define class methods to access denormalized fields at the _fields hash

alize_extension.rb

module AlizeExtension
  def self.included(base)
    base.extend(ClassMethods)
  end

  module ClassMethods
    def alize_with_methods(relation, *fields)
      alize relation, *fields
      fields.each do |field|
        define_method "#{relation}_#{field}" do
          send("#{relation}_fields").try(:[], "#{field}")
        end
      end
    end
  end
end