Merge pull request #3988 from lest/fix-date-select

fix separator insertion in date_select helper

actionpack/lib/action_view/helpers/date_helper.rb

@@ -947,8 +947,9 @@ def input_id_from_type(type)
         # and join them with their appropriate separators.
         def build_selects_from_types(order)
           select = ''
+          first_visible = order.find { |type| !@options[:"discard_#{type}"] }
           order.reverse.each do |type|
-            separator = separator(type) unless type == order.first # don't add on last field
+            separator = separator(type) unless type == first_visible # don't add before first visible field
             select.insert(0, separator.to_s + send("select_#{type}").to_s)
           end
           select.html_safe

actionpack/test/template/date_helper_test.rb

@@ -1396,6 +1396,25 @@ def test_date_select_without_day
     assert_dom_equal expected, date_select("post", "written_on", :order => [ :month, :year ])
   end
 
+  def test_date_select_without_day_with_separator
+    @post = Post.new
+    @post.written_on = Date.new(2004, 6, 15)
+
+    expected = "<input type=\"hidden\" id=\"post_written_on_3i\" name=\"post[written_on(3i)]\" value=\"1\" />\n"
+
+    expected <<  %{<select id="post_written_on_2i" name="post[written_on(2i)]">\n}
+    expected << %{<option value="1">January</option>\n<option value="2">February</option>\n<option value="3">March</option>\n<option value="4">April</option>\n<option value="5">May</option>\n<option value="6" selected="selected">June</option>\n<option value="7">July</option>\n<option value="8">August</option>\n<option value="9">September</option>\n<option value="10">October</option>\n<option value="11">November</option>\n<option value="12">December</option>\n}
+    expected << "</select>\n"
+
+    expected << "/"
+
+    expected << %{<select id="post_written_on_1i" name="post[written_on(1i)]">\n}
+    expected << %{<option value="1999">1999</option>\n<option value="2000">2000</option>\n<option value="2001">2001</option>\n<option value="2002">2002</option>\n<option value="2003">2003</option>\n<option value="2004" selected="selected">2004</option>\n<option value="2005">2005</option>\n<option value="2006">2006</option>\n<option value="2007">2007</option>\n<option value="2008">2008</option>\n<option value="2009">2009</option>\n}
+    expected << "</select>\n"
+
+    assert_dom_equal expected, date_select("post", "written_on", :date_separator => '/', :order => [ :month, :year ])
+  end
+
   def test_date_select_without_day_and_with_disabled_html_option
     @post = Post.new
     @post.written_on = Date.new(2004, 6, 15)