2 files changed, 18 insertions, 5 deletions
diff --git a/actionpack/lib/action_view/helpers/form_helper.rb b/actionpack/lib/action_view/helpers/form_helper.rb
index f148ffbd73..d687866d0d 100644
--- a/actionpack/lib/action_view/helpers/form_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_helper.rb
@@ -995,8 +995,16 @@ module ActionView
           label_tag(name_and_id["id"], options, &block)
         else
           content = if text.blank?
+            object_name.gsub!(/\[(.*)_attributes\]\[\d\]/, '.\1')
             method_and_value = tag_value.present? ? "#{method_name}.#{tag_value}" : method_name
-            I18n.t("helpers.label.#{object_name}.#{method_and_value}", :default => "").presence
+
+            if object.respond_to?(:to_model)
+              key = object.class.model_name.i18n_key
+              i18n_default = ["#{key}.#{method_and_value}".to_sym, ""]
+            end
+
+            i18n_default ||= ""
+            I18n.t("#{object_name}.#{method_and_value}", :default => i18n_default, :scope => "helpers.label").presence
           else
             text.to_s
           end
diff --git a/actionpack/lib/action_view/helpers/translation_helper.rb b/actionpack/lib/action_view/helpers/translation_helper.rb
index be64dc823e..42726f888c 100644
--- a/actionpack/lib/action_view/helpers/translation_helper.rb
+++ b/actionpack/lib/action_view/helpers/translation_helper.rb
@@ -45,11 +45,16 @@ module ActionView
       # you know what kind of output to expect when you call translate in a template.
       def translate(key, options = {})
         options.merge!(:rescue_format => :html) unless options.key?(:rescue_format)
-        translation = I18n.translate(scope_key_by_partial(key), options)
-        if html_safe_translation_key?(key) && translation.respond_to?(:html_safe)
-          translation.html_safe
+        if html_safe_translation_key?(key)
+          html_safe_options = options.dup
+          options.except(*I18n::RESERVED_KEYS).each do |name, value|
+            html_safe_options[name] = ERB::Util.html_escape(value.to_s)
+          end
+          translation = I18n.translate(scope_key_by_partial(key), html_safe_options)
+
+          translation.respond_to?(:html_safe) ? translation.html_safe : translation
         else
-          translation
+          I18n.translate(scope_key_by_partial(key), options)
         end
       end
       alias :t :translate