Function createOrdinals

docs/app/js/sanddance-app.js:4656–4689

(source, prefix, binFields, sortOrder)

var _constants = require("./constants");
var _expr = require("./expr");
function createOrdinals(source, prefix, binFields, sortOrder) {
    const _binFields = binFields.map((0, _expr.safeFieldName));
    const dataName = `${prefix}_bin_order`;
    const data = {
        name: dataName,
        source,
        transform: [
            {
                type: "aggregate",
                groupby: _binFields
            },
            {
                type: "collect",
                sort: {
                    field: _binFields,
                    order: _binFields.map((f)=>sortOrder)
                }
            },
            {
                type: "window",
                ops: [
                    "row_number"
                ],
                as: [
                    (0, _constants.FieldNames).Ordinal
                ]
            }
        ]
    };
    return {
        data,
        scale: ordinalScale(dataName, `scale_${prefix}_order`, binFields)
    };
}
function ordinalScale(dataName, scaleName, binFields) {
    return {
        type: "ordinal",