如何将遗留领域JSON数据迁移到MongoDB领域(Atlas) -关系问题

import pymongo
import json

# 连接到MongoDB Atlas
client = pymongo.MongoClient("mongodb+srv://<username>:<password>@cluster0.mongodb.net/test?retryWrites=true&w=majority")
db = client.test_database
collection = db.test_collection

# 假设遗留JSON数据如下
legacy_data = [
    {
        "id": 1,
        "name": "Alice",
        "orders": [
            {"order_id": 101, "product": "Laptop"},
            {"order_id": 102, "product": "Phone"}
        ]
    },
    {
        "id": 2,
        "name": "Bob",
        "orders": [
            {"order_id": 103, "product": "Tablet"}
        ]
    }
]

# 转换为MongoDB文档
converted_data = []
for user in legacy_data:
    user_doc = {
        "_id": user["id"],
        "name": user["name"],
        "orders": user["orders"]
    }
    converted_data.append(user_doc)

# 批量插入到MongoDB Atlas
collection.insert_many(converted_data)

print("数据迁移完成")