diff options
Diffstat (limited to 'django')
| -rw-r--r-- | django/db/models/sql/where.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/django/db/models/sql/where.py b/django/db/models/sql/where.py index 662d99a4a2..277ccef4f2 100644 --- a/django/db/models/sql/where.py +++ b/django/db/models/sql/where.py @@ -43,6 +43,10 @@ class WhereNode(tree.Node): return alias, col, field, lookup_type, value = data + if hasattr(value, '__iter__') and hasattr(value, 'next'): + # Consume any generators immediately, so that we can determine + # emptiness and transform any non-empty values correctly. + value = list(value) try: if field: params = field.get_db_prep_lookup(lookup_type, value) |