translate method doesn't support arrays anymore and is optimized to be used with strings or symbols

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

actionpack/lib/action_view/helpers/translation_helper.rb

@@ -3,7 +3,7 @@ require 'action_view/helpers/tag_helper'
 module ActionView
   module Helpers
     module TranslationHelper
-      # Delegates to I18n#translate but also performs three additional functions. First, it'll catch MissingTranslationData exceptions 
+      # Delegates to I18n#translate but also performs three additional functions. First, it'll catch MissingTranslationData exceptions
       # and turn them into inline spans that contains the missing key, such that you can see in a view what is missing where.
       #
       # Second, it'll scope the key by the current partial if the key starts with a period. So if you call translate(".foo") from the
@@ -11,20 +11,14 @@ module ActionView
       # to translate many keys within the same partials and gives you a simple framework for scoping them consistently. If you don't
       # prepend the key with a period, nothing is converted.
       #
-      # Third, it’ll mark the translation as safe HTML if the key has the suffix "_html" or the last element of the key is the word 
-      # "html". For example, calling translate("footer_html") or translate("footer.html") will return a safe HTML string that won’t 
-      # be escaped by other HTML helper methods. This naming convention helps to identify translations that include HTML tags so that 
+      # Third, it’ll mark the translation as safe HTML if the key has the suffix "_html" or the last element of the key is the word
+      # "html". For example, calling translate("footer_html") or translate("footer.html") will return a safe HTML string that won’t
+      # be escaped by other HTML helper methods. This naming convention helps to identify translations that include HTML tags so that
       # you know what kind of output to expect when you call translate in a template.
 
       def translate(key, options = {})
-        options[:raise] = true
-        translation = I18n.translate(scope_key_by_partial(key), options)
-        translation = (translation.respond_to?(:join) ? translation.join : translation)
-        if html_safe_translation_key?(key)
-          translation.html_safe
-        else
-          translation
-        end
+        translation = I18n.translate(scope_key_by_partial(key), options.merge!(:raise => true))
+        html_safe_translation_key?(key) ? translation.html_safe : translation
       rescue I18n::MissingTranslationData => e
         keys = I18n.normalize_keys(e.locale, e.key, e.options[:scope])
         content_tag('span', keys.join(', '), :class => 'translation_missing')
@@ -38,12 +32,11 @@ module ActionView
       alias :l :localize
 
       private
-        
+
         def scope_key_by_partial(key)
-          strkey = key.respond_to?(:join) ? key.join : key.to_s
-          if strkey.first == "."
+          if key.to_s.first == "."
             if @_virtual_path
-              @_virtual_path.gsub(%r{/_?}, ".") + strkey
+              @_virtual_path.gsub(%r{/_?}, ".") + key.to_s
             else
               raise "Cannot use t(#{key.inspect}) shortcut because path is not available"
             end
@@ -53,8 +46,7 @@ module ActionView
         end
 
         def html_safe_translation_key?(key)
-          key = key.is_a?(Array) ? key.last : key.to_s
-          key =~ /(\b|_|\.)html$/
+          key.to_s =~ /(\b|_|\.)html$/
         end
     end
   end

actionpack/test/fixtures/test/array_translation.erb

@@ -1 +0,0 @@
-<%= t(['foo', 'bar', 'html']) %>

actionpack/test/fixtures/test/scoped_array_translation.erb

@@ -1 +0,0 @@
-<%= t(['.foo', '.bar']) %>

actionpack/test/fixtures/test/scoped_translation.erb

@@ -0,0 +1 @@
+<%= t('.foo.bar') %>

actionpack/test/template/translation_helper_test.rb

@@ -18,18 +18,6 @@ class TranslationHelperTest < ActiveSupport::TestCase
     assert_equal expected, translate(:foo)
   end
 
-  def test_translation_of_an_array
-    I18n.expects(:translate).with(["foo", "bar"], :raise => true).returns(["foo", "bar"])
-    assert_equal "foobar", translate(["foo", "bar"])
-  end
-
-  def test_translation_of_an_array_with_html
-    expected = '<a href="#">foo</a><a href="#">bar</a>'
-    I18n.expects(:translate).with(["foo", "bar", "html"], :raise => true).returns(['<a href="#">foo</a>', '<a href="#">bar</a>'])
-    @view = ActionView::Base.new(ActionController::Base.view_paths, {})
-    assert_equal expected, @view.render(:file => "test/array_translation")
-  end
-
   def test_delegates_localize_to_i18n
     @time = Time.utc(2008, 7, 8, 12, 18, 38)
     I18n.expects(:localize).with(@time)
@@ -43,9 +31,9 @@ class TranslationHelperTest < ActiveSupport::TestCase
   end
 
   def test_scoping_by_partial_of_an_array
-    I18n.expects(:translate).with("test.scoped_array_translation.foo.bar", :raise => true).returns(["foo", "bar"])
+    I18n.expects(:translate).with("test.scoped_translation.foo.bar", :raise => true).returns(["foo", "bar"])
     @view = ActionView::Base.new(ActionController::Base.view_paths, {})
-    assert_equal "foobar", @view.render(:file => "test/scoped_array_translation")
+    assert_equal "foobar", @view.render(:file => "test/scoped_translation")
   end
   
   def test_translate_does_not_mark_plain_text_as_safe_html