#32203: Error with values with JSON path lookup in Sqlite when value is numeric.
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Reporter: Gordon Wrigley | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 3.1
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
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Description changed by Gordon Wrigley:
Old description:
> This Django 3.1.3, I only see this with Sqlite, it works fine with MySQL
> and Postgres.
>
> When I do a path lookup with values like
> `Bob.objects.values("my_json_field__position")` if there is an integer,
> float or bool in "position" then I get a JSON decode error.
> Strings, nones, dicts and lists all work, fetching the top level dict
> works and filtering on the path lookup works.
>
> `TypeError: the JSON object must be str, bytes or bytearray, not float`
>
> {{{
> ..\..\.venv\data_browser\lib\site-packages\django\db\models\query.py:287:
> in __iter__
> self._fetch_all()
> ..\..\.venv\data_browser\lib\site-
> packages\django\db\models\query.py:1308: in _fetch_all
> self._result_cache = list(self._iterable_class(self))
> ..\..\.venv\data_browser\lib\site-packages\django\db\models\query.py:111:
> in __iter__
> for row in compiler.results_iter(chunked_fetch=self.chunked_fetch,
> chunk_size=self.chunk_size):
> ..\..\.venv\data_browser\lib\site-
> packages\django\db\models\sql\compiler.py:1100: in apply_converters
> value = converter(value, expression, connection)
> ..\..\.venv\data_browser\lib\site-
> packages\django\db\models\fields\json.py:79: in from_db_value
> return json.loads(value, cls=self.decoder)
> }}}
>
> Queries that produce strings or None's seem to work fine.
New description:
This Django 3.1.3, I only see this with Sqlite, it works fine with MySQL
and Postgres.
When I do a path lookup with values like
`Bob.objects.values("my_json_field__position")` if there is an integer,
float or bool in "position" then I get a JSON decode error.
Strings, nones, dicts and lists all work, fetching the top level dict
works and filtering on the path lookup works.
`TypeError: the JSON object must be str, bytes or bytearray, not float`
{{{
..\..\.venv\data_browser\lib\site-packages\django\db\models\query.py:287:
in __iter__
self._fetch_all()
..\..\.venv\data_browser\lib\site-packages\django\db\models\query.py:1308:
in _fetch_all
self._result_cache = list(self._iterable_class(self))
..\..\.venv\data_browser\lib\site-packages\django\db\models\query.py:111:
in __iter__
for row in compiler.results_iter(chunked_fetch=self.chunked_fetch,
chunk_size=self.chunk_size):
..\..\.venv\data_browser\lib\site-
packages\django\db\models\sql\compiler.py:1100: in apply_converters
value = converter(value, expression, connection)
..\..\.venv\data_browser\lib\site-
packages\django\db\models\fields\json.py:79: in from_db_value
return json.loads(value, cls=self.decoder)
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/32203#comment:1>
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