#21454: Ignoring certain fields on INSERT and UPDATE queries
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Reporter: mpessas | Owner: mpessas
Type: New feature | Status: assigned
Component: Database layer | Version: master
(models, ORM) | Resolution:
Severity: Normal | Triage Stage: Accepted
Keywords: | Needs documentation: 0
Has patch: 1 | Patch needs improvement: 0
Needs tests: 0 | UI/UX: 0
Easy pickings: 0 |
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Changes (by akaariai):
* stage: Unreviewed => Accepted
Comment:
It would be really useful to do autorefresh after save. Access to database
set values could also be done with RETURNING, but for first implementation
just executing a query from .save() would be enough.
Validation code is needed to check that primary keys aren't
use_on_insert/use_on_update.
Should there be a way to override the database assignment? How about
.update(modified_field=somevalue)? The simplest solution seems to be to
not allow override in .save(), but allow .update() of db default fields
Fixtures loading should probably force-insert/update the fixture's value,
not use database default. This is doable by checking that if raw=True in
save, then insert everything as-is and don't do auto-update.
In addition, you will need also ModelForms support.
In general I see this feature as useful when you need it, so marking as
accepted.
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Ticket URL: <https://code.djangoproject.com/ticket/21454#comment:2>
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