lib/mongoid/persistence/atomic/unset.rb in mongoid-2.8.1 vs lib/mongoid/persistence/atomic/unset.rb in mongoid-3.0.0.rc

@@ -1,9 +1,9 @@
 # encoding: utf-8
-module Mongoid #:nodoc:
-  module Persistence #:nodoc:
-    module Atomic #:nodoc:
+module Mongoid
+  module Persistence
+    module Atomic
 
       # Performs atomic $unset operations.
       class Unset
         include Operation
 
@@ -16,11 +16,10 @@
         #
         # @since 2.1.0
         def persist
           prepare do
             document.attributes.delete(field)
-            collection.update(document.atomic_selector, operation("$unset"), options)
-            document.remove_change(value)
+            execute("$unset")
           end
         end
       end
     end
   end