enum values in schema.json vs schema.ui.json

[stefan-korn]

User Story

You can have enum values for a schema property in {schema}.json as well as in {schema}.ui.json.

If you use enum values in {schema}.json with property type "string" a select field containing the enum values will be generated.

If you use enum values in {schema}.ui.json (within ui:options -> source) these options will be used for generating a select field if you choose the widget to be "list" in {schema}.ui.json as well.

This is a bit confusing imho and you might need to move the enum values from {schema}.json to {schema}.ui.json or vice versa if you choose another handling for the given property.

For example you configured a string property with enum values in the {schema}.json to generate a select list. Then you decide to rather have a "select or other" select list. You would then need to move (or duplicate) the enum values from {schema}.json to {schema}.ui.json which feels complicated and error prone.

My proposal would be to use the enum values from {schema}.json if there are no enum values defined in {schema}.ui.json. This would allow to have all the enum values in {schema}.json, but still be able to use the enum configuration via {schema}.ui.json if someone prefers/needs this (and be compatible with current default {schema}.ui.json definitions).

Btw: I am not exactly sure why the enum configuration via {schema}.ui.json was chosen in the first place. Maybe this isn't even necessary if the enum values from {schema}.json will be used.

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