Makes form_helper use overriden model accessors

[rails#3374 state:committed]

Author: spastorino

actionpack/lib/action_view/helpers/form_helper.rb

@@ -1005,9 +1005,9 @@ def value(object, method_name)
 
         def value_before_type_cast(object, method_name)
           unless object.nil?
-            object.respond_to?(method_name + "_before_type_cast") ?
-            object.send(method_name + "_before_type_cast") :
-            object.send(method_name)
+            object.respond_to?(method_name) ?
+            object.send(method_name) :
+            object.send(method_name + "_before_type_cast")
           end
         end
 

actionpack/test/template/form_helper_test.rb

@@ -4,6 +4,16 @@
 class FormHelperTest < ActionView::TestCase
   tests ActionView::Helpers::FormHelper
 
+  class Developer
+    def name_before_type_cast
+      "David"
+    end
+
+    def name
+      "Santiago"
+    end
+  end
+
   def form_for(*)
     @output_buffer = super
   end
@@ -233,6 +243,13 @@ def test_text_field_with_custom_type
       text_field("user", "email", :type => "email")
   end
 
+  def test_text_field_from_a_user_defined_method
+    @developer = Developer.new
+    assert_dom_equal(
+      '<input id="developer_name" name="developer[name]" size="30" type="text" value="Santiago" />', text_field("developer", "name")
+    )
+  end
+
   def test_check_box
     assert_dom_equal(
       '<input name="post[secret]" type="hidden" value="0" /><input checked="checked" id="post_secret" name="post[secret]" type="checkbox" value="1" />',