From f5535fa085cac7fc9efe26f2fd72c1f51cb05bac Mon Sep 17 00:00:00 2001 From: Friedrich Lindenberg Date: Wed, 14 May 2014 14:39:13 +0200 Subject: [PATCH] Handle NULL dates, fixes #91. --- dataset/persistence/util.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/dataset/persistence/util.py b/dataset/persistence/util.py index 9a6b8fe..b41ef29 100644 --- a/dataset/persistence/util.py +++ b/dataset/persistence/util.py @@ -72,11 +72,15 @@ def sqlite_datetime_fix(): epoch = datetime(1970, 1, 1, 0, 0, 0) def process_bind_param(self, value, dialect): + if value is None: + return None if isinstance(value, datetime): return value return (value / 1000 - self.epoch).total_seconds() def process_result_value(self, value, dialect): + if value is None: + return None if isinstance(value, int): return self.epoch + timedelta(seconds=value / 1000) return value