From ce8b8ea3b9f8c7f7fa175202c567f1aecb0cea5f Mon Sep 17 00:00:00 2001
From: rizwanreza <rizwanreza@gmail.com>
Date: Sat, 8 Aug 2009 17:27:57 +0300
Subject: [PATCH] include_blank for select_tag

---
 .../lib/action_view/helpers/form_tag_helper.rb     |    3 +++
 actionpack/test/template/form_tag_helper_test.rb   |   12 ++++++++++++
 2 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/actionpack/lib/action_view/helpers/form_tag_helper.rb b/actionpack/lib/action_view/helpers/form_tag_helper.rb
index 1abe777..51bcf28 100644
--- a/actionpack/lib/action_view/helpers/form_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_tag_helper.rb
@@ -79,6 +79,9 @@ module ActionView
       #   #    <option>Paris</option><option>Rome</option></select>
       def select_tag(name, option_tags = nil, options = {})
         html_name = (options[:multiple] == true && !name.to_s.ends_with?("[]")) ? "#{name}[]" : name
+        if blank = options.delete(:include_blank)
+          option_tags = "<option value=\"\">#{blank if blank.kind_of?(String)}</option>" + option_tags
+        end
         content_tag :select, option_tags, { "name" => html_name, "id" => sanitize_to_id(name) }.update(options.stringify_keys)
       end
 
diff --git a/actionpack/test/template/form_tag_helper_test.rb b/actionpack/test/template/form_tag_helper_test.rb
index 7900426..338c326 100644
--- a/actionpack/test/template/form_tag_helper_test.rb
+++ b/actionpack/test/template/form_tag_helper_test.rb
@@ -135,6 +135,18 @@ class FormTagHelperTest < ActionView::TestCase
     input_elem = root_elem(select_tag("project[1]people", "<option>david</option>"))
     assert_match VALID_HTML_ID, input_elem['id']
   end
+  
+  def test_select_tag_with_blank
+    actual = select_tag "places", "<option>Home</option><option>Work</option><option>Pub</option>", :include_blank => true
+    expected = %(<select id="places" name="places"><option value=""></option><option>Home</option><option>Work</option><option>Pub</option></select>)
+    assert_dom_equal expected, actual
+  end
+  
+  def test_select_tag_with_blank
+    actual = select_tag "places", "<option>Home</option><option>Work</option><option>Pub</option>", :include_blank => "string"
+    expected = %(<select id="places" name="places"><option value="">string</option><option>Home</option><option>Work</option><option>Pub</option></select>)
+    assert_dom_equal expected, actual
+  end
 
   def test_text_area_tag_size_string
     actual = text_area_tag "body", "hello world", "size" => "20x40"
-- 
1.6.2.2