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Code Issues 32 Releases Wiki Activity

Fixed #36426 -- Added support for further iterables in prefetch_related_objects().

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Thanks Sarah Boyce for the review.
This commit is contained in:
blingblin-g
2025-07-31 00:03:27 +09:00
committed by Jacob Walls
parent e059bbec96
commit e08fa42fa6
3 changed files with 37 additions and 5 deletions
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6
django/db/models/query.py
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@@ -2333,8 +2333,8 @@ def normalize_prefetch_lookups(lookups, prefix=None):
def prefetch_related_objects(model_instances, *related_lookups):
"""
Populate prefetched object caches for a list of model instances based on
the lookups/Prefetch instances given.
Populate prefetched object caches for an iterable of model instances based
on the lookups/Prefetch instances given.
"""
if not model_instances:
return # nothing to do
@@ -2402,7 +2402,7 @@ def prefetch_related_objects(model_instances, *related_lookups):
# We assume that objects retrieved are homogeneous (which is the
# premise of prefetch_related), so what applies to first object
# applies to all.
first_obj = obj_list[0]
first_obj = next(iter(obj_list))
to_attr = lookup.get_current_to_attr(level)[0]
prefetcher, descriptor, attr_found, is_fetched = get_prefetcher(
first_obj, through_attr, to_attr