Proposal: new keyword uniqueValues

[SorinGFS]

There is a situation where array of objects may conflict if some items has properties with identical values. E.g.,

[
    {"name": "John"},
    {"name": "John"}
]

This could be invalidated by a keyword like uniqueValues which should be an array containing the property names which should be checked to contain unique values.

[gregsdennis]

I have this defined as a vocabulary already: https://docs.json-everything.net/schema/vocabs/uniquekeys/

[SorinGFS]

Your keyword has a specific use case. What I mean is different, let me be more specific. Let's consider the following schema portion:

   "type": "array",
   "items": {
        "type": "object",
        "properties": {
            "email": { "type": "string" },
            "foo": { "type": "string" }
        },
        "uniqueValues": [ "email" ],
        "required": [ "email" ]
    }

The above schema would validate:

[
    { "email": "[email protected]", "foo": "bar" },
    { "email": "[email protected]", "foo": "bar" }
]

...and would invalidate:

[
    { "email": "[email protected]", "foo": "bar" },
    { "email": "[email protected]", "foo": "baz" }
]

[gregsdennis]

That's exactly what my vocab does.

[SorinGFS]

Indeed. I was initially confused by that kind of unintuitive referring to the key by its json-pointer.

[gregsdennis]

Duplicate of json-schema-org/json-schema-vocabularies#22