tax_method.rb in piggybak-0.2.0

- old
+ new

@@ -1,7 +1,14 @@
 module Piggybak
   class TaxMethod < ActiveRecord::Base
+    
+    # klass_enum requires the ShippingCalculator subclasses to be loaded
+    shipping_calcs_path = File.expand_path("../tax_calculator", __FILE__)
+    Dir.glob(shipping_calcs_path + "**/*.rb").each do |subclass|
+      ActiveSupport::Dependencies.require_or_load subclass
+    end 
+    
     has_many :tax_method_values, :dependent => :destroy
     alias :metadata :tax_method_values
 
     validates_presence_of :description
     validates_presence_of :klass
@@ -17,11 +24,10 @@
         end
       end
     end
 
     def klass_enum 
-      #TODO: Troubleshoot use of subclasses here instead
-      [Piggybak::TaxCalculator::FlatRate]
+      Piggybak::TaxCalculator.subclasses
     end
 
     def self.calculate_tax(object)
       total_tax = 0
 