ignore empty timestamps in new(est) criteria

diff --git a/nonstop/models.py b/nonstop/models.py
index 4ce419cbb562a346fc5da9549240fa2c7a0c8266..d84cd268cc5dec9bb7b51067a2d3fef656454fa1 100644 (file)
--- a/nonstop/models.py
+++ b/nonstop/models.py
@@ -164,10 +164,14 @@ class Track(models.Model):
         return self.cfwb
 
     def match_criteria_newest(self):
+        if not self.added_to_nonstop_timestamp:
+            return False
         now = datetime.datetime.now()
         return (now - self.added_to_nonstop_timestamp).days < 30
 
     def match_criteria_new(self):
+        if not self.added_to_nonstop_timestamp:
+            return False
         now = datetime.datetime.now()
         return (now - self.added_to_nonstop_timestamp).days < 100