django-orchestra-test/orchestra/contrib/mailer/backends.py

34 lines
1.2 KiB
Python

from django.conf import settings as djsettings
from django.core.mail.backends.base import BaseEmailBackend
from .models import Message
from .tasks import send_message
class EmailBackend(BaseEmailBackend):
"""
A wrapper that manages a queued SMTP system.
"""
def send_messages(self, email_messages):
if not email_messages:
return
num_sent = 0
is_bulk = len(email_messages) > 1
default_priority = Message.NORMAL if is_bulk else Message.CRITICAL
for message in email_messages:
priority = message.extra_headers.get('X-Mail-Priority', default_priority)
content = message.message().as_string()
for to_email in message.recipients():
message = Message.objects.create(
priority=priority,
to_address=to_email,
from_address=getattr(message, 'from_email', djsettings.DEFAULT_FROM_EMAIL),
subject=message.subject,
content=content,
)
if priority == Message.CRITICAL:
# send immidiately
send_message.apply_async(message)
num_sent += 1
return num_sent