charly · January 25, 2010 14:00 · Jan 25, 2010 · Jan 25, 2010
diff --git a/noproxy-association.rb b/noproxy-association.rb
@@ -44,6 +44,6 @@ def filename()"/images/books/ada.jpg";end
 end
 
 book = Book.new
-puts book.author.name # => ada
+puts book.author.name # => Nabokov
 puts book.picture.filename # => /images/books/ada.jpg
 puts book.author.address.city # => Paris
diff --git a/noproxy-association.rb b/noproxy-association.rb
@@ -0,0 +1,49 @@
+module Mongoid
+  def self.included(base)
+    base.extend NoProxyAssociation
+  end
+
+  # This little piece of codes creates an author method in Book
+  # which instanciates an anonymous class with Author included!
+  # def author
+  #   klass = Class.new do 
+  #     include Book::Author
+  #   end
+  #   return klass.new
+  # end
+  module NoProxyAssociation
+    def embed_one(embeded, opt={})
+      parent_class = self.to_s 
+      define_method(embeded) do
+        Class.new { include eval("#{parent_class}::#{embeded.to_s.capitalize}") }.new
+      end
+    end
+  end
+end
+
+# model/book.rb
+class Book
+  include Mongoid
+  embed_one :author, :sync => true
+  embed_one :picture
+
+  module Author
+    include Mongoid
+    embed_one :address
+
+    def name()"Nabokov";end
+
+    module Address
+      def city()"Paris";end
+    end
+  end
+
+  module Picture
+    def filename()"/images/books/ada.jpg";end
+  end
+end
+
+book = Book.new
+puts book.author.name # => ada
+puts book.picture.filename # => /images/books/ada.jpg
+puts book.author.address.city # => Paris
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