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Fixed #30190 -- Added JSONL serializer.

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Ali Vakilzade 2020-06-16 15:51:58 +01:00 • committed by GitHub
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docs/topics/serialization.txt
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@ -160,11 +160,14 @@ Identifier Information
``json`` Serializes to and from JSON_.
``jsonl`` Serializes to and from JSONL_.
``yaml`` Serializes to YAML (YAML Ain't a Markup Language). This
serializer is only available if PyYAML_ is installed.
========== ==============================================================
.. _json: https://json.org/
.. _jsonl: http://jsonlines.org/
.. _PyYAML: https://pyyaml.org/
XML
@ -307,6 +310,24 @@ The JSON serializer uses ``DjangoJSONEncoder`` for encoding. A subclass of
.. _ecma-262: https://www.ecma-international.org/ecma-262/5.1/#sec-15.9.1.15
.. _serialization-formats-jsonl:
JSONL
-----
.. versionadded:: 3.2
*JSONL* stands for *JSON Lines*. With this format, objects are separated by new
lines, and each line contains a valid JSON object. JSONL serialized data look
like this::
{ "pk": "4b678b301dfd8a4e0dad910de3ae245b", "model": "sessions.session", "fields": { ... }}
{ "pk": "88bea72c02274f3c9bf1cb2bb8cee4fc", "model": "sessions.session", "fields": { ... }}
{ "pk": "9cf0e26691b64147a67e2a9f06ad7a53", "model": "sessions.session", "fields": { ... }}
JSONL can be useful for populating large databases, since the data can be
processed line by line, rather than being loaded into memory all at once.
YAML
----