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 stage2.models import Participant
   7 from wtem.management.commands import send_mail
   8
   9
  10 class Command(BaseCommand):
  11     def handle(self, *args, **options):
  12         sent = 0
  13         failed = 0
  14
  15         query = Participant.objects.exclude(contact=None).order_by('contact__contact').distinct('contact__contact')\
  16             .values_list('contact__contact', flat=True)
  17         template_name = args[0]
  18         message = render_to_string('stage2/' + template_name + '.txt')
  19         subject = render_to_string('stage2/' + template_name + '_subject.txt')
  20
  21         answer = raw_input(
  22             'Send the following to %d teachers with subject "%s"\n\n %s\n\n?' %
  23             (query.count(), subject.encode('utf8'), message.encode('utf8')))
  24
  25         if answer == 'yes':
  26             for contact in query:
  27                 try:
  28                     self.send_message(message, subject, contact)
  29                 except Exception as e:
  30                     failed += 1
  31                     self.stdout.write('failed sending to: ' + contact + ' - ' + str(e))
  32                 else:
  33                     sent += 1
  34                     self.stdout.write('message sent to: ' + contact)
  35
  36         self.stdout.write('sent: %s, failed: %s' % (sent, failed))
  37
  38     def send_message(self, message, subject, email):
  39         self.stdout.write('>>> sending to %s' % email)
  40         send_mail(subject=subject, body=message, to=[email])
  41