Loading a resource preserves its prefix_options. Closes #7353. Silence prefix redefinition warnings; fix type in logged error.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6032 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activeresource/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Loading a resource preserves its prefix_options.  #7353 [Ryan Daigle]
+
 * Carry over the convenience of #create from ActiveRecord.  Closes #7340.  [Ryan Daigle]
 
 * Increase ActiveResource::Base test coverage.  Closes #7173, #7174 [Rich Collins]

activeresource/lib/active_resource/base.rb

@@ -45,13 +45,17 @@ module ActiveResource
       # Sets the resource prefix
       #  prefix/collectionname/1.xml
       def prefix=(value = '/')
+        # Replace :placeholders with '#{embedded options[:lookups]}'
         prefix_call = value.gsub(/:\w+/) { |key| "\#{options[#{key}]}" }
-        instance_eval <<-end_eval, __FILE__, __LINE__
+
+        # Redefine the new methods.
+        code = <<-end_code
           def prefix_source() "#{value}" end
           def prefix(options={}) "#{prefix_call}" end
-        end_eval
+        end_code
+        silence_warnings { instance_eval code, __FILE__, __LINE__ }
       rescue
-        logger.error "Couldn't set prefix: #{$!}\n  #{method_decl}"
+        logger.error "Couldn't set prefix: #{$!}\n  #{code}"
         raise
       end
 
@@ -235,7 +239,7 @@ module ActiveResource
               resource = find_or_create_resource_for(key)
               resource.new(value)
             when ActiveResource::Base
-              value.class.new(value.attributes)
+              value.class.new(value.attributes, value.prefix_options)
             else
               value.dup rescue value
           end

activeresource/test/base_test.rb

@@ -217,6 +217,13 @@ class BaseTest < Test::Unit::TestCase
     assert_equal '5', matzs_house.id
   end
 
+  # Test that loading a resource preserves its prefix_options.
+  def test_load_preserves_prefix_options
+    address = StreetAddress.find(1, :person_id => 1)
+    ryan = Person.new(:id => 1, :name => 'Ryan', :address => address)
+    assert_equal address.prefix_options, ryan.address.prefix_options
+  end
+
   def test_create
     rick = Person.create(:name => 'Rick')
     assert rick.valid?