Fixed #30491 -- Clarified when save() on object with pk executes INSERT.#11390
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felixxm merged 1 commit intodjango:masterfrom May 28, 2019
bsolomon1124:doc-insert-update-pk
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Fixed #30491 -- Clarified when save() on object with pk executes INSERT.#11390felixxm merged 1 commit intodjango:masterfrom bsolomon1124:doc-insert-update-pk
felixxm merged 1 commit intodjango:masterfrom
bsolomon1124:doc-insert-update-pk
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I've amended this one based on your comment above @felixxm . Do you think duplicating the short code example from topics/db/models/#field-options would be useful here too, or would it be overkill? |
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@bsolomon1124 Thanks! I think an example is not necessary, I rephrased your clarification. |
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…callable. Backport of 0bf627f from master
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Ticket: https://code.djangoproject.com/ticket/30491
The docs for 'How Django knows to UPDATE vs. INSERT'
do not make any mention of a potentially confusing condition,
which is that updating a PK followed by a call to
.save()will always result in an INSERT rather than an UPDATE.
While this note is present in the primary key docstring
itself, it would be worthwhile to duplicate it to this section
as a gotcha.
See also: https://stackoverflow.com/q/56212145/7954504