Fixed #20587 -- Made convert_values handle None values

1 files changed, 3 insertions, 0 deletions

diff --git a/django/db/backends/sqlite3/base.py b/django/db/backends/sqlite3/base.py
index a2d925ac3f..18c4029649 100644
--- a/django/db/backends/sqlite3/base.py
+++ b/django/db/backends/sqlite3/base.py
@@ -250,6 +250,9 @@ class DatabaseOperations(BaseDatabaseOperations):
         and gets dates and datetimes wrong.
         For consistency with other backends, coerce when required.
         """
+        if value is None:
+            return None
+
         internal_type = field.get_internal_type()
         if internal_type == 'DecimalField':
             return util.typecast_decimal(field.format_number(value))