JayData:如何将代码从v1.3迁移到v1.5 [英] JayData : how to migrate code from v1.3 to v1.5

问题描述

我有一些可以在JayData 1.3中工作的代码.

I have some code which worked in JayData 1.3.

由于1.3版与Polymer的兼容性问题，我需要将JayData升级到1.5版.

I need to upgrade JayData to 1.5 due to the compatibility issues the 1.3 version has with polymer.

升级说明说，您可以使用"jaydata-compatibility.js"脚本来将您的应用程序逐步从以前的版本升级到JayData 1.5.x"，但是当我按照说明添加该应用程序时，我只是得到了错误" typeOrName requires a value other than undefined or null "，而实际上并没有完全无法帮助我完成升级.

The upgrade instructions say you can use the "jaydata-compatibility.js" script to "upgrade your app to JayData 1.5.x from previous versions step-by-step", however when I add that in as described I simply get the error, "typeOrName requires a value other than undefined or null", which actually doesn't help me step through the upgrade at all.

$data.Entity.extend('Cache', {
    'id': { 'type': 'int', 'key': true, 'computed': true },
    'url': { 'type': 'string' },              
    'method': { 'type': 'string', 'required': true },   
    'dts': { 'type': 'string', 'required': true },    
    'encryptMeth': { 'type': 'string' },  
    'data': { 'type': 'string' }
});

$data.EntityContext.extend('APIWrapperDB', {
    'Cache': { 'type': $data.EntitySet, 'elementType': Cache }
});

var cacheDatabase = new APIWrapperDB('TheAPIWrapperDatabase');

cacheDatabase.onReady( function() { /* now my DB is ready */ };

此代码的JayData 1.5等价物是什么?

推荐答案

这是更新的代码段，由于JayData停止使用全局对象，因此我刚刚将您的实体定义声明为变量.

This is the updated snippet, I've just declared your entity definitions as variables as JayData stopped using global objects.

var Cache = data.Entity.extend('Cache', {
    'id': { 'type': 'int', 'key': true, 'computed': true },
    'url': { 'type': 'string' },              
    'method': { 'type': 'string', 'required': true },   
    'dts': { 'type': 'string', 'required': true },    
    'encryptMeth': { 'type': 'string' },  
    'data': { 'type': 'string' }
});

var APIWrapperDB = $data.EntityContext.extend('APIWrapperDB', {
    'Cache': { 'type': $data.EntitySet, 'elementType': Cache }
});

var cacheDatabase = new APIWrapperDB('TheAPIWrapperDatabase');

cacheDatabase.onReady( function() { /* now my DB is ready */ };

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