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Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/contrib/postgres/fields.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/ref/contrib/postgres/fields.txt b/docs/ref/contrib/postgres/fields.txt index f5c98929b7..cb6f15acc5 100644 --- a/docs/ref/contrib/postgres/fields.txt +++ b/docs/ref/contrib/postgres/fields.txt @@ -467,6 +467,12 @@ JSONField its Python native format: dictionaries, lists, strings, numbers, booleans and ``None``. + If you want to store other data types, you'll need to serialize them first. + For example, you might cast a ``datetime`` to a string. You might also want + to convert the string back to a ``datetime`` when you retrieve the data + from the database. There are some third-party ``JSONField`` implementations + which do this sort of thing automatically. + If you give the field a :attr:`~django.db.models.Field.default`, ensure it's a callable such as ``dict`` (for an empty default) or a callable that returns a dict (such as a function). Incorrectly using ``default={}`` |