add selected and disabled option to grouped select

2 files changed, 24 insertions, 1 deletions

diff --git a/actionpack/lib/action_view/helpers/tags/grouped_collection_select.rb b/actionpack/lib/action_view/helpers/tags/grouped_collection_select.rb
index 507466a57a..507ba8835f 100644
--- a/actionpack/lib/action_view/helpers/tags/grouped_collection_select.rb
+++ b/actionpack/lib/action_view/helpers/tags/grouped_collection_select.rb
@@ -14,8 +14,13 @@ module ActionView
         end
 
         def render
+          option_tags_options = {
+            :selected => @options.fetch(:selected) { value(@object) },
+            :disabled => @options[:disabled]
+          }
+
           select_content_tag(
-            option_groups_from_collection_for_select(@collection, @group_method, @group_label_method, @option_key_method, @option_value_method, value(@object)), @options, @html_options
+            option_groups_from_collection_for_select(@collection, @group_method, @group_label_method, @option_key_method, @option_value_method, option_tags_options), @options, @html_options
           )
         end
       end
diff --git a/actionpack/test/template/form_options_helper_test.rb b/actionpack/test/template/form_options_helper_test.rb
index a32525c485..bed67e35b3 100644
--- a/actionpack/test/template/form_options_helper_test.rb
+++ b/actionpack/test/template/form_options_helper_test.rb
@@ -1100,6 +1100,24 @@ class FormOptionsHelperTest < ActionView::TestCase
     )
   end
 
+  def test_grouped_collection_select_with_selected
+    @post = Post.new
+
+    assert_dom_equal(
+      %Q{<select id="post_origin" name="post[origin]"><optgroup label="&lt;Africa&gt;"><option value="&lt;sa&gt;">&lt;South Africa&gt;</option>\n<option value="so">Somalia</option></optgroup><optgroup label="Europe"><option value="dk" selected="selected">Denmark</option>\n<option value="ie">Ireland</option></optgroup></select>},
+      grouped_collection_select("post", "origin", dummy_continents, :countries, :continent_name, :country_id, :country_name, :selected => 'dk')
+    )
+  end
+
+  def test_grouped_collection_select_with_disabled_value
+    @post = Post.new
+
+    assert_dom_equal(
+      %Q{<select id="post_origin" name="post[origin]"><optgroup label="&lt;Africa&gt;"><option value="&lt;sa&gt;">&lt;South Africa&gt;</option>\n<option value="so">Somalia</option></optgroup><optgroup label="Europe"><option disabled="disabled" value="dk">Denmark</option>\n<option value="ie">Ireland</option></optgroup></select>},
+      grouped_collection_select("post", "origin", dummy_continents, :countries, :continent_name, :country_id, :country_name, :disabled => 'dk')
+    )
+  end
+
   def test_grouped_collection_select_under_fields_for
     @post = Post.new
     @post.origin = 'dk'