hstore_setters.rb

class FeedItem < ActiveRecord::Base

  # hstore is data

  def self.field(name)
    self.class_eval <<-RUBY, __FILE__, __LINE__ + 1
      def #{name}=(val)
        self.data[:#{name}] = val
      end

      def #{name}
        self.data[:#{name}]
      end
    RUBY
  end
end