stage2/management/commands/stage2_email_teachers.py

   1 # -*- coding: utf-8 -*-
   2
   3 from django.core.management.base import BaseCommand
   4 from django.template.loader import render_to_string
   5
   6 from contact.models import Contact
   7 from stage2.models import Participant
   8 from wtem.management.commands import send_mail
   9
  10
  11 class Command(BaseCommand):
  12     def handle(self, *args, **options):
  13         sent = 0
  14         failed = 0
  15
  16         query = Participant.objects.order_by('contact__contact').distinct('contact__contact')\
  17             .values_list('contact__contact', flat=True)
  18         template_name = args[0]
  19         message = render_to_string('wtem/' + template_name + '.txt')
  20         subject = render_to_string('wtem/' + template_name + '_subject.txt')
  21
  22         answer = raw_input(
  23             'Send the following to %d teachers with subject "%s"\n\n %s\n\n?' %
  24             (query.count(), subject.encode('utf8'), message.encode('utf8')))
  25
  26         if answer == 'yes':
  27             for contact in query:
  28                 try:
  29                     self.send_message(message, subject, contact)
  30                 except Exception as e:
  31                     failed += 1
  32                     self.stdout.write('failed sending to: ' + contact + ' - ' + str(e))
  33                 else:
  34                     sent += 1
  35                     self.stdout.write('message sent to: ' + contact)
  36
  37         self.stdout.write('sent: %s, failed: %s' % (sent, failed))
  38
  39     def send_message(self, message, subject, email):
  40         self.stdout.write('>>> sending to %s' % email)
  41         send_mail(subject=subject, body=message, to=[email])
  42