Handling empty settings.SYSTEM_TIME_EXACT

VIPSWeb/templatetags/template_helper.py

@@ -145,10 +145,14 @@ def get_text_i18n(text_dict):
 
 @register.simple_tag
 def get_system_time(format_string):
-	if(settings.SYSTEM_TIME_EXACT != None and settings.SYSTEM_TIME_EXACT.strip() != ""):
-		time = datetime.strptime(settings.SYSTEM_TIME_EXACT,"%Y-%m-%d")
-	else:
-		time = datetime.now() + relativedelta(months = settings.SYSTEM_TIME_OFFSET_MONTHS)
+	try: 
+		if(settings.SYSTEM_TIME_EXACT != None and settings.SYSTEM_TIME_EXACT.strip() != ""):
+			time = datetime.strptime(settings.SYSTEM_TIME_EXACT,"%Y-%m-%d")
+			return time.strftime(format_string)
+	except NameError:
+		pass
+	
+	time = datetime.now() + relativedelta(months = settings.SYSTEM_TIME_OFFSET_MONTHS)
 	return time.strftime(format_string)
 
 @register.filter