#29377: DatabaseSchemaEditor: add a hook to run DML statements after the entire
schema is created
-------------------------------------+-------------------------------------
Reporter: Maximiliano Robaina | Owner: nobody
Type: New feature | Status: new
Component: Migrations | Version: 2.0
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
-------------------------------------+-------------------------------------
Changes (by Maximiliano Robaina):
* cc: Maximiliano Robaina (added)
Old description:
> This feature request is to better support of third-party database
> backends.
> In my case (Firebird SQL) to add a new field on already existing and
> populated table is not enough set and drop a default value, we need to
> update the new field with efective default value. It is not possible
> without commit the schema alteration.
> An aproach could be to have a kind of hook to run sql statements (DML
> statement in this case) when the schema altereation finished (and
> commited). Of course, must bu runned in another transaction.
New description:
A nice option would be to have a hook to run DML statements after all
migrations were applied and commited.
A uses case (for example in Firebird SQL) is to add a new field on
already existing and populated table. Is not enough set and drop a default
value, we need to update the new field with efective default value. It is
not possible without commit the schema alteration.
An aproach could be to have a kind of hook to run sql statements (DML
statement in this case) when the schema altereation finished (and
commited). Of course, must bu runned in another transaction.
This feature request is to better support of third-party database
backends.
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Ticket URL: <https://code.djangoproject.com/ticket/29377#comment:3>
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