#26511: Document how to do a substring search in JSONField
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Reporter: eoinmurray | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Documentation | Version: master
Severity: Normal | Resolution:
Keywords: postgres, jsonb | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
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Comment (by charettes):
It looks like what we really need here is support for the `->>` operator
as `(lhs -> key)::text` is the JSON representation of the string
(`('"foo"'::jsonb)::text` yields `'"foo"'`).
I believe this should be done by introducing a new expression for this
purpose and documenting it.
In the meantime we could document using `Func('data',
template="%(expressions)s ->> 'hobby'", output_field=models.TextField())`.
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Ticket URL: <https://code.djangoproject.com/ticket/26511#comment:10>
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