#21828: Can no longer use model meta methods in other methods after app loading
changes
-------------------------------------+-------------------------------------
Reporter: timo | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: master
(models, ORM) | Resolution:
Severity: Normal | Triage Stage:
Keywords: app-loading | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by akaariai):
The get_all_field_names() method isn't safe to call when all apps aren't
loaded. For example all reverse m2m fields should be in
get_all_field_names(), but all reverse m2m fields aren't guaranteed to be
available until all models are loaded (any model not yet loaded could have
a m2m field pointing to current model).
Based on the report it is hard to decide how to proceed. Which use cases
are broken? Are there other ways to achieve those use cases?
--
Ticket URL: <https://code.djangoproject.com/ticket/21828#comment:1>
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