terriajs/lib/Models/getAncestors.js

Geospatial data visualization platform.

'use strict';

var defined = require('terriajs-cesium/Source/Core/defined');

/**
 * Return the ancestors in the data catalog of the given catalog member, recursively using "member.parent".
 * The "Root Group" is not included.
 *
 * @param  {CatalogMember} member The catalog member.
 * @return {CatalogMember[]} The members' ancestors in its parent tree, starting at the top, not including this member.
 */
function getAncestors(member) {
	var parent = member.parent;
	var ancestors = [];
    while (defined(parent) && defined(parent.parent)) {
        ancestors = [parent].concat(ancestors);
        parent = parent.parent;
    }
    return ancestors;
}

module.exports = getAncestors;