Update readme, todo and changelog

CHANGELOG.md

@@ -1,3 +1,7 @@
+## master
+
+* Add support for localizing methods.
+
 ## v0.0.1 - 2012-5-8
 
 * Basic localization for numeric, date and time attributes

README.md

@@ -85,6 +85,30 @@ I18n.with_locale :pt do
 end
 ```
 
+### Localizing methods
+
+Given a product model with a `total` method, that is a simple calculation of `quantity * price`, you can tell **I18n::Alchemy** to localize that method for you together with the attributes:
+
+```ruby
+class Product < ActiveRecord::Base
+  include I18n::Alchemy
+  localize :total => :number
+
+  def total
+    quantity * price
+  end
+end
+
+@product          = Product.first
+@product.price    = 1.99
+@product.quantity = 10
+
+@product.total   # => 19.90
+@localized.total # => "19,90"
+```
+
+If the method has a writer method, in this case `total=`, that'd get a parsed version for input values as well.
+
 ## I18n configuration
 
 Right now the lib uses the same configuration for numeric, date and time values from Rails:

TODO.rdoc

@@ -1,19 +1,5 @@
 == I18n Alchemy TODO
 
-* Allow localization of methods (not db columns)
-  Possible APIs:
-    # All attributes localized by default
-    localize_methods :total => :number
-
-    # OR
-
-    localize :attributes => { :price => :numeric, :created_at => :datetime },
-      :methods => { :total => :number }
-    localize :attributes => [:price, :created_at], :methods => { :total => :number }
-    localize :attributes => :all, :methods => { :total => :number }
-    localize :methods => { :total => :number } # :attributes => :all by default?
-    localize :total => :number # :methods => {} by default?
-
 * Add currency parser/localization on top of numeric?
 * Localization for non AR classes (do not depend on AR::Base.columns)
 * Improve type check for date/time parsers