1 files changed, 19 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb
index 6a776966bb..5ee644c0b4 100644
--- a/activerecord/lib/active_record/transactions.rb
+++ b/activerecord/lib/active_record/transactions.rb
@@ -126,11 +126,28 @@ module ActiveRecord
     end
 
     def save_with_transactions(perform_validation = true) #:nodoc:
-      transaction { save_without_transactions(perform_validation) }
+      rollback_active_record_state { transaction { save_without_transactions(perform_validation) } }
     end
 
     def save_with_transactions! #:nodoc:
-      transaction { save_without_transactions! }
+      rollback_active_record_state { transaction { save_without_transactions! } }
+    end
+    
+    # stores the current id and @new_record values so that they are reset
+    # after rolling the transaction back.
+    def rollback_active_record_state
+      previous_new_record = @new_record
+      previous_id = self.id
+      response = yield
+    rescue
+      response = false
+      raise
+    ensure
+      unless response
+        @new_record = previous_new_record
+        self.id = previous_id
+      end
+      response
     end
   end
 end