Azure 表存储 - 保存正在工作,但正在检索数据 - 无法获取记录中的所有字段

发布于 2025-01-09 18:24:34 字数 3855 浏览 0 评论 0原文

我有以下类代表存储表中的记录:

using Newtonsoft.Json;
using Azure.Data.Tables;
using System;
using Azure;

namespace MyProject.Models
{
    public class ProvisioningRecord:ITableEntity
  {
    public string PartitionKey { get; set;}
    public string RowKey { get; set; }
    public DateTimeOffset? Timestamp { get; set; }
    public ETag ETag {get;set; }

    [JsonProperty(PropertyName = "requestId")]
     public string requestId { get; set; }

    [JsonProperty(PropertyName = "status")]
    public string status { get; set; }

    [JsonProperty(PropertyName = "request")]
    public WorkspaceRequest workspace { get; set; }
  }
  
}

这就是 WorkspaceRequest 的样子:

using Newtonsoft.Json;
using System;

namespace MyProject.Models
{
  public class WorkspaceRequest
  {
    [JsonProperty(PropertyName = "name")]
     public string name { get; set; }

    [JsonProperty(PropertyName = "dedicated")]
    public string dedicated { get; set; }

    [JsonProperty(PropertyName = "alias")]
    public WorkspaceAlias[] Alias { get; set; }
  }
  public class WorkspaceAlias
  {
      [JsonProperty(PropertyName = "name")]
      public string name { get; set; }
  }

}

当我将数据保存到存储表时,它会正确地为我创建所有各种键/值。但是当我尝试检索数据时,我没有获取工作区的详细信息。

这就是我得到的结果:

{
    "partitionKey": "mypartitionkey",
    "rowKey": "85ffa92e-41ec-43ed-a01c-67eae99d7a83",
    "timestamp": "2022-02-24T15:17:57.6496818+00:00",
    "eTag": {},
    "requestId": "85ffa92e-41ec-43ed-a01c-67eae99d7a83",
    "status": "enqueued",
    "request": null
}

这部分是我如何保存到表中的:

   public async Task<WorkspaceResponse> AddProvisioningRequest(WorkspaceRequest request, string requestId)   
 {
          //stuff.... 

            var entity = new TableEntity(provisioningRecord.status,provisioningRecord.requestId)
            {
                {"requestId",provisioningRecord.requestId.ToString()},
                {"status",provisioningRecord.status.ToString()},
                {"workspace",JsonConvert.SerializeObject(provisioningRecord.workspace)}
            };
            await tableClient.AddEntityAsync(entity);

这就是检索记录的方法的样子:

    public async Task<ProvisioningRecord> GetWorkspaceRequest(string requestId)            
    {
        ProvisioningRecordentity = new();           
        try
        {                
            GetStorageAccountConnectionData(); 
            var serviceClient = new TableServiceClient(
                new Uri(connection.storageUri),
                new TableSharedKeyCredential(connection.storageAccountName, connection.storageAccountKey));
            var tableClient = serviceClient.GetTableClient(connection.tableName);
            entity = tableClient.GetEntity<ProvisioningRecord>(
                                "mypartitionKey",
                                requestId);                  
            return entity;
        } 
        catch (Exception ex)
        {
            Console.Write(ex.Message);
            return entity;
        }
    }

当我单步执行代码时,我可以看到“实体”有一个“工作空间”属性类型为 WorkspaceRequest,但它为 null。不过 status 和 requestId 都可以。

你能告诉我我哪里出错了吗?

谢谢。

编辑 1

为了提供帮助,这里是我正在检索的实体对象的调试输出:

entity
{MyProject.Models.ProvisioningRecord}
ETag [ETag]:{W/"datetime'2022-02-24T15%3A17%3A57.6496818Z'"}
PartitionKey [string]:"myPartitionKey"
RowKey [string]:"85ffa92e-41ec-43ed-a01c-67eae99d7a83"
Timestamp:{2022-02-24 3:17:57 PM +00:00}
requestId [string]:"85ffa92e-41ec-43ed-a01c-67eae99d7a83"
status [string]:"enqueued"
workspace [WorkspaceRequest]:null

下面的屏幕截图显示了如何将所有工作区数据保存在单个键/值对中:

在此处输入图像描述

I have the following class that represents a record in my storage table:

using Newtonsoft.Json;
using Azure.Data.Tables;
using System;
using Azure;

namespace MyProject.Models
{
    public class ProvisioningRecord:ITableEntity
  {
    public string PartitionKey { get; set;}
    public string RowKey { get; set; }
    public DateTimeOffset? Timestamp { get; set; }
    public ETag ETag {get;set; }

    [JsonProperty(PropertyName = "requestId")]
     public string requestId { get; set; }

