#32179: Add JSONObject Func
-------------------------------------+-------------------------------------
Reporter: | Owner: nobody
Chiorufarewerin |
Type: New | Status: new
feature |
Component: Database | Version: master
layer (models, ORM) | Keywords: json_object,
Severity: Normal | jsonb_build_object, JSONObject
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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So I currently use for build json object for postgres like:
{{{
Func(
Value('name'), 'authors__name',
Value('alias'), 'authors__alias',
function='jsonb_build_object'
)
}}}
I checked other dbs formats for this, and all of this have that
functional:
https://www.sqlite.org/json1.html#jobj
https://dev.mysql.com/doc/refman/8.0/en/json-creation-functions.html
#function_json-object
https://docs.oracle.com/en/database/oracle/oracle-
database/12.2/sqlrf/JSON_OBJECT.html
I use it for related objects, for example:
{{{
class Article(models.Model):
title = models.CharField(max_length=50)
class Product(models.Model):
article = models.ForeignKey(Article, related_name='products',
on_delete=models.CASCADE)
name = models.CharField(max_length=255)
Product.objects.annotate(
article_json=Func(
Value('title'), 'article__title',
function='JSONB_BUILD_OBJECT',
)
).values('name', 'article_json').first()
}}}
So, with JSONObject will be something like this:
{{{
Product.objects.annotate(
article_json=JSONObject(
title='article__title',
)
).values('name', 'article_json').first()
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/32179>
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