#29472: Natural key not serializing for primary_key OneToOneField
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Reporter: Ferd Snidely | Owner: nobody
Type: Bug | Status: new
Component: Core (Serialization) | Version: 2.0
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Serializing a model using a natural key that has a OneToOneField
primary_key or parent_link fails to include the natural_key.
The problem occurs when serializing with use_natural_primary_keys=True,
and use_natural_foreign_keys=True. The parent_link field is not included
in the 'fields' structure in the json format (fails similarly for xml as
well).
Equivalent to this unanswered stackoverflow:
https://stackoverflow.com/questions/28702215/natural-key-serialize-
django-model-with-one-to-one-field-as-primary-key
I have an example project at [https://github.com/fsnidely/serialtest
github/fsnidely/serialtest], which has an example model with tests.
An example of the expected serialized model with its natural_key
('thing'):
{{{
{
"model": "sandbox.product",
"fields": {
"thing": [
"F-A"
],
"prod_secs": 42,
"low_level": -1
}
},
}}}
What is actually returned by `serializers.serialize("json", ...` or
`python manage.py dumpdata ...`:
{{{
{
"model": "sandbox.product3",
"fields": {
"prod_secs": 42,
"low_level": -1
}
}
}}}
Notice that there is no PK or NK ('thing') for the object.
A simple parent model and child model inheriting parent model with a
natural_key() is sufficient to reproduce the problem.
This problem appears to have existed in prior versions of Django as the
referenced StackOverflow issue is over 3 years old.
--
Ticket URL: <https://code.djangoproject.com/ticket/29472>
Django <https://code.djangoproject.com/>
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