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get_prefetches_for_serializer() should reference serializer field source if set

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This commit is contained in:
Jeremy Stretch 2024-02-13 14:15:15 -05:00
parent 96eaaac201
commit e4c93edf24
1 changed files with 10 additions and 5 deletions
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15
netbox/utilities/api.py
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@ -106,19 +106,24 @@ def get_prefetches_for_serializer(serializer_class, fields_to_include=None):
prefetch_fields = []
for field_name in fields_to_include:
serializer_field = serializer_class._declared_fields.get(field_name)
# Determine the name of the model field referenced by the serializer field
model_field_name = field_name
if serializer_field and serializer_field.source:
model_field_name = serializer_field.source
# If the serializer field does not map to a discrete model field, skip it.
try:
field = model._meta.get_field(field_name)
field = model._meta.get_field(model_field_name)
if isinstance(field, (RelatedField, ManyToOneRel, GenericForeignKey)):
prefetch_fields.append(field.name)
except FieldDoesNotExist:
continue
if isinstance(field, (RelatedField, ManyToOneRel, GenericForeignKey)):
# TODO: Use serializer field source if set, else use its name
prefetch_fields.append(field_name)
# If this field is represented by a nested serializer, recurse to resolve prefetches
# for the related object.
if serializer_field := serializer_class._declared_fields.get(field_name):
if serializer_field:
if issubclass(type(serializer_field), Serializer):
for subfield in get_prefetches_for_serializer(type(serializer_field)):
prefetch_fields.append(f'{field_name}__{subfield}')