wtem/management/commands/wtem_send_results.py

   1 # -*- coding: utf-8 -*-
   2
   3 from optparse import make_option
   4
   5 from django.core.management.base import BaseCommand
   6 from wtem.management.commands import send_mail
   7 from django.utils import translation
   8 from django.template.loader import render_to_string
   9
  10 from contact.models import Contact
  11 from wtem.models import Submission
  12
  13
  14 def get_submissions():
  15     return sorted(Submission.objects.exclude(answers=None).all(), key=lambda s: -s.final_result)
  16
  17 minimum = 34
  18
  19
  20 class Command(BaseCommand):
  21
  22     option_list = BaseCommand.option_list + (
  23         make_option(
  24             '--to-teachers',
  25             action='store_true',
  26             dest='to_teachers',
  27             default=False,
  28             help='Send emails to teachers'),
  29         make_option(
  30             '--to-students',
  31             action='store_true',
  32             dest='to_students',
  33             default=False,
  34             help='Send emails to students'),
  35         make_option(
  36             '--only-to',
  37             action='store',
  38             dest='only_to',
  39             default=None,
  40             help='Send email only to one address'),
  41     )
  42
  43     def __init__(self):
  44         super(Command, self).__init__()
  45         self.sent = self.failed = None
  46
  47     def handle(self, *args, **options):
  48         translation.activate('pl')
  49         for target in ['to_teachers', 'to_students']:
  50             if options[target]:
  51                 self.sent = 0
  52                 self.failed = 0
  53                 getattr(self, 'handle_' + target)(*args, **options)
  54
  55     def handle_to_students(self, *args, **options):
  56         self.stdout.write('>>> Sending results to students')
  57         subject = 'Wyniki I etapu Olimpiady Cyfrowej'
  58
  59         for submission in get_submissions():
  60             if options['only_to'] and submission.email != options['only_to']:
  61                 continue
  62             final_result = submission.final_result
  63             if final_result < minimum:
  64                 template = 'results_student_failed.txt'
  65             else:
  66                 template = 'results_student_passed.txt'
  67             message = render_to_string('wtem/' + template, dict(final_result=submission.final_result))
  68             self.send_message(message, subject, submission.email)
  69
  70         self.sum_up()
  71
  72     def handle_to_teachers(self, *args, **options):
  73         self.stdout.write('>>> Sending results to teachers')
  74         subject = 'Wyniki I etapu Olimpiady Cyfrowej'
  75
  76         submissions_by_contact = dict()
  77
  78         for submission in get_submissions():
  79             if options['only_to'] and submission.contact.contact != options['only_to']:
  80                 continue
  81             submissions_by_contact.setdefault(submission.contact.id, []).append(submission)
  82
  83         for contact_id, submissions in submissions_by_contact.items():
  84             contact = Contact.objects.get(id=contact_id)
  85             message = render_to_string('wtem/results_teacher.txt', dict(submissions=submissions))
  86             self.send_message(message, subject, contact.contact)
  87
  88         self.sum_up()
  89
  90     def sum_up(self):
  91         self.stdout.write('sent: %s, failed: %s' % (self.sent, self.failed))
  92
  93     def send_message(self, message, subject, email):
  94         self.stdout.write('>>> sending results to %s' % email)
  95         try:
  96             send_mail(subject=subject, body=message, to=[email])
  97         except BaseException, e:
  98             self.failed += 1
  99             self.stdout.write('failed sending to: ' + email + ': ' + str(e))
 100         else:
 101             self.sent += 1
 102             self.stdout.write('message sent to: ' + email)