Validating subtree against YANG model

[stewa02]

With from_raw() can a data-instance of a YANG model be loaded. In our specific instance we load a data instance of the "ietf-interfaces" model from an IOS-XE device over RESTCONF (https:///restconf/data/ietf-interfaces:interfaces/), like the one below. This works perfectly.

        {
          "ietf-interfaces:interfaces": {
            "interface": [
              {
                "name": "GigabitEthernet1",
                "type": "iana-if-type:ethernetCsmacd",
                "enabled": true,
                "ietf-ip:ipv4": {
                  "address": [
                    {
                      "ip": "192.168.0.40",
                      "netmask": "255.255.255.0"
                    }
                  ]
                },
                "ietf-ip:ipv6": {
                }
              },
              {
                "name": "GigabitEthernet2",
                "type": "iana-if-type:ethernetCsmacd",
                "enabled": false,
                "ietf-ip:ipv4": {
                },
                "ietf-ip:ipv6": {
                }
              }
            ]
          }
        }

When the request is specified to only return one interface from the list (e.g. https:///restconf/data/ietf-interfaces:interfaces/interface=GigabitEthernet1), the returned JSON representation looks like the second one below:

        {
          "ietf-interfaces:interface": {
            "name": "GigabitEthernet1",
            "type": "iana-if-type:ethernetCsmacd",
            "enabled": true,
            "ietf-ip:ipv4": {
              "address": [
                {
                  "ip": "192.168.0.40",
                  "netmask": "255.255.255.0"
                }
              ]
            },
            "ietf-ip:ipv6": {
            }
          }
        }

If this instance is loaded, an exception is thrown: Illegal object member: /ietf-interfaces:interface. As far as I have seen from the documentation, no such filtered models are loaded. Is this not an intended use-case, a bug, or am I overlooking something?

[llhotka]

I assume what you do is something like this:

dm.from_raw(inst)

where the data model dm contains the ietf-interfaces module. This won't work because the schema prescribes ietf-interfaces:interfaces at the top.