MongoKit simple inheritance example 3

gistfile1.py

from mongokit import ObjectId, Connection

connection = Connection()

@connection.register
class UserNugget(Core):
    __collection__ = "user_nuggets"
    structure = {
        "url": unicode,
        "topics": [unicode],
        "user_id": unicode
    }
    required_fields = ["url", "topics", "user_id"]

    def save(self, *args, **kwargs):
        super(self, UserNugget).save(*args, **kwargs)
        nugget = self.db.Nugget.find_one({"url": self.url})
        if not nugget:
            nugget = self.db.Nugget(url=url, discoverer=self.user_id)
            nugget.save()
        self.db.Nugget.collection.update({"url": self.url}, {"$addToSet": {"topics": {"$each": self.topics}}, "$inc": 1})