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@@ -2,6 +2,57 @@
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* Created by jiachenpan on 16/11/18.
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*/
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+/**
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+ * 构造树型结构数据
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+ * @param {*} data 数据源
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+ * @param {*} id id字段 默认 'id'
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+ * @param {*} parentId 父节点字段 默认 'parentId'
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+ * @param {*} children 孩子节点字段 默认 'children'
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+ */
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+export function handleTree(data, id, parentId, children) {
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+ let config = {
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+ id: id || 'id',
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+ parentId: parentId || 'parentId',
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+ childrenList: children || 'children'
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+ };
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+
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+ var childrenListMap = {};
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+ var nodeIds = {};
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+ var tree = [];
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+
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+ for (let d of data) {
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+ let parentId = d[config.parentId];
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+ if (childrenListMap[parentId] == null) {
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+ childrenListMap[parentId] = [];
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+ }
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+ nodeIds[d[config.id]] = d;
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+ childrenListMap[parentId].push(d);
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+ }
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+
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+ for (let d of data) {
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+ let parentId = d[config.parentId];
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+ if (nodeIds[parentId] == null) {
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+ tree.push(d);
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+ }
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+ }
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+
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+ for (let t of tree) {
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+ adaptToChildrenList(t);
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+ }
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+
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+ function adaptToChildrenList(o) {
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+ if (childrenListMap[o[config.id]] !== null) {
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+ o[config.childrenList] = childrenListMap[o[config.id]];
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+ }
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+ if (o[config.childrenList]) {
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+ for (let c of o[config.childrenList]) {
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+ adaptToChildrenList(c);
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+ }
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+ }
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+ }
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+ return tree;
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+}
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+
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export function parseTime(time, cFormat) {
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if (arguments.length === 0) {
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return null
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