在 Django 中发送电子邮件通知

Question

我正在构建一个简单的博客应用程序。我在开发服务器上建立了我的博客和运行。现在，我/管理员每次创建新博客 post 时，我都希望向所有订阅者发送邮件。我知道使用 Django 的 sending_email 库，但我不知道如何使该过程自动化，即每次我创建另一个时如何使用 send_email() 自动发送电子邮件 ' blog_post' 对象？

注意：我正在使用 Django 的管理界面创建新的“blog_post”对象，所以基本上当我 'save' 对象时，我想发送电子邮件。

我是 Django 的新手，任何建议、指导都会有很大帮助

代码如下： signals.py

@receiver(signals.post_save, sender=Post)
def send_post_mail(sender, instance, created, **kwargs):
    print('signal send')
    subject = "Thank you for registering with us"
    send_mail(subject, 'Body', 'sender@gmail.com', 
    ['reciever@gmail.com'], fail_silently=False,)

Models.py

class Post(models.Model):
STATUS_CHOICES = (
    ('draft', 'Draft'),
    ('published', 'Published'),
)
title = models.CharField(max_length=250)
slug = models.SlugField(max_length=250, 
                        unique = True)
author = models.ForeignKey(User,
                           related_name='blog_posts', 
 on_delete=models.CASCADE)
audio = models.URLField(max_length = 200, default = 
"spotify:episode:0Vbl7RvX3KE0lSkRmy9Wjj") 
body = models.TextField()
publish = models.DateTimeField(default=timezone.now)
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)

apps.py

    from django.apps import AppConfig


   class BlogConfig(AppConfig):
         name = 'blog'


         def ready(self):
         import blog.signals

views.py

     def post_list(request):
        posts = Post.objects.order_by('-publish')
        return render(request, 'template.html', context = {'post':posts})

blog/urls.py

urlpatterns = [
#path('', views.Postlist, name='main-view'),
path('', views.get_name, name='main-form-view'),
path('<slug:slug>', views.detail_post, name='detail-post')

]

settings.py

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_HOST_USER = 'sender@gmail.com'
EMAIL_HOST_PASSWORD = 'seder's account password'
EMAIL_USE_TLS = False

init.py

default_app_config = 'blog.apps.BlogConfig'

Edit : 如上所示配置 app.py 和 init.py 后有效。

Answer 1

在 models.py.
将以下导入添加到 signals.py

from django.dispatch import receiver
from django.db.models import signals
from .models import Blog_post

创建方法并使用您的电子邮件库

@receiver(signals.post_save, sender=Blog_post)
def send_mail(sender, instance, created, **kwargs):
    # to test if the signal is working
    print('signal send')
    # replace it with your code once it works

将信号添加到 apps.py 与您的 models.py

from django.apps import AppConfig


class YourAppConfig(AppConfig):
    name = 'yourapp'

    # Add this to use signals
    def ready(self):
        from . import signals

Answer 2

如果您需要向所有订阅者发送电子邮件，请使用这样的信号：

You can create a signal in blog post view like this:

@receiver(post_save, sender=BlogPost)
def send_mail_to_subs(sender, instance, created, **kwargs):
    if created:
        for subs in instance.author.subscribed.all():
            send_mail(
                f'New Post from {instance.author}',
                f'Title: {instance.post_title}',
                'youremail',
                [subs.email],
            )

写得很好 :)

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