Fix ambiguity in i18n lookup, closes #384.

lib/simple_form/inputs/base.rb

@@ -120,7 +120,7 @@ module SimpleForm
       #   simple_form.{namespace}.{model}.{nested}.{attribute}
       #   simple_form.{namespace}.{nested}.{action}.{attribute}
       #   simple_form.{namespace}.{nested}.{attribute}
-      #   simple_form.{namespace}.{attribute}
+      #   simple_form.{namespace}.defaults.{attribute}
       #
       #  Example:
       #
@@ -144,7 +144,7 @@ module SimpleForm
           lookups << :"#{joined_model_names}.#{lookup_action}.#{reflection_or_attribute_name}"
           lookups << :"#{joined_model_names}.#{reflection_or_attribute_name}"
         end
-        lookups << :"#{attribute_name}" unless reflection
+        lookups << :"defaults.#{attribute_name}" unless reflection
         lookups << default
 
         I18n.t(lookups.shift, :scope => :"simple_form.#{namespace}", :default => lookups).presence

test/components/label_test.rb

@@ -73,7 +73,7 @@ class IsolatedLabelTest < ActionView::TestCase
   end
 
   test 'input should use i18n based only on attribute to lookup translation' do
-    store_translations(:en, :simple_form => { :labels => { :age => 'Idade' } } ) do
+    store_translations(:en, :simple_form => { :labels => { :defaults => {:age => 'Idade'} } } ) do
       with_label_for @user, :age, :integer
       assert_select 'label[for=user_age]', /Idade/
     end
@@ -81,7 +81,7 @@ class IsolatedLabelTest < ActionView::TestCase
 
   test 'input should not use i18n label if translate is false' do
     swap SimpleForm, :translate_labels => false do
-      store_translations(:en, :simple_form => { :labels => { :age => 'Idade' } } ) do
+      store_translations(:en, :simple_form => { :labels => { :defaults => {:age => 'Idade'} } } ) do
         with_label_for @user, :age, :integer
         assert_select 'label[for=user_age]', /Age/
       end

test/form_builder/hint_test.rb

@@ -90,7 +90,7 @@ class HintTest < ActionView::TestCase
 
   test 'hint should use i18n just with attribute to lookup translation' do
     store_translations(:en, :simple_form => { :hints => {
-      :name => 'Content of this input will be downcased...'
+      :defaults => {:name => 'Content of this input will be downcased...'}
     } }) do
       with_hint_for @user, :name
       assert_select 'span.hint', 'Content of this input will be downcased...'