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Add modification for update or create reverse relations method in mixin #177

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Add modification for update or create reverse relations method in mixin #177

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ed3a6b3
pass additional context to the serializer
russian-developer Jun 8, 2023
1b25692
typo error
russian-developer Jun 8, 2023
48f0ffe
add modification for many-to-many fields with though argument in `upd…
qzibet Jun 12, 2023
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9 changes: 9 additions & 0 deletions drf_writable_nested/mixins.py
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Original file line number Diff line number Diff line change
Expand Up @@ -170,13 +170,18 @@ def update_or_create_reverse_relations(self, instance, reverse_relations):
)
elif not related_field.many_to_many:
save_kwargs[related_field.name] = instance
elif related_field.many_to_many and related_field.remote_field.through:
save_kwargs['parent_instance'] = instance

new_related_instances = []
errors = []
for data in related_data:
obj = instances.get(
self._get_related_pk(data, field.Meta.model)
)
if not obj and (getattr(field, 'only_assignation_allowed', False) or
getattr(field.parent, 'only_assignation_allowed', False)):
continue
serializer = self._get_serializer_for_field(
field,
instance=obj,
Expand Down Expand Up @@ -206,12 +211,16 @@ def update_or_create_direct_relations(self, attrs, relations):
for field_name, (field, field_source) in relations.items():
obj = None
data = self.get_initial()[field_name]

model_class = field.Meta.model
pk = self._get_related_pk(data, model_class)
if pk:
obj = model_class.objects.filter(
pk=pk,
).first()
else:
if getattr(field, 'only_assignation_allowed', False):
continue
serializer = self._get_serializer_for_field(
field,
instance=obj,
Expand Down