问Lawnchair.js未更新数据

EN

var LocalStore = function(name) {
    var that = this;
    that.name = name;

    that.lawnchair = Lawnchair({ name: that.name }, function(store) {
        this.before('save', function(record){
            console.log("saving " + that.name);
            console.log(record);
        });

        this.after('save', function(record){
            console.log("saved " + that.name);
            console.log(record);
            that.getData(function(records){
                console.log("now it's this");
                console.log(records);
            });
        });
    });

    that.getData = function(callback) {
        that.lawnchair.get(that.name, callback);
    };
};

save: function(collection, callback) {
        this.lawnchair.save({ key:this.name, value: collection }, function(record) {
            callback(record);
        });
    }