Model#human_attribute_name now accept symbols [#3025 status:resolved]

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

activerecord/lib/active_record/base.rb

@@ -1394,7 +1394,7 @@ def human_attribute_name(attribute_key_name, options = {})
         end
         defaults << options[:default] if options[:default]
         defaults.flatten!
-        defaults << attribute_key_name.humanize
+        defaults << attribute_key_name.to_s.humanize
         options[:count] ||= 1
         I18n.translate(defaults.shift, options.merge(:default => defaults, :scope => [:activerecord, :attributes]))
       end

activerecord/test/cases/i18n_test.rb

@@ -12,6 +12,11 @@ def test_translated_model_attributes
     I18n.backend.store_translations 'en', :activerecord => {:attributes => {:topic => {:title => 'topic title attribute'} } }
     assert_equal 'topic title attribute', Topic.human_attribute_name('title')
   end
+  
+  def test_translated_model_attributes_with_symbols
+    I18n.backend.store_translations 'en', :activerecord => {:attributes => {:topic => {:title => 'topic title attribute'} } }
+    assert_equal 'topic title attribute', Topic.human_attribute_name(:title)
+  end
 
   def test_translated_model_attributes_with_sti
     I18n.backend.store_translations 'en', :activerecord => {:attributes => {:reply => {:title => 'reply title attribute'} } }