When a node has a ui schema, and when it has none
The ui schema is what turns a flat config form into grouped sections. Whether there is one at all is decided by a single question about the final schema.
The rule
Normative: this is the rule
- The ui schema is generated from the final config schema, after every reserved property has been injected.
- It is null exactly when no property carries a registered group: a property tagged with an unregistered group falls into the default bucket, so a schema tagged only with unregistered groups also yields null, and the form stays on its flat path.
- Groups are collapsed by default; a group is opened for a node instance where that instance sets one of the fields in it.
Rule identifiers are permanent and are never renumbered. Each implementation publishes its own standing against these rules; this specification does not.spec 1.0-draft · SCH-23 · changed in spec 1.0