JohanVandeplas

Ext.override(Ext.data.proxy.Server, {
    encodeSorters: function (sorters, string) {
        var model = this.model,
            map = model.prototype.fields.map,
            encSort = Ext.Array.map(sorters, function (sorter) {
                return {
                    property : map[sorter.property].sorting || map[sorter.property].mapping || sorter.property,
                    direction: sorter.direction
                };
            });

JohanVandeplas

{
    "message": "",
    "total": 1,
    "success": true,
    "rows": [
        {
            "lab_visit_id": "22",
            "upddate": "02 Feb 2012 14:25:33",
            "lab_id": "22",
            "visit_date": "16 Nov 2009",

JohanVandeplas

/**
 * @class Ext.data.NodeInterface
 * This class is meant to be used as a set of methods that are applied to the prototype of a
 * Record to decorate it with a Node API. This means that models used in conjunction with a tree
 * will have all of the tree related methods available on the model. In general this class will
 * not be used directly by the developer. This class also creates extra fields on the model if
 * they do not exist, to help maintain the tree state and UI. These fields are:
 * <ul>
 * <li>parentId</li>
 * <li>index</li>