满足特定条件时执行函数

Question

我的 django 应用程序有一个功能是send_sms，我还想要一个自动短信auto_sms 功能。当我的数据模型满足条件时。

@views.py

def send_sms(request):
    z = Rainfall.objects.latest('timestamp')
    numbers = Mobile.objects.all()
    message = ('Test Message')

    account_sid = '**************'
    auth_token = '**************'

    client = Client(account_sid, auth_token)
    for i in numbers:
        client.messages.create(to=i.mobile_number,
                               from_='**************',
                               body=message)


    return HttpResponseRedirect('/success/', 200)


def auto_sms(request):
    responses = Rainfall.objects.filter(
        level='Torrential' or 'Intense',
        timestamp__gt=now() - timedelta(days=1),
        sms_sent=False,
    )
    if responses.count() >= 10:
        send_sms(request)
        responses.update(sms_sent=True) 

@models.py

class Rainfall(models.Model):
    level = models.CharField(max_length=10, blank=True, default='')
    amount = models.FloatField()
    timestamp = models.DateTimeField(auto_now_add=True)

现在我正在测试它，当auto_sms 在一天内检测到数据库中有多个（10）个“激流或强烈”条目时。它必须自动执行send_sms，但它会返回错误：

Cannot resolve keyword 'sms_sent' into field. Choices are: amount, id, level, timestamp

我在这里错过了什么？请帮忙。谢谢！

Answer 1

您的 Rainfall 类中没有名为 sms_sent 的字段 - 考​​虑添加该字段或更改您的查询：

class Rainfall(models.Model):
    ...
    sms_sent = models.BooleanField(default=False) # add this field

    # override save method:
    def save(self, *args, **kwargs):

        if <some conditions are met>:

             # send sms:
             self.send_sms()
             self.sms_sent = True

        super(Rainfall, self).save(*args, **kwargs)

Answer 2

UPDATE

你好，

我的降雨模型实际上是这样的。抱歉，我现在就详细说明。

@models.py

class Rainfall(models.Model):
    level = models.CharField(max_length=10, blank=True, default='')
    amount = models.FloatField()
    timestamp = models.DateTimeField(auto_now_add=True)

    def update_level(self):
        if 0.1 <= self.amount < 2.5:
            return 'Light'
        elif 2.5 <= self.amount < 7.5:
            return 'Moderate'
        elif 7.5 < self.amount < 15:
            return 'Heavy'
        elif 15 <= self.amount < 30:
            return 'Intense'
        elif 30 <= self.amount < 50:
            return 'Torrential'

    def save(self, *args, **kwargs):
        if not self.level:
            self.level = self.update_level()
        super().save(*args, **kwargs)


class Sms(models.Model):
    description = models.CharField(max_length=100, blank=True)
    timestamp = models.DateTimeField(auto_now_add=True)

我的views.py看起来像这样。

def send_sms(request):
    z = Rainfall.objects.latest('timestamp')
    numbers = Mobile.objects.all()
    message = (f'Test ({z.timestamp})')

    account_sid = '*******'
    auth_token = '********'

    client = Client(account_sid, auth_token)
    for i in numbers:
        client.messages.create(to=i.mobile_number,
                               from_='********',
                               body=message)

    record = Sms.objects.create(description=f'{message}')
    record.save()

    return HttpResponseRedirect('/api/', 200)



def auto_sms(request):
    responses = Rainfall.objects.filter(
        level='Torrential' or 'Intense',
        timestamp__gt=now() - timedelta(days=1),
    )
    if responses.count() >= 5:
        send_sms(request)

    return HttpResponse(200)

现在我不能在我的降雨量上添加另一个字段，我可以改用 SMS 模型吗？对于auto_sms 的自动化？谢谢