making selected value to accept Hash like the default option. E.g. selected: {day: params[:day].to_i, month: params[:month].to_id}

Adds in test test_date_select_with_selected_in_hash and change log

fixes typo in CHANGELOG

3 files changed, 33 insertions, 1 deletions

diff --git a/actionview/CHANGELOG.md b/actionview/CHANGELOG.md
index c010b7ce91..b37a275fe0 100644
--- a/actionview/CHANGELOG.md
+++ b/actionview/CHANGELOG.md
@@ -208,4 +208,8 @@
 
     *Daniel Gomez de Souza*
 
+*   Allow date_select helper selected option to accept hash like the default options.
+
+    *Lecky Lao*
+
 Please check [4-2-stable](https://github.com/rails/rails/blob/4-2-stable/actionview/CHANGELOG.md) for previous changes.
diff --git a/actionview/lib/action_view/helpers/date_helper.rb b/actionview/lib/action_view/helpers/date_helper.rb
index 312e41ee48..c69e4cc77e 100644
--- a/actionview/lib/action_view/helpers/date_helper.rb
+++ b/actionview/lib/action_view/helpers/date_helper.rb
@@ -845,7 +845,15 @@ module ActionView
       private
         %w( sec min hour day month year ).each do |method|
           define_method(method) do
-            @datetime.kind_of?(Numeric) ? @datetime : @datetime.send(method) if @datetime
+            if @datetime
+              if @datetime.kind_of?(Hash)
+                @datetime[method.to_sym]
+              elsif @datetime.kind_of?(Numeric)
+                @datetime
+              else
+                @datetime.send(method)
+              end
+            end
           end
         end
 
diff --git a/actionview/test/template/date_helper_test.rb b/actionview/test/template/date_helper_test.rb
index 9212420ec9..c4234a71c3 100644
--- a/actionview/test/template/date_helper_test.rb
+++ b/actionview/test/template/date_helper_test.rb
@@ -1559,6 +1559,26 @@ class DateHelperTest < ActionView::TestCase
     assert_dom_equal expected, date_select("post", "written_on", :selected => Date.new(2004, 07, 10))
   end
 
+  def test_date_select_with_selected_in_hash
+    @post = Post.new
+    @post.written_on = Date.new(2004, 6, 15)
+
+    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 selected="selected" value="2004">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"
+
+    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">June</option>\n<option value="7" selected="selected">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 << %{<select id="post_written_on_3i" name="post[written_on(3i)]">\n}
+    expected << %{<option value="1">1</option>\n<option value="2">2</option>\n<option value="3">3</option>\n<option value="4">4</option>\n<option value="5">5</option>\n<option value="6">6</option>\n<option value="7">7</option>\n<option value="8">8</option>\n<option value="9">9</option>\n<option value="10" selected="selected">10</option>\n<option value="11">11</option>\n<option value="12">12</option>\n<option value="13">13</option>\n<option value="14">14</option>\n<option value="15">15</option>\n<option value="16">16</option>\n<option value="17">17</option>\n<option value="18">18</option>\n<option value="19">19</option>\n<option value="20">20</option>\n<option value="21">21</option>\n<option value="22">22</option>\n<option value="23">23</option>\n<option value="24">24</option>\n<option value="25">25</option>\n<option value="26">26</option>\n<option value="27">27</option>\n<option value="28">28</option>\n<option value="29">29</option>\n<option value="30">30</option>\n<option value="31">31</option>\n}
+
+    expected << "</select>\n"
+
+    assert_dom_equal expected, date_select("post", "written_on", :selected => {day: 10, month: 07, year: 2004})
+  end
+
   def test_date_select_with_selected_nil
     @post = Post.new
     @post.written_on = Date.new(2004, 6, 15)