    [JsonProperty(PropertyName = "status")]
    public string status { get; set; }

    [JsonProperty(PropertyName = "request")]
    public WorkspaceRequest workspace { get; set; }
  }
  
}

This is what WorkspaceRequest looks like:

using Newtonsoft.Json;
using System;

namespace MyProject.Models
{
  public class WorkspaceRequest
  {
    [JsonProperty(PropertyName = "name")]
     public string name { get; set; }

    [JsonProperty(PropertyName = "dedicated")]
    public string dedicated { get; set; }

    [JsonProperty(PropertyName = "alias")]
    public WorkspaceAlias[] Alias { get; set; }
  }
  public class WorkspaceAlias
  {
      [JsonProperty(PropertyName = "name")]
      public string name { get; set; }
  }

}

When I save the data to the storage table, it correct creates all the various key/values for me. But when I try to retrieve the data, I'm not getting the details of the workspace back.

This is what I get back:

{
    "partitionKey": "mypartitionkey",
    "rowKey": "85ffa92e-41ec-43ed-a01c-67eae99d7a83",
    "timestamp": "2022-02-24T15:17:57.6496818+00:00",
    "eTag": {},
    "requestId": "85ffa92e-41ec-43ed-a01c-67eae99d7a83",
    "status": "enqueued",
    "request": null
}

THis is in part, how I save to the table:

   public async Task<WorkspaceResponse> AddProvisioningRequest(WorkspaceRequest request, string requestId)   
 {
          //stuff.... 

            var entity = new TableEntity(provisioningRecord.status,provisioningRecord.requestId)
            {
                {"requestId",provisioningRecord.requestId.ToString()},
                {"status",provisioningRecord.status.ToString()},
                {"workspace",JsonConvert.SerializeObject(provisioningRecord.workspace)}
            };
            await tableClient.AddEntityAsync(entity);

This is what the method to retrieve records looks like:

    public async Task<ProvisioningRecord> GetWorkspaceRequest(string requestId)            
    {
        ProvisioningRecordentity = new();           
        try
        {                
            GetStorageAccountConnectionData(); 
            var serviceClient = new TableServiceClient(
                new Uri(connection.storageUri),
                new TableSharedKeyCredential(connection.storageAccountName, connection.storageAccountKey));
            var tableClient = serviceClient.GetTableClient(connection.tableName);
            entity = tableClient.GetEntity<ProvisioningRecord>(
                                "mypartitionKey",
                                requestId);                  
            return entity;
        } 
        catch (Exception ex)
        {
            Console.Write(ex.Message);
            return entity;
        }
    }

When I step through the code, I can see that "entity" has a "workspace" property of type WorkspaceRequest, but it's null. The status and requestId are ok though.

Can you show me where I've gone wrong?

Thanks.

Edit 1

To help, here's a debug output of the entity object I'm retrieving:

entity
{MyProject.Models.ProvisioningRecord}
ETag [ETag]:{W/"datetime'2022-02-24T15%3A17%3A57.6496818Z'"}
PartitionKey [string]:"myPartitionKey"
RowKey [string]:"85ffa92e-41ec-43ed-a01c-67eae99d7a83"
Timestamp:{2022-02-24 3:17:57 PM +00:00}
requestId [string]:"85ffa92e-41ec-43ed-a01c-67eae99d7a83"
status [string]:"enqueued"
workspace [WorkspaceRequest]:null

Here's a screenshot showing how all workspace data is saved in a single key /value pair:

enter image description here

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写下不归期 2025-01-16 18:24:34

当我调用 GetEntity 时,我通过更改逻辑取得了一些进展。我不会将其转换为 ,而是将其视为 ,然后我将尝试手动将表实体映射到配置记录。

换句话说,我将其更改

 entity = tableClient.GetEntity<ProvisioningRecord>(
                                "myPartitionKey",
                                requestId);     

为:

 entity = tableClient.GetEntity<TableEntity>(
                                "enqueued",
                                requestId); 

现在,当我对表实体进行调试时,这就是我看到的:

在此处输入图像描述

所以我将创建一个新方法手动从 TableEntity 映射到我的自定义类型。

I've made some progress by changing my logic when I call the GetEntity. Instead of casting it to , I treat it like a , and then I will try to manually map the table entity to a provisioning record.

So in other words, I changed this:

 entity = tableClient.GetEntity<ProvisioningRecord>(
                                "myPartitionKey",
                                requestId);     

To this:

 entity = tableClient.GetEntity<TableEntity>(
                                "enqueued",
                                requestId); 

And now, when I do a debug on the table entity, this is what I see:

enter image description here

So I'm going to just create a new method to manually map from TableEntity to my custom type.

~没有更多了~
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