recycle-front/unpackage/dist/dev/mp-weixin/utils/tree.js

"use strict";
function handleTree(data, id, parentId, children) {
  let config = {
    id: id || "id",
    parentId: parentId || "parentId",
    childrenList: children || "children"
  };
  var childrenListMap = {};
  var nodeIds = {};
  var tree = [];
  for (let d of data) {
    let parentId2 = d[config.parentId];
    if (childrenListMap[parentId2] == null) {
      childrenListMap[parentId2] = [];
    }
    nodeIds[d[config.id]] = d;
    childrenListMap[parentId2].push(d);
  }
  for (let d of data) {
    let parentId2 = d[config.parentId];
    if (nodeIds[parentId2] == null) {
      tree.push(d);
    }
  }
  for (let t of tree) {
    adaptToChildrenList(t);
  }
  function adaptToChildrenList(o) {
    if (childrenListMap[o[config.id]] !== null) {
      o[config.childrenList] = childrenListMap[o[config.id]];
    }
    if (o[config.childrenList]) {
      for (let c of o[config.childrenList]) {
        adaptToChildrenList(c);
      }
    }
  }
  return tree;
}
exports.handleTree = handleTree;
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