Mongoengine嵌入式文档更新错误列表对象没有属性_meta

问题描述

# POST Request coming from R

from flask import Flask,request
import mongoengine
import os
import json
from models.processed_data import ModelResults,BetInfo,GameFeature,TeamStats
app = Flask(__name__)

# connect to db & env var
db_uri = os.environ['MONGO_URI']
conn = mongoengine.connect('B',host=db_uri)


@app.route("/result",methods=['POST'])
def get_incoming_data():
    try:
        req_data = request.get_json()
        # init array
        update_game_data = []
        # destruct paylaod
        for i in range(len(req_data)):
            payload_data = req_data['games'][i]
            gameId = int(payload_data['gameID'])
            game = GameFeature.objects(game_id=gameId).get()
            # create betInfo sub doc
            game.betInfo = BetInfo()
            # assign betInfo data
            game.betInfo.ml_home = int(payload_data['betInfo']['mlHome'])
            # create model Results sub Model
            game.modelResults = ModelResults()
            # assign modelResult Data
            game.modelResults.ml_home_prob = float(payload_data['modelResults' ['mlHomeProb'])
 
            update_game_data.append(game)
            print(update_game_data)
        GameFeature.objects.save(update_game_data)
        return payload_data
    except Exception as e:
        print(e)
        return str(e)

每当我到达端点时，都会得到200 RES，错误消息为'list' object has no attribute '_Meta'。我的GameFeature类具有如下的Meta对象：

元= { 'collection'：'game_feature_data_sandBox'， }

解决方法

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