#29318: ValidationError has no attribute `error_list` if message is a dict, but
Field.run_validators() depends on it
     Reporter:  Michael Käufl  |                    Owner:  nobody
         Type:  Bug            |                   Status:  new
    Component:  Core (Other)   |                  Version:  master
     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

Comment (by Simon Charette):

 I think that `Field.run_validators()` should not to handle `dict` based
 `ValidationError` as they should only be used to map concrete fields to
 errors in multi-fields cleaning functions (e.g. `Form.clean()`,
 `Model.clean()`). Since `Field` instances cannot have nested-fields I
 wouldn't expect `dict` to be handled.

 In your `JSONField` subclass example you're using an invalid `key` as your
 field mapping. This `key` doesn't map to any field and raising
 `ValidationError(f'Key {key} not allowed.')` within the field would be
 more appropriate.

 Keep in mind that errors have to be ultimately flattened to a `{field_name
 -> error_list}` map at the form/model level while a different model is
 used for DRF serializers since they have nested fields.

Ticket URL: <https://code.djangoproject.com/ticket/29318#comment:3>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

You received this message because you are subscribed to the Google Groups 
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to django-updates+unsubscr...@googlegroups.com.
To post to this group, send email to django-updates@googlegroups.com.
To view this discussion on the web visit 
For more options, visit https://groups.google.com/d/optout.

Reply via email to