in here end

end ======================end lib/foo_module.rb ====================

When I try to run "Foo_Module.import_database" in the console, I get this error: NameError: uninitialized constant BarModel

BarModel was constructed with the model generator. Any ideas? I feel like I'm just not referencing BarModel correctly. Should it Models::BarModel or something?