＃放码来战．端云一体化开发＃HarmonyOS 5 【农民叔叔】22.【云侧工程】病虫害云数据库存储区、对象类型、数据分析

存储区：可以理解为数据库；

对象类型：可以理解为表结构；

数据：就是表中的记录；

完整的云数据库开发流程及初始化配置，请参见官方文档：

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1.指定存储区NMSS

db-config.json文件如下：

{
	"defaultCloudDBZoneName": "NMSS",
	"defaultDataStorageLocation": "CN"
}

2.定义病虫害Pest对象类型

{
  "objectTypeName": "Pest",
  "fields": [
    {
      "fieldName": "AGID",
      "fieldType": "Integer",
      "notNull": true,
      "belongPrimaryKey": true
    },
    {
      "fieldName": "ID",
      "fieldType": "String"
    },
    {
      "fieldName": "Type",
      "fieldType": "String"
    },
    {
      "fieldName": "Img",
      "fieldType": "String"
    },
    {
      "fieldName": "PestName",
      "fieldType": "String"
    },
    {
      "fieldName": "PestDesc",
      "fieldType": "String"
    },
    {
      "fieldName": "PestCtrl",
      "fieldType": "Text"
    },
    {
      "fieldName": "UpdateDate",
      "fieldType": "Date"
    },
    {
      "fieldName": "UserId",
      "fieldType": "String"
    }
  ],
  "indexes": [
    {
      "indexName": "UpdateDateIndex",
      "indexList": [
        {
          "fieldName": "UpdateDate",
          "sortType": "DESC"
        }
      ]
    },
    {
      "indexName": "AGIDIndex",
      "indexList": [
        {
          "fieldName": "AGID",
          "sortType": "ASC"
        }
      ]
    }
  ],
  "permissions": [
    {
      "role": "World",
      "rights": [
        "Read"
      ]
    },
    {
      "role": "Authenticated",
      "rights": [
        "Read",
        "Upsert",
        "Delete"
      ]
    },
    {
      "role": "Creator",
      "rights": [
        "Read",
        "Upsert",
        "Delete"
      ]
    },
    {
      "role": "Administrator",
      "rights": [
        "Read",
        "Upsert",
        "Delete"
      ]
    }
  ]
}

3.自动生成客户端侧工程引用的Pest实体对象（生成的是ts文件）

/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2024-2024. All rights reserved.
 * Generated by the CloudDB ObjectType compiler. DO NOT EDIT!
 */
import { cloudDatabase } from '@kit.CloudFoundationKit';

class Pest extends cloudDatabase.DatabaseObject {
  AGID: number;
  ID: string;
  Type: string;
  Img: string;
  PestName: string;
  PestDesc: string;
  PestCtrl: string;
  UpdateDate: Date;
  UserId: string;

  naturalbase_ClassName(): string {
    return 'Pest';
  }
}

export { Pest };

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