Fully marshal AR::Base objects. Fixes #2431.

activerecord/lib/active_record/base.rb

@@ -940,17 +940,6 @@ def before_remove_const #:nodoc:
         self.current_scope = nil
       end
 
-      # Specifies how the record is loaded by +Marshal+.
-      #
-      # +_load+ sets an instance variable for each key in the hash it takes as input.
-      # Override this method if you require more complex marshalling.
-      def _load(data)
-        record = allocate
-        record.init_with(Marshal.load(data))
-        record
-      end
-
-
       # Finder methods must instantiate through this method to work with the
       # single-table inheritance model that makes it possible to create
       # objects of different types from the same table.
@@ -1602,16 +1591,6 @@ def init_with(coder)
         self
       end
 
-      # Specifies how the record is dumped by +Marshal+.
-      #
-      # +_dump+ emits a marshalled hash which has been passed to +encode_with+. Override this
-      # method if you require more complex marshalling.
-      def _dump(level)
-        dump = {}
-        encode_with(dump)
-        Marshal.dump(dump)
-      end
-
       # Returns a String, which Action Pack uses for constructing an URL to this
       # object. The default implementation returns this record's id as a String,
       # or nil if this record's unsaved.

activerecord/test/cases/base_test.rb

@@ -1812,6 +1812,19 @@ def test_marshal_round_trip
     assert_equal expected.attributes, actual.attributes
   end
 
+  def test_marshal_new_record_round_trip
+    post = Marshal.load(Marshal.dump(Post.new))
+    assert post.new_record?, "should be a new record"
+  end
+
+  def test_marshalling_with_associations
+    post = Post.new
+    post.comments.build
+    post = Marshal.load(Marshal.dump(post))
+
+    assert_equal 1, post.comments.length
+  end
+
   def test_attribute_names
     assert_equal ["id", "type", "ruby_type", "firm_id", "firm_name", "name", "client_of", "rating", "account_id"],
                  Company.attribute_names