embedded.py

class Address(db.Document):
    config_collection_name = "address"
    street_address = db.StringField()
    city = db.StringField()
    state_province = db.StringField()
    country = db.StringField()

class User(db.Document):
    config_collection_name = "user"
    name = db.StringField()
    email = db.StringField()
    address = db.ListField(db.DocumentField(Address))

    def __str__(self):
        return '%s (%s)' % (self.name, self.email)


def test_user():
    a = Address(street_address='123 4th ave', city='NY', state_province='NY', country='USA')
    u = User(name='jeff', email='jeff@qcircles.net', address=[a])
    u.save()

    a1 = Address(street_address='Central City', city='Stockholm', state_province='Stockholm', country='Sweden')
    update = User.query.filter(User.name == 'jeff').append(User.address, a1).multi().execute()
    
def add_user():
    a = Address(street_address='123 4th ave', city='NY', state_province='NY', country='USA')
    u = User(name='jeff', email='jeff@qcircles.net', address=[a])
    u.save()

def add_address():
    a1 = Address(street_address='Central City', city='Stockholm', state_province='Stockholm', country='Sweden')
    User.query.filter(User.name == 'jeff').append(User.address, a1).multi().execute()

def remove_address():
    query = User.query.filter({User.name: 'jeff', User.address: {'$elemMatch':{Address.city:'Stockholm'}}})

if __name__ == '__main__':
    add_user()
    add_address()
    remove_address()