Django 插入新记录时如何向用户发送短信

我有型号订单

class Order(models.Model):
STATUS = (
    ('Pending', 'Pending'),
    ('Out for delivery', 'Out for delivery'),
    ('Delivered', 'Delivered'),
)
shop = models.ForeignKey(Shop, models.CASCADE, null=True)
customer = models.ForeignKey(Customer, models.CASCADE, null=True)
product = models.ForeignKey(Product, models.CASCADE, null=True)
quantity = models.CharField(max_length=30, null=True, )
date_created = models.DateTimeField(auto_now_add=True, null=True)
status = models.CharField(max_length=200, null=True, choices=STATUS, default='Pending')
note = models.CharField(max_length=1000, null=True)

当客户插入订单时，我如何向商店发送短信，然后商店接收到客户新订单的短信。数量中的product.name

客户模型 商店模型 和我的订单视图.py

def CreateOrder(request, shop_id, product_id):
    customer = request.user.customer
    shop = Shop.objects.get(id=shop_id)
    product = Product.objects.get(id=product_id)
    form = OrderForm()
    quantity = request.POST.get('quantity')
    note = request.POST.get('note')
    if request.method == 'POST':
        order = Order.objects.create(customer=customer, shop=shop,
                                   product=product, quantity=quantity, note=note)
        return redirect('CustomerOrder')

你可以在Django中使用。基本上，当某些事件发生时，您的应用程序将收到通知。在您的情况下，您可以使用

post\u save

，在调用模型的

save（）

方法后将触发信号。在Django文档中，您可以查看可用的不同类型的

信号的完整列表

from .models import Order, Shop, Customer
from django.dispatch import Signal, receiver
from django.db.models.signals import post_save


@receiver(post_save, sender=Order)
def send_msg_to_shop_owners(sender, instance, **kwargs):
    # YOUR CODE HERE 
    pass
    

在接收器内部，您可以使用发送API调用到您想要使用的任何消息服务

注意：
post\u save
信号将在调用您的
订单
型号的
save（）方法时触发。这将包括更新您的模型。因此，根据您的用例，您甚至可以创建自己的
自定义信号

Django中的自定义信号

from django.dispatch import Signal, receiver

# DEFINE SIGNAL NAME WITH REQUIRED ARGUMENTS; FOR NOW JUST order_id, user_name
send_message_to_shop_owner = Signal(providing_args=["order_id","user_name"])

@receiver(send_message_to_shop_owner)
def send_message_to_shop_owner_receiver(sender, **kwargs):
    # access the parameters passed
    # order_id = kwargs["order_id"]
    # user_name = kwargs["user_name"]
    # REST OF YOUR CODE GOES HERE
    pass

现在您已经定义了
信号
，您需要在希望
发送
消息时触发它。在
drf
中，我通常将其放在
serializers.py中，但您可以在
视图中执行。
以下是您将如何触发该信号

views.py

from .signals import send_message_to_shop_owner

def CreateOrder(request, shop_id, product_id):
    customer = request.user.customer
    shop = Shop.objects.get(id=shop_id)
    product = Product.objects.get(id=product_id)
    form = OrderForm()
    quantity = request.POST.get('quantity')
    note = request.POST.get('note')
    if request.method == 'POST':
        order = Order.objects.create(customer=customer, shop=shop,
                                   product=product, quantity=quantity, note=note)
        # Ignore my custom parameters, instead of that you can send yours
        send_message_to_shop_owner.send(Sender=Order, order_id=order_id,user_name=user_name)
        return redirect('CustomerOrder')

注意：对于
自定义信号
您需要随时触发它。
如果您不使用它，请不要使用
drf
标记。我看到你们提出的许多问题都遵循同样的模式。顺便说一句，我注意到你们所有的问题都没有答案。你看到了吗？这有助于表明你的问题已经解决。有可能你真的没有得到任何令人满意的答案；我只是想确定你知道这个功能
from django.dispatch import Signal, receiver

# DEFINE SIGNAL NAME WITH REQUIRED ARGUMENTS; FOR NOW JUST order_id, user_name
send_message_to_shop_owner = Signal(providing_args=["order_id","user_name"])

@receiver(send_message_to_shop_owner)
def send_message_to_shop_owner_receiver(sender, **kwargs):
    # access the parameters passed
    # order_id = kwargs["order_id"]
    # user_name = kwargs["user_name"]
    # REST OF YOUR CODE GOES HERE
    pass

from .signals import send_message_to_shop_owner

def CreateOrder(request, shop_id, product_id):
    customer = request.user.customer
    shop = Shop.objects.get(id=shop_id)
    product = Product.objects.get(id=product_id)
    form = OrderForm()
    quantity = request.POST.get('quantity')
    note = request.POST.get('note')
    if request.method == 'POST':
        order = Order.objects.create(customer=customer, shop=shop,
                                   product=product, quantity=quantity, note=note)
        # Ignore my custom parameters, instead of that you can send yours
        send_message_to_shop_owner.send(Sender=Order, order_id=order_id,user_name=user_name)
        return redirect('CustomerOrder')