[DAV] Fix comparing dates to time-range filter datetimes

aleksis/core/util/dav_handler/calendar.py

@@ -13,6 +13,14 @@ class TimeRangeFilter(ElementHandler):
     name = "{urn:ietf:params:xml:ns:caldav}time-range"
     invisible = True
 
+    @staticmethod
+    def _compare_date_time(a, b):
+        if not isinstance(a, datetime):
+            b = b.date()
+        elif not isinstance(b, datetime):
+            a = a.date()
+        return a <= b
+
     def post_handle(self):
         for k, v in self.attrs.items():
             d = datetime.fromisoformat(v)
@@ -20,7 +28,7 @@ class TimeRangeFilter(ElementHandler):
             if k == (None, "start"):
                 self.request.objects = list(
                     filter(
-                        lambda obj: obj.value_end_datetime(obj) >= d
+                        lambda obj: self._compare_date_time(d, obj.value_end_datetime(obj))
                         if obj.value_end_datetime(obj) is not None
                         else True,
                         self.request.objects,
@@ -29,7 +37,7 @@ class TimeRangeFilter(ElementHandler):
 
             elif k == (None, "end"):
                 self.request.objects = list(
-                    filter(lambda obj: obj.value_start_datetime(obj) <= d, self.request.objects)
+                    filter(lambda obj: self._compare_date_time(obj.value_start_datetime(obj), d), self.request.objects)
                 )