Add a :namespace option to AR::Base#to_xml [Koz]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5130 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Add a :namespace option to  AR::Base#to_xml [Koz]
+
 * Deprecation tests. Remove warnings for dynamic finders and for the foo_count method if it's also an attribute. [Jeremy Kemper]
 
 * Mock Time.now for more accurate Touch mixin tests.  #6213 [Dan Peterson]

activerecord/lib/active_record/xml_serialization.rb

@@ -222,12 +222,17 @@ module ActiveRecord #:nodoc:
     end
 
     def serialize
-      builder.tag!(root) do
+      args = [root]
+      if options[:namespace]
+        args << {:xmlns=>options[:namespace]}
+      end
+        
+      builder.tag!(*args) do
         add_attributes
         add_includes
         add_procs
       end
-    end
+    end        
     
     alias_method :to_s, :serialize
 

activerecord/test/xml_serialization_test.rb

@@ -20,7 +20,13 @@ class XmlSerializationTest < Test::Unit::TestCase
     assert_match %r{^<contact>},  @xml
     assert_match %r{</contact>$}, @xml
   end
-
+  
+  def test_should_serialize_default_root_with_namespace
+    @xml = Contact.new.to_xml :namespace=>"http://xml.rubyonrails.org/contact"
+    assert_match %r{^<contact xmlns="http://xml.rubyonrails.org/contact">},  @xml
+    assert_match %r{</contact>$}, @xml
+  end
+  
   def test_should_serialize_custom_root
     @xml = Contact.new.to_xml :root => 'xml_contact'
     assert_match %r{^<xml-contact>},  @xml