Modify JSON Validation for Optgroup support

Hello, I’ve successfully created the widget to support optgroup select (i.e. categories inside a select). I’m now seeking help for the validation.

In order to generate the categories I give a dict instead of a list to my “enum” field. How can I modify the JSON validation to avoid the error .enum should be array

Here is the codepen of my implementation:
https://codepen.io/enola-guy/pen/ZEQOVEN

If you can explain me the steps missing, I would gladly open a PR in order to make this feature in the main branch 😃

[epicfaace]

@Enola-guy thanks for your custom widget! I don’t think we can merge this into the main library, though, until we have a JSON Schema-compliant approach (and in JSON Schema, enum must be an array, not a dict). Can you think of a JSON-schema-compliant way of using optgroups? For example, this might involve customizing the optgroups in uiSchema using something like this:

{
    "ui:groups": [
         { "title": "Theropods", "items": ["Tyrannosaurus", "Velociraptor"] },
         ...
     ]
}

This is just an idea – let me know if you have any other thoughts / ways of doing this.

[vladyslavarkavenko]

@Enola-guy Can you please share your working code here?