make QuerySet.exclude() range lookup exclude data with a null boundary

Author: WaVEV

django_mongodb/base.py

@@ -102,7 +102,12 @@ def _isnull_operator(a, b):
  "lte": lambda a, b: {"$lte": [a, b]},
  "in": lambda a, b: {"$in": [a, b]},
  "isnull": _isnull_operator,
- "range": lambda a, b: {"$and": [{"$gte": [a, b[0]]}, {"$lte": [a, b[1]]}]},
+ "range": lambda a, b: {
+ "$and": [
+ {"$or": [DatabaseWrapper._isnull_operator(b[0], True), {"$gte": [a, b[0]]}]},
+ {"$or": [DatabaseWrapper._isnull_operator(b[1], True), {"$lte": [a, b[1]]}]},
+ ]
+ },
  "iexact": lambda a, b: regex_match(a, ("^", b, {"$literal": "$"}), insensitive=True),
  "startswith": lambda a, b: regex_match(a, ("^", b)),
  "istartswith": lambda a, b: regex_match(a, ("^", b), insensitive=True),

django_mongodb/features.py

@@ -54,8 +54,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
  "db_functions.datetime.test_extract_trunc.DateFunctionWithTimeZoneTests.test_trunc_timezone_applied_before_truncation",
  # Length of null considered zero rather than null.
  "db_functions.text.test_length.LengthTests.test_basic",
- # range lookup includes incorrect values.
- "expressions.tests.IterableLookupInnerExpressionsTests.test_expressions_in_lookups_join_choice",
  # Unexpected alias_refcount in alias_map.
  "queries.tests.Queries1Tests.test_order_by_tables",
  # The $sum aggregation returns 0 instead of None for null.