Django条件后更新模型

Question

我有这样的模型

class Foo(models.Model):
      bet = models.IntegerField()
      end_date = models.DateTimeField() \\some date in the future
      is_canceled = models.BooleanField(default=False)

当 end_date = datetime.now（）

时，我需要自动设置 is_canceled = True

Answer 1

您可以创建now = datetime.now() Foo.objects.filter(end_date__lte=now).update(is_canceled=True) 定期从class Foo(models.Model): bet = models.IntegerField() end_date = models.DateTimeField() \\some date in the future @property def is_canceled(self): if self.end_date <= datetime.now(): return True else: return False some_foo = Foo.objects.first() if some_foo.is_canceled: ... 运行并更改字段值

.select-hidden {
  display: none;
  visibility: hidden;
  padding-right: 10px;
}
.select {
  cursor: pointer;
  display: inline-block;
  position: relative;
  font-size: 16px;
  color: $select-color;
  width: $select-width;
  height: $select-height;
  border-radius: 5px;
}

但让这个领域变得更加动态

更好

EntityManager