wtem/management/commands/wtem_send_keys.py

   1 # -*- coding: utf-8 -*-
   2
   3 import sys
   4 from optparse import make_option
   5
   6 from django.core.management.base import BaseCommand, CommandError
   7 from django.conf import settings
   8 from django.core.mail import send_mail
   9 from django.template.loader import render_to_string
  10
  11 from wtem.models import Submission, DEBUG_KEY
  12
  13
  14 class Command(BaseCommand):
  15     help = 'Sends personalized links to WTEM contestants'
  16     args = '<email_address1>, <email_address2>, ...'
  17
  18     option_list = BaseCommand.option_list + (
  19         make_option('--all',
  20             action='store_true',
  21             dest='all',
  22             default=False,
  23             help='Use all available submissions'),
  24         make_option('--force',
  25             action='store_true',
  26             dest='force',
  27             default=False,
  28             help='Force sending key even if one was already sent')
  29         )
  30
  31     def handle(self, *args, **options):
  32         if len(args) or options['all']:
  33             return self.send_keys(*args, **options)
  34         self.stdout.write('No submissions selected')
  35
  36     def send_keys(self, *args, **options):
  37         sent = 0
  38         skipped = 0
  39         failed = 0
  40
  41         query = Submission.objects.all()
  42         if not options['force']:
  43             query = query.filter(key_sent = False)
  44         if len(args):
  45             query = query.filter(email__in = args)
  46
  47         for submission in query.all():
  48             assert len(submission.key) == 30 or (settings.DEBUG and submission.key == DEBUG_KEY)
  49
  50             try:
  51                 self.send_key(submission)
  52             except Exception as e:
  53                 failed += 1
  54                 self.stdout.write('failed sending to: ' + submission.email + ' - ' + str(e))
  55             else:
  56                 submission.key_sent = True
  57                 submission.save()
  58                 sent += 1
  59                 self.stdout.write('key sent to: ' + submission.email)
  60
  61         self.stdout.write('sent: ' + str(sent))
  62
  63     def send_key(self, submission):
  64         self.stdout.write('>>> sending to ' + submission.email)
  65         send_mail(
  66             "WTEM - Twój link do zadań",
  67             render_to_string('wtem/email_key.txt', dict(submission = submission)),
  68             getattr(settings, 'WTEM_CONTACT_EMAIL', 'no-reply@edukacjamedialna.edu.pl'),
  69             [submission.email],
  70             fail_silently=False
  71             )