copywriting_production/tests/mytest/models/t_odm_mongo_engine.py

# https://github.com/MongoEngine/mongoengine
'''
真难用，完全不兼容 pydantic ，并且没有方便的 dict 转换，而且搜索语句不是人类友好的方式，是作者自己定义的操作语句，完全倒反天罡。
'''
from datetime import datetime
from pydantic import BaseModel
from typing import List, Dict, Optional,TypedDict
from pymongo import MongoClient
from mongoengine import *

# test 数据库，没有则创建
connect('test', host='sv-v2', port=27017)

class Variant(EmbeddedDocument):
    name = StringField()
    price = FloatField()
    description = StringField()
    category = StringField()

# 集合名称为 product
class Product(Document):
    name = StringField()
    price = FloatField()
    description = StringField()
    image = StringField()
    brand = StringField()
    category = StringField()
    variant = ListField(EmbeddedDocumentField(Variant))



def test_get_product():
    product = Product(
        name="数据线2",
        price=100,
        description="产品描述", 
        image='123123',
        variant=[
           Variant(
                name="3M,蓝色",
                price=100,
                description="蓝色数据线",
            ), 
        ]

    )
    return product
def insert_object():
    product = test_get_product()
    product.save()

def update_one():
    product:Product  = Product.objects(name='数据线2').first()
    print(product.to_json())
    print(product.__weakref__)

def main():
    # insert_object()
    update_one()

if __name__ == "__main__":
    main()