#27791: update_or_create() doesn't work properly when model has auto_now=True
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Reporter: Andrew Chiw | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.10
(models, ORM) |
Severity: Normal | Resolution:
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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Comment (by Ryan Castner):
The fact that you use `unique_together = (("base", "target", "date"),)` is
causing the error you are seeing, it is trying to put two values in there
since auto_now adds the current datetime as Tim stated as well as your
provided datetime value and it can't create two primary keys as it
violates the single unique primary key constraint generated by those three
fields.
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Ticket URL: <https://code.djangoproject.com/ticket/27791#comment:2>
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