#24509: Allow Expressions when saving new models
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Reporter: AlexHill | Owner: nobody
Type: New feature | Status: new
Component: Database layer (models, ORM) | Version: master
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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Opening a ticket after discussion on IRC with Josh.
You can use `Expression` when updating models, but it would also be useful
to be able to use them when creating models, particularly in order to
apply database functions to newly-inserted values.
My specific use case for this is a PostgreSQL `TSVectorField`, where
instead of just inserting a value, I want to insert
`strip(to_tsvector(<ts_config>, unaccent(<value>)))`. Ideally, I would be
able to define these all as `Func`s and insert an `Expression`.
I propose to fix this by making `SQLInsertCompiler` check for
`resolve_expressions` and `as_sql`, as `SQLUpdateCompiler` does.
Alex
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Ticket URL: <https://code.djangoproject.com/ticket/24509>
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