How to save user's daily progress?

Question

I'm building an app where I'm trying to store the user's progress on a game. I want to be able to store the score of a player on a daily basis, and then retrieve the day's score when I look for the date.

I wanted to store a dictionary in the database, with keys being the dates when the user played and the values being the score, but I can't store a dictionary with GAE.

How can I do? I'm using google appengine with python

Thanks

Answer 1

I think an easy way would be to create a db.Model to represent an entry in the dictionary you were originally thinking about. Just to sketch it out, what I mean is something similar to this:

class DailyProgress(db.Model):
    date = db.DateTimeProperty(auto_now_add=True)
    score = db.IntegerProperty()

Then, you could store a list of those for each of your users.

Answer 2

A dictionary can be transformed back and forth between a list-of-tuples.

aTupleOfTuples= tuple( someDict.items() )

aDict = dict( aTupleOfTuples )

This is probably what you're looking for.

Answer 3

可以更快地将字典解压缩到Datastore.Model中，或者更不透明地pickle.dumps（）将字典转储为字符串，然后通过Gql将其存储。