如何在CloudKit JS中查询元数据？ [英] How to query for Metadata in CloudKit JS?

问题描述

我已经弄清楚如何查询某些元数据，例如在我的查询中调用它：

 < td>+ record ['created']。value +< / td> <  - 填充一些表格数据
  

但这会回来 undefined 让我感到困惑，因为CloudKit仪表板具有Created By的值（作为使用每条记录创建的自动元数据的一部分。）

如何查询ID / UUID以及以HTML / JS可读方式获取响应？

解决方案

使用CloudKit获取一个或多个记录后。你会注意到你得到一个看起来像这样的对象：

  {
recordName：6E863D3D -5371-4376-A9BA-3B294F480E4E，
recordType：消息，
字段：{
text：{
value：hi ，
类型：STRING
}，
}，
recordChangeTag：ib461v1s，
已创建：{
 timestamp：1434751588720，
userRecordName：_ 36ed4b61e7a11c9302f851fe25a9b911，
deviceID：_ 2
}，
已修改：{
timestamp：1434751588720，
userRecordName：_ 36ed4b61e7a11c9302f851fe25a9b911，
deviceID：_ 2
 } 
} 
  

recordName 是记录的唯一标识符，Object具有创建的属性，该属性指向具有时间戳字段的对象。 / p>

I've figured out how to query for some metadata for example calling this in my query:

<td>" + record['created'].value + "</td> <-- populates some table data

But this comes back undefined which confuses me because the CloudKit dashboard has a value for Created By (as part of the automatic Metadata that is created with each record.)

How do I query for the ID/UUID as well as get the response in a HTML/JS-readable manner?

解决方案

After fetching one or more records with CloudKit.js you'll notice you get back an Object that looks like this:

{
    "recordName": "6E863D3D-5371-4376-A9BA-3B294F480E4E",
    "recordType": "Message",
    "fields": {
        "text": {
            "value": "hi",
            "type": "STRING"
        },
    },
    "recordChangeTag": "ib461v1s",
    "created": {
        "timestamp": 1434751588720,
        "userRecordName": "_36ed4b61e7a11c9302f851fe25a9b911",
        "deviceID": "_2"
    },
    "modified": {
        "timestamp": 1434751588720,
        "userRecordName": "_36ed4b61e7a11c9302f851fe25a9b911",
        "deviceID": "_2"
    }
}

The recordName is a record's unique identifier, and the Object has a created attribute which points to an Object with a timestamp field.

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