JSON schema draft 2020-12 support

[ncn-mw]

Is your feature request related to a problem? Please describe.

Schemas with draft 2020-12 do not work, JSON forms just throws an error saying the schema does not exist. 2020-12 is the version Zod automatically generates (but can be changed via setting)

Describe the solution you'd like

Support for version 2020-12 would be nice as this is the up-to-date spec

Describe alternatives you've considered

Using older version works fine but there might be new features one would like to use

Package

No response

Additional context

This is technically a duplicate of #2043 but that has been closed without an answer

[sdirix]

We do not support the more advanced features but a basic 2020-12 schema should work just fine. However you will need to remove the $schema keyword because the default AJV will trip over the 2020-12 schema definition.

Alternatively if you require the 2020-12 features for validation you can hand in a custom AJV for JSON Forms to use, e.g.

import Ajv from 'ajv/dist/2020';
import addFormats from 'ajv-formats';
const ajv = new Ajv({
  allErrors: true,
  verbose: true,
  strict: false,
  addUsedSchema: false,
});
addFormats(ajv);

// then hand it over when invoking JSON Forms

<JsonForms ajv={ajv} />