Group values in a source table

Show several checks without spreading their results across a wide table.

What the labeler sees

Captured from this recipe’s downloadable configuration and sample data. Select image to enlarge.

Try this example: download the complete configuration and sample CSV. Open the configuration in MLabel, then load the CSV.

View the complete configuration

{
  "$schema": "https://mlabel.vlad.gg/mlabel.schema.json",
  "version": 2,
  "network": {
    "updateChecks": false,
  },
  "input": {
    "fields": [
      {
        "name": "checks",
        "type": "array",
        "display": {
          "title": "Delivery checks",
          "titlePosition": "above",
        },
        "items": {
          "type": "object",
          "fields": [
            {
              "name": "name",
              "type": "text",
              "display": "Check",
            },
            {
              "name": "passed",
              "type": "boolean",
              "display": "Passed",
            },
            {
              "name": "confidence",
              "type": "number",
              "display": "Confidence",
            },
          ],
          "table": {
            "columns": [
              {
                "name": "Check",
                "use": ["name"],
              },
              {
                "name": "Result",
                "use": ["passed", "confidence"],
                "layout": "inline",
              },
            ],
          },
        },
      },
    ],
  },
  "output": {
    "fields": [
      {
        "name": "verdict",
        "type": "enum",
        "widget": "radio",
        "display": "Review decision",
        "choices": [
          {
            "name": "pass",
            "display": "Pass",
          },
          {
            "name": "fail",
            "display": "Fail",
          },
        ],
      },
    ],
  },
}

View the sample CSV

checks
"[{""name"":""Arrived on time"",""passed"":false,""confidence"":0.95},{""name"":""Package intact"",""passed"":false,""confidence"":0.9},{""name"":""Contents complete"",""passed"":true,""confidence"":0.8}]"

Configure it

Declare an input array whose items are objects. Each object becomes a row. Inside the item definition, table.columns chooses the columns and their contents.

The Result column puts passed and confidence together using layout: "inline". Use stack for one value per line or chips for separately outlined values. use names members of the object, such as passed, not top-level CSV columns.

The relevant setting is in input.fields.0. The download above includes the surrounding configuration.

{
  "name": "checks",
  "type": "array",
  "display": {
    "title": "Delivery checks",
    "titlePosition": "above",
  },
  "items": {
    "type": "object",
    "fields": [
      {
        "name": "name",
        "type": "text",
        "display": "Check",
      },
      {
        "name": "passed",
        "type": "boolean",
        "display": "Passed",
      },
      {
        "name": "confidence",
        "type": "number",
        "display": "Confidence",
      },
    ],
    "table": {
      "columns": [
        {
          "name": "Check",
          "use": ["name"],
        },
        {
          "name": "Result",
          "use": ["passed", "confidence"],
          "layout": "inline",
        },
      ],
    },
  },
}

Try it and check the result

Load the sample and confirm that three checks appear as three table rows. The checks CSV cell holds a JSON array; use the downloadable CSV as a quoting example.

This table is read-only. Labelers answer the separate review decision; they do not edit the checks. Add an output field with a matching type and fill: { "kind": "copy" } if the checks must also be retained in the output.

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