api.py 文件源码

def random_batch(self, d):
        '''
        Return a random batch, optionally filtered
        '''
        BATCH_SIZE = 50
        sample_keys = Readable.Fetch(self.user, with_notes=True, limit=500, keys_only=True)
        if len(sample_keys) > BATCH_SIZE:
            sample_keys = random.sample(sample_keys, BATCH_SIZE)
        readables = ndb.get_multi(sample_keys)
        self.set_response({
            'readables': [r.json() for r in readables]
            }, success=True)