betajs/betajs-data

Scoped.define("module:Stores.KeyMapStore", ["module:Stores.TransformationStore", "base:Objs"], function (TransformationStore, Objs, scoped) {
    return TransformationStore.extend({scoped: scoped}, function (inherited) {            
        return {
            
            constructor: function (store, options, map) {
                inherited.constructor.call(this, store, options);
                this.__encodeMap = map;
                this.__decodeMap = Objs.inverseKeyValue(map);
            },
            
            __mapBy: function (data, map) {
                var result = {};
                Objs.iter(data, function (value, key) {
                    result[map[key] || key] = value;
                });
                return result;
            },
            
            _encodeData: function (data) {
                return this.__mapBy(data, this.__encodeMap);
            },
            
            _decodeData: function (data) {
                return this.__mapBy(data, this.__decodeMap);
            }

        };
    });
});