No relationship between deleted cable terminations and the devices they were connected to?

[Omega5109]

Hi everyone, I need to replace a cable (+ its terminations) from only data stored in the changelog. My problem is that the actual device the cable was connected to does not seem to be correlated anymore, which is vital in a network full of devices with interfaces named “xe-0/0/0” and the like.

Since the original items were deleted, I understandably cannot access them in the API anymore, with the only reference existing in the changelog. Am I missing something? How could I actually use these entries without knowing the device they came from?

Here is the JSON response from the deletion event of a cable in the changelog:

{
  "id": 41537,
  "url": "https://<redacted but correct>/api/extras/object-changes/41537/",
  "display": "dcim | cable #226 deleted by admin",
  "time": "2024-07-22T09:21:42.747084-05:00",
  "user": {
    "id": 19,
    "url": "https://<redacted but correct>/api/users/users/19/",
    "display": "admin (Admin user)",
    "username": "admin"
  },
  "user_name": "admin",
  "request_id": "964213aa-f4ab-40aa-8ca4-afd7d4a9f926",
  "action": {
    "value": "delete",
    "label": "Deleted"
  },
  "changed_object_type": "dcim.cable",
  "changed_object_id": 226,
  "changed_object": null,
  "prechange_data": {
    "tags": [],
    "type": "smf",
    "color": "",
    "label": "",
    "length": null,
    "status": "connected",
    "tenant": null,
    "created": "2024-01-03T20:01:33.573Z",
    "comments": "",
    "description": "",
    "length_unit": "",
    "custom_fields": {}
  },
  "postchange_data": null
}

And this is for one of the related terminations (B side):

{
  "id": 41536,
  "url": "https://<redacted but correct>/api/extras/object-changes/41536/",
  "display": "dcim | cable termination Cable #226 to xe-0/0/0:3 deleted by admin",
  "time": "2024-07-22T09:21:42.738595-05:00",
  "user": {
    "id": 19,
    "url": "https://<redacted but correct>/api/users/users/19/",
    "display": "admin (Admin user)",
    "username": "admin"
  },
  "user_name": "admin",
  "request_id": "964213aa-f4ab-40aa-8ca4-afd7d4a9f926",
  "action": {
    "value": "delete",
    "label": "Deleted"
  },
  "changed_object_type": "dcim.cabletermination",
  "changed_object_id": 539,
  "changed_object": null,
  "prechange_data": {
    "cable": 226,
    "created": "2024-01-03T20:01:33.629Z",
    "cable_end": "B",
    "termination_id": 626,
    "termination_type": 5
  },
  "postchange_data": null
}

And for reference, here is the output from an active (unrelated) cable. Notice how it is fully populated information about the device it was connected to:

{
  "id": 227,
  "url": "https://<redacted but correct>/api/dcim/cables/227/",
  "display": "#227",
  "type": "smf",
  "a_terminations": [
    {
      "object_type": "dcim.rearport",
      "object_id": 813,
      "object": {
        "id": 813,
        "url": "https://<redacted but correct>/api/dcim/rear-ports/813/",
        "display": "A2.1 Back (MPO)",
        "device": {
          "id": 3160,
          "url": "https://<redacted but correct>/api/dcim/devices/3160/",
          "display": "<redacted but correct>",
          "name": "<redacted but correct>"
        },
        "name": "A2.1 Back (MPO)",
        "cable": 227,
        "_occupied": true
      }
    }
  ],
  "b_terminations": [
    {
      "object_type": "dcim.interface",
      "object_id": 627,
      "object": {
        "id": 627,
        "url": "https://<redacted but correct>/api/dcim/interfaces/627/",
        "display": "xe-0/0/1:0",
        "device": {
          "id": 1930,
          "url": "https://<redacted but correct>/api/dcim/devices/1930/",
          "display": "<redacted but correct>",
          "name": "<redacted but correct>"
        },
        "name": "xe-0/0/1:0",
        "cable": 227,
        "_occupied": true
      }
    }
  ],
  "status": {
    "value": "connected",
    "label": "Connected"
  },
  "tenant": null,
  "label": "",
  "color": "",
  "length": null,
  "length_unit": null,
  "description": "",
  "comments": "",
  "tags": [],
  "custom_fields": {},
  "created": "2024-01-03T14:02:13.235865-06:00",
  "last_updated": "2024-01-03T14:02:13.235889-06:00"
}

Cross-posted in Slack as well