add explict support for converting active_record objects.

lib/hashish.rb

@@ -53,6 +53,7 @@ def libdir(*args, &block)
     load 'slug.rb'
     load 'parameter_parser.rb'
     load 'api.rb'
+    load 'rails.rb' if defined?(Rails)
   end
 
   unless defined?(H)

lib/hashish/rails.rb

@@ -0,0 +1,59 @@
+if defined?(Rails)
+
+  ActiveRecord
+  ActiveRecord::Base
+
+  module ActiveRecord
+    class Base
+      class << self 
+        def to_hashish(*args)
+
+          @to_hashish ||= (
+            column_names + reflect_on_all_associations.map(&:name)
+          ).map{|name| name.to_s}
+
+          unless args.empty?
+            @to_hashish.clear
+            args.flatten.compact.each do |arg|
+              @to_hashish.push(arg.to_s)
+            end
+            @to_hashish.uniq!
+            @to_hashish.map!{|name| name.to_s}
+          end
+
+          @to_hashish
+        end
+
+        alias_method 'to_h', 'to_hashish'
+      end
+
+      def to_hashish(*args)
+        hash = Hashish.data
+        model = self.class
+
+        attrs = args.empty? ? model.to_hashish : args
+
+        attrs.each do |attr|
+          value = self.send(attr)
+
+          if value.respond_to?(:to_hashish)
+            hash[attr] = value.to_hashish
+            next
+          end
+
+          if value.is_a?(Array)
+            hash[attr] = value.map{|val| val.respond_to?(:to_hashish) ? val.to_hashish : val}
+            next
+          end
+
+          hash[attr] = value
+        end
+
+        hash
+      end
+
+      alias_method 'to_h', 'to_hashish'
+    end
+  end
+
+end