extjs-gpl/examples/kitchensink/classic/samples/model/Tree.js

GPL licensed version of Sencha Ext JS

Ext.define('KitchenSink.model.Tree', {
    extend: 'Ext.data.TreeModel',

    fields: [
        'name',
        'path',
        'size',
        {
            name: 'leaf',
            calculate: function (data) {
                return data.root ? false : !data.children;
            }
        },
        {
            name: 'text',
            calculate: function (data) {
                return data.name;
            }
        }
    ],

    proxy: {
        type: 'ajax',
        url: 'data/tree/tree.json'
    },

    idProperty: 'path'

});