make text_field and hidden_field omit the value attribute if the developer...

make text_field and hidden_field omit the value attribute if the developer explicitly passes in :value => nil [#4839 state:resolved]
Signed-off-by: NMichael Koziarski <michael@koziarski.com>

actionpack/lib/action_view/helpers/form_helper.rb

@@ -898,7 +898,7 @@ def to_input_field_tag(field_type, options = {})
           options.delete("size")
         end
         options["type"]  ||= field_type
-        options["value"] ||= value_before_type_cast(object) unless field_type == "file"
+        options["value"] = options.fetch("value"){ value_before_type_cast(object) } unless field_type == "file"
         options["value"] &&= html_escape(options["value"])
         add_default_name_and_id(options)
         tag("input", options)
@@ -1043,14 +1043,14 @@ def add_default_name_and_id_for_value(tag_value, options)
         def add_default_name_and_id(options)
           if options.has_key?("index")
             options["name"] ||= tag_name_with_index(options["index"])
-            options["id"] = options.fetch("id", tag_id_with_index(options["index"]))
+            options["id"] = options.fetch("id"){ tag_id_with_index(options["index"]) }
             options.delete("index")
           elsif defined?(@auto_index)
             options["name"] ||= tag_name_with_index(@auto_index)
-            options["id"] = options.fetch("id", tag_id_with_index(@auto_index))
+            options["id"] = options.fetch("id"){ tag_id_with_index(@auto_index) }
           else
             options["name"] ||= tag_name + (options.has_key?('multiple') ? '[]' : '')
-            options["id"] = options.fetch("id", tag_id)
+            options["id"] = options.fetch("id"){ tag_id }
           end
         end
 

actionpack/test/template/form_helper_test.rb

@@ -188,6 +188,11 @@ def test_text_field_removing_size
     assert_dom_equal expected, text_field("post", "title", :maxlength => 35, :size => nil)
   end
 
+  def test_text_field_with_nil_value
+    expected = '<input id="post_title" name="post[title]" size="30" type="text" />'
+    assert_dom_equal expected, text_field("post", "title", :value => nil)
+  end
+
   def test_text_field_doesnt_change_param_values
     object_name = 'post[]'
     expected = '<input id="post_123_title" name="post[123][title]" size="30" type="text" value="Hello World" />'
@@ -208,6 +213,11 @@ def test_hidden_field_with_escapes
       hidden_field("post", "title")
   end
 
+  def test_hidden_field_with_nil_value
+    expected = '<input id="post_title" name="post[title]" type="hidden" />'
+    assert_dom_equal expected, hidden_field("post", "title", :value => nil)
+  end
+
   def test_text_field_with_options
     assert_dom_equal '<input id="post_title" name="post[title]" type="hidden" value="Something Else" />',
       hidden_field("post", "title", :value => "Something Else")