#33333: Models with a BinaryField fail to deepcopy
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Reporter: Adam | Owner: nobody
Zimmerman |
Type: Bug | Status: new
Component: Database | Version: 3.2
layer (models, ORM) |
Severity: Normal | Keywords:
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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While using Postgres, models with a BinaryField fail to deepcopy, due to
Django returning these field values as `memoryview` objects. This causes
issues when creating instances in `setUpTestData()` during tests.
The specific errors seem to be fairly inconsistent and hard to reproduce.
But often the exception complains about a missing `_state` field, or that
`_state` has no attribute `db`.
I've currently worked around this by implementing a mixin for models where
the `__getstate__()` method converts any `memoryview`s to `bytes`. But I
don't know if that's the correct solution for Django generally.
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Ticket URL: <https://code.djangoproject.com/ticket/33333>
Django <https://code.djangoproject.com/>
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