我的模型是关于顶级电影的列表
class Movie(Document):
title = StringField()
...
ranks = ListField(EmbeddedDocumentField('Rank'))
class Rank(EmbeddedDocument):
rank = IntField()
imdb_rating = FloatField()
date = StringField(required=True)
如何编写查询以仅获取今天有排名记录的电影?