powerbi-visuals-utils-dataviewutils/lib/dataRoleHelper.js

dataviewutils

export function getMeasureIndexOfRole(grouped, roleName) {
    if (!grouped || !grouped.length) {
        return -1;
    }
    const firstGroup = grouped[0];
    if (firstGroup.values && firstGroup.values.length > 0) {
        for (let i = 0, len = firstGroup.values.length; i < len; ++i) {
            const value = firstGroup.values[i];
            if (value && value.source) {
                if (hasRole(value.source, roleName)) {
                    return i;
                }
            }
        }
    }
    return -1;
}
export function getCategoryIndexOfRole(categories, roleName) {
    if (categories && categories.length) {
        for (let i = 0, ilen = categories.length; i < ilen; i++) {
            if (hasRole(categories[i].source, roleName)) {
                return i;
            }
        }
    }
    return -1;
}
export function hasRole(column, name) {
    const roles = column.roles;
    return roles && roles[name];
}
export function hasRoleInDataView(dataView, name) {
    return dataView != null
        && dataView.metadata != null
        && dataView.metadata.columns
        && dataView.metadata.columns.some((c) => c.roles && c.roles[name] !== undefined); // any is an alias of some
}
export function hasRoleInValueColumn(valueColumn, name) {
    return valueColumn
        && valueColumn.source
        && valueColumn.source.roles
        && (valueColumn.source.roles[name] === true);
}
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