Rewrite alias_method_chain to use super. Ahhhhh :)

app/models/content_configuration.rb

@@ -3,7 +3,7 @@ require 'open_food_network/paperclippable'
 class ContentConfiguration < Spree::Preferences::FileConfiguration
   # Header
   include OpenFoodNetwork::Paperclippable
-  file_preference :logo
+  preference :logo, :file
   has_attached_file :logo
 
   # Home page

app/models/spree/preferences/file_configuration.rb

@@ -1,36 +1,36 @@
 module Spree::Preferences
   class FileConfiguration < Configuration
 
-    # Ideally, we'd alias_method_chain preference to add new type. However, failcake.
-    def self.file_preference(name)
-      preference "#{name}_file_name",    :string
-      preference "#{name}_content_type", :string
-      preference "#{name}_file_size",    :integer
-      preference "#{name}_updated_at",   :string
-    end
+    def self.preference(name, type, *args)
+      if type == :file
+        super "#{name}_file_name",    :string,  *args
+        super "#{name}_content_type", :string,  *args
+        super "#{name}_file_size",    :integer, *args
+        super "#{name}_updated_at",   :string,  *args
 
-
-    # TODO: Rewrite with super
-
-    def get_preference_with_files(key)
-      if !has_preference?(key) && has_attachment?(key)
-        send(key)
       else
-        get_preference_without_files(key)
+        super name, type, *args
+      end
+    end
+
+
+    def get_preference(key)
+      if !has_preference?(key) && has_attachment?(key)
+        send key
+      else
+        super key
       end
     end
-    alias_method_chain :get_preference, :files
     alias :[] :get_preference
 
 
-    def preference_type_with_files(name)
+    def preference_type(name)
       if has_attachment? name
         :file
       else
-        preference_type_without_files(name)
+        super name
       end
     end
-    alias_method_chain :preference_type, :files
 
 
     # Spree's Configuration responds to preference methods via method_missing, but doesn't

spec/models/spree/preferences/file_configuration_spec.rb

@@ -6,7 +6,7 @@ module Spree
       preference :name, :string
 
       include OpenFoodNetwork::Paperclippable
-      file_preference :logo
+      preference :logo, :file
       has_attached_file :logo
     end