wtem/management/commands/wtem_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 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 = Contact.objects.filter(form_tag='wtem').order_by('contact').distinct('contact')
  16         template_name = args[0]
  17         message = render_to_string('wtem/' + template_name + '.txt')
  18         subject = render_to_string('wtem/' + template_name + '_subject.txt')
  19
  20         answer = raw_input(
  21             'Send the following to %d teachers with subject "%s"\n\n %s\n\n?' %
  22             (query.count(), subject.encode('utf8'), message.encode('utf8')))
  23
  24         if answer == 'yes':
  25             for contact in query:
  26                 try:
  27                     self.send_message(message, subject, contact.contact)
  28                 except Exception as e:
  29                     failed += 1
  30                     self.stdout.write('failed sending to: ' + contact.contact + ' - ' + str(e))
  31                 else:
  32                     sent += 1
  33                     self.stdout.write('message sent to: ' + contact.contact)
  34
  35         self.stdout.write('sent: %s, failed: %s' % (sent, failed))
  36
  37     def send_message(self, message, subject, email):
  38         self.stdout.write('>>> sending to %s' % email)
  39         send_mail(subject=subject, body=message, to=[email])
  40