Subversion Repositories Applications.papyrus

/*
        Copyright (c) 2004-2006, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.data.old.format.Json");
dojo.require("dojo.lang.assert");
dojo.data.old.format.Json = new function () {
        this.loadDataProviderFromFileContents = function (dataProvider, jsonFileContents) {
                dojo.lang.assertType(dataProvider, dojo.data.old.provider.Base);
                dojo.lang.assertType(jsonFileContents, String);
                var arrayOfJsonData = eval("(" + jsonFileContents + ")");
                this.loadDataProviderFromArrayOfJsonData(dataProvider, arrayOfJsonData);
        };
        this.loadDataProviderFromArrayOfJsonData = function (dataProvider, arrayOfJsonData) {
                dojo.lang.assertType(arrayOfJsonData, Array, {optional:true});
                if (arrayOfJsonData && (arrayOfJsonData.length > 0)) {
                        var firstRow = arrayOfJsonData[0];
                        dojo.lang.assertType(firstRow, [Array, "pureobject"]);
                        if (dojo.lang.isArray(firstRow)) {
                                _loadDataProviderFromArrayOfArrays(dataProvider, arrayOfJsonData);
                        } else {
                                dojo.lang.assertType(firstRow, "pureobject");
                                _loadDataProviderFromArrayOfObjects(dataProvider, arrayOfJsonData);
                        }
                }
        };
        this.getJsonStringFromResultSet = function (resultSet) {
                dojo.unimplemented("dojo.data.old.format.Json.getJsonStringFromResultSet");
                var jsonString = null;
                return jsonString;
        };
        function _loadDataProviderFromArrayOfArrays(dataProvider, arrayOfJsonData) {
                var arrayOfKeys = arrayOfJsonData[0];
                for (var i = 1; i < arrayOfJsonData.length; ++i) {
                        var row = arrayOfJsonData[i];
                        var item = dataProvider.getNewItemToLoad();
                        for (var j in row) {
                                var value = row[j];
                                var key = arrayOfKeys[j];
                                item.load(key, value);
                        }
                }
        }
        function _loadDataProviderFromArrayOfObjects(dataProvider, arrayOfJsonData) {
                for (var i in arrayOfJsonData) {
                        var row = arrayOfJsonData[i];
                        var item = dataProvider.getNewItemToLoad();
                        for (var key in row) {
                                var value = row[key];
                                if (dojo.lang.isArray(value)) {
                                        var arrayOfValues = value;
                                        for (var j in arrayOfValues) {
                                                value = arrayOfValues[j];
                                                item.load(key, value);
                                        }
                                } else {
                                        item.load(key, value);
                                }
                        }
                }
        }
}();