mongoengine遗传django

我尝试过这个例子： 但不是为我工作

我想存储天气api中的数据：

我有这样的模特

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

正在尝试保存数据，例如： models.State.objects.create（温度=17）

什么也救不了

---

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。

您需要类实例，例如：

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()

---

哦，我的上帝！我看了2天的代码，没有得到这些小差异xD