如何使下面的代碼更有效率(例如,如何用查詢替換循環)? def get_question(datetime_now, questions_queryset, user):
best_schedule = None
best_question = None
# HOW TO ELIMINATE THE FOLLOWING LOOP AND REPLACE WITH A
我有一個Django模型,如: class Subscription(models.Model):
data = JSONField(default=dict)
我想要做這樣的事情: data = {"product_id": 123, "available": False}
subscription, new = Subscription.objects.get_or_creat
我有一個模型(跟蹤)與兒童(等級)。這可以被描述(簡體)爲: class Track(models.Model):
id = models.CharField('Unique ID', max_length=100,
primary_key=True)
title = models.CharField('Track title', max_length=100)