cryptoanarchywiki.github.io/_posts/2016-04-20-adding-broadcast-mail-to-all-users-registered-inside-django-admin.markdown

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post	Adding BroadCast Mail to All Users Registered inside Django Admin	2016-04-20 19:51:02 +0700	python django

Adding BroadCast Mail to All User Registered in Django Admin. This is my last problem, we need custom default Django Admin to can submit BroadCast mail to All User. Because this is perfectly to make a promotions.

This problem has been helped by our Danny W. Adair who are answered someone's question about the "Django Admin Customizing".

In this configuration, we use gmail for email backend. Please following this tutorial first Email BackEnd with SMTP Gmail.

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1. In your models.py

{% highlight python %} class BroadCast_Email(models.Model): subject = models.CharField(max_length=200) created = models.DateTimeField(default=timezone.now) message = RichTextUploadingField()

def __unicode__(self):
    return self.subject

class Meta:
    verbose_name = "BroadCast Email to all Member"
    verbose_name_plural = "BroadCast Email"

{% endhighlight %}

---

2. In your admin.py, importing some module for "admin" and for "email setup".

{% highlight python %} from django.contrib import admin from django.utils.safestring import mark_safe import threading from django.conf import settings from django.http import HttpResponse from django.core.mail import (send_mail, BadHeaderError, EmailMessage) from django.contrib.auth.models import User

class EmailThread(threading.Thread): def init(self, subject, html_content, recipient_list): self.subject = subject self.recipient_list = recipient_list self.html_content = html_content threading.Thread.init(self)

def run(self):
    msg = EmailMessage(self.subject, self.html_content, settings.EMAIL_HOST_USER, self.recipient_list)
    msg.content_subtype = "html"
    try:
        msg.send()
    except BadHeaderError:
        return HttpResponse('Invalid header found.')

class BroadCast_Email_Admin(admin.ModelAdmin): model = models.BroadCast_Email

def submit_email(self, request, obj): #`obj` is queryset, so there we only use first selection, exacly obj[0]
    list_email_user = [ p.email for p in User.objects.all() ] #: if p.email != settings.EMAIL_HOST_USER   #this for exception
    obj_selected = obj[0]
    EmailThread(obj_selected.subject, mark_safe(obj_selected.message), list_email_user).start()
submit_email.short_description = 'Submit BroadCast (1 Select Only)'
submit_email.allow_tags = True

actions = [ 'submit_email' ]

list_display = ("subject", "created")
search_fields = ['subject',]

admin.site.register(models.BroadCast_Email, BroadCast_Email_Admin)

{% endhighlight %}

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3. And then, you can see. we have Submit BroadCast selection, just click button Go to submit broadcast mail.