dtable-utils/lib/view/group.js

dtable common utils

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

/**
 * Get group by paths
 * @param {array} paths e.g. [ 0, 1, 2 ]
 * @param {array} groups grouped rows
 * @returns group, object
 */
var getGroupByPath = function getGroupByPath(paths, groups) {
  if (!Array.isArray(paths) || !Array.isArray(groups)) {
    return null;
  }
  var level0GroupIndex = paths[0];
  if (level0GroupIndex < 0 || level0GroupIndex >= groups.length) {
    return null;
  }
  var level = 1;
  var foundGroup = groups[level0GroupIndex];
  while (level < paths.length) {
    if (!foundGroup) {
      break;
    }
    var subGroups = foundGroup.subgroups;
    var currentLevelGroupIndex = paths[level];
    if (!Array.isArray(subGroups) || currentLevelGroupIndex < 0 || currentLevelGroupIndex >= subGroups.length) {
      break;
    }
    foundGroup = subGroups[currentLevelGroupIndex];
    level += 1;
  }
  return foundGroup;
};

exports.getGroupByPath = getGroupByPath;