我试过这个例子:http ://mongoengine-odm.readthedocs.org/en/latest/tutorial.html?highlight=query%20document%20inheritance#posts 但不适合我。
我想存储来自天气 api 的数据: http ://api.met.no/weatherapi/locationforecast/1.8/?lat=46.079001;lon=14.51860012
所以我有这样的models.py
import mongoengine
class Weather(mongoengine.Document):
created = mongoengine.DateTimeField
latitude = mongoengine.DecimalField
longitude = mongoengine.DecimalField
model_name = mongoengine.StringField
class Precipitation(Weather):
dateFrom = mongoengine.DateTimeField(required=True)
dateTo = mongoengine.DateTimeField(required=True)
precipitation = mongoengine.DecimalField
symbol = mongoengine.IntField(min_value=1, max_value=23)
class State(Weather):
temperature = mongoengine.DecimalField
windDirection = mongoengine.StringField
windAngle = mongoengine.DecimalField
尝试保存数据,例如:models.State.objects.create(temperature=17)
什么都没有保存!
我知道我在字段定义中缺少构造函数的参数,但我真的不知道如何实现它。