$ref and fetching tree node from external source

[desertkun]

Apparently, there were no way to fetch some part of external schema with $ref. This pull request fixes this commit.

{
    "$ref": "http://example.com/path/schema.json#/node_a/subnode_b"
}

Also, this commit allows enumSource to use $ref:

{
    "type": "string",
    "enumSource": [{
        "source": {
            "$ref": "http://example.com/path/schema.json#/items"
        },
        "value": "{{item.id}}",
        "title": "Item <{{item.id}}>"
     }],
}

[desertkun]

Fixes this issue #697

[joel-dixon]

That's a great fix! Seems like there are some holes in handling $ref. Question: does your fork also handle relative $refs? I saw issue #544 which is having the same problem I'm having, but it hasn't been fixed.

[desertkun]

Unfortunately, it does not. It just pulls https://example.com/schema.json if

"$ref": "https://example.com/schema.json#/subnode"

is mentioned, and then iterates over tree to return subnode. But I can agree, $ref functionality has bad support.

[coderofsalvation]

can somebody please merge this? I need this :)