adding last_status method to Database instances

pymongo/database.py

@@ -267,6 +267,13 @@ class Database(object):
             self.__connection._reset()
         return error
 
+    def last_status(self):
+        """Get status information from the last operation.
+
+        Returns a SON object with status information.
+        """
+        return self._command({"getlasterror": 1})
+
     def previous_error(self):
         """Get the most recent error to have occurred on this database.
 

test/test_database.py

@@ -195,6 +195,18 @@ class TestDatabase(unittest.TestCase):
         self.assertEqual(None, db.error())
         self.assertEqual(None, db.previous_error())
 
+    def test_last_status(self):
+        db = self.connection.pymongo_test
+
+        db.test.remove({})
+        db.test.save({"i": 1})
+
+        db.test.update({"i": 1}, {"$set": {"i": 2}})
+        self.assert_(db.last_status()["updatedExisting"])
+
+        db.test.update({"i": 1}, {"$set": {"i": 500}})
+        self.failIf(db.last_status()["updatedExisting"])
+
     def test_password_digest(self):
         db = self.connection.pymongo_test