src/main/resources/static/ajax/libs/bootstrap-table/extensions/bootstrap-table-treegrid.js

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/**
 * @author: YL
 * @version: v1.0.0
 */
!function ($) {
    'use strict';
    $.extend($.fn.bootstrapTable.defaults, {
        treeShowField: null,
        idField: 'id',
        parentIdField: 'pid',
        onGetNodes: function (row, data) {
            var that = this;
            var nodes = [];
            $.each(data, function (i, item) {
                if (row[that.options.idField] === item[that.options.parentIdField]) {
                    nodes.push(item);
                }
            });
            return nodes;
        },
        onCheckRoot: function (row, data) {
            var that = this;
            return !row[that.options.parentIdField];
        }
    });

    var BootstrapTable = $.fn.bootstrapTable.Constructor,
        _init = BootstrapTable.prototype.init,
        _initRow = BootstrapTable.prototype.initRow,
        _initHeader = BootstrapTable.prototype.initHeader,
        _rowStyle = null;

    BootstrapTable.prototype.init = function () {
        _rowStyle = this.options.rowStyle;
        _init.apply(this, Array.prototype.slice.apply(arguments));
    };

    // td
    BootstrapTable.prototype.initHeader = function () {
        var that = this;
        _initHeader.apply(that, Array.prototype.slice.apply(arguments));
        var treeShowField = that.options.treeShowField;
        if (treeShowField) {
            $.each(this.header.fields, function (i, field) {
                if (treeShowField === field) {
                    that.treeEnable = true;
                    return false;
                }
            });
        }
    };

    var initTr = function (item, idx, data, parentDom) {
        var that = this;
        var nodes = that.options.onGetNodes.apply(that, [item, data]);
        item._nodes = nodes;
        parentDom.append(_initRow.apply(that, [item, idx, data, parentDom]));

        // init sub node
        var len = nodes.length - 1;