#23386: Document that F expressions are reapplied each time an object is saved
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Reporter: codefisher | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Documentation | Version: 1.6
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
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 jarshwah):
I would be inclined to call this a bug - so I don't think backwards
compatibility would be much of an issue. It's totally unexpected (for me
at least) that the F() "persists" across a `model.save()` call. When the
model is saved, the attribute should be converted to the relevant
field/descriptor, rather than maintaining the proxy of the F() expression.
I have no idea how hard or easy this would be without looking into it
though.
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Ticket URL: <https://code.djangoproject.com/ticket/23386#comment:5>
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