class ActionView::Helpers::Tags::Label::LabelBuilder

def initialize(template_object, object_name, method_name, object, tag_value)
  @template_object = template_object
  @object_name = object_name
  @method_name = method_name
  @object = object
  @tag_value = tag_value
end

def translation
  method_and_value = @tag_value.present? ? "#{@method_name}.#{@tag_value}" : @method_name
  @object_name.gsub!(/\[(.*)_attributes\]\[\d+\]/, '.\1')
  if object.respond_to?(:to_model)
    key = object.model_name.i18n_key
    i18n_default = ["#{key}.#{method_and_value}".to_sym, ""]
  end
  i18n_default ||= ""
  content = I18n.t("#{@object_name}.#{method_and_value}", :default => i18n_default, :scope => "helpers.label").presence
  content ||= if object && object.class.respond_to?(:human_attribute_name)
                object.class.human_attribute_name(method_and_value)
              end
  content ||= @method_name.humanize
  content
end