wtem/management/commands/wtem_send_results.py

   1 # -*- coding: utf-8 -*-
   2
   3 from optparse import make_option
   4
   5 from collections import defaultdict
   6 from django.core.management.base import BaseCommand
   7 from wtem.management.commands import send_mail
   8 from django.utils import translation
   9 from django.template.loader import render_to_string
  10
  11 from wtem.models import Submission
  12
  13
  14 def get_submissions():
  15     return sorted(Submission.objects.exclude(answers=None), key=lambda s: -s.final_result)
  16
  17 minimum = 63.06
  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         make_option(
  42             '--dummy',
  43             action='store_true',
  44             dest='dummy',
  45             default=False,
  46             help='Print emails instead of sending them'),
  47     )
  48
  49     def __init__(self):
  50         super(Command, self).__init__()
  51         self.sent = self.failed = None
  52         self.dummy = None
  53
  54     def handle(self, *args, **options):
  55         translation.activate('pl')
  56         self.dummy = options['dummy']
  57         for target in ['to_teachers', 'to_students']:
  58             if options[target]:
  59                 self.sent = 0
  60                 self.failed = 0
  61                 getattr(self, 'handle_' + target)(*args, **options)
  62
  63     def handle_to_students(self, *args, **options):
  64         self.stdout.write('>>> Sending results to students')
  65         subject = 'Wyniki I etapu Olimpiady Cyfrowej'
  66
  67         for submission in get_submissions():
  68             if options['only_to'] and submission.email != options['only_to']:
  69                 continue
  70             final_result = submission.final_result
  71             if final_result < minimum:
  72                 template = 'results_student_failed.txt'
  73             else:
  74                 template = 'results_student_passed.txt'
  75             message = render_to_string('wtem/' + template, dict(final_result=submission.final_result))
  76             self.send_message(message, subject, submission.email)
  77
  78         self.sum_up()
  79
  80     def handle_to_teachers(self, *args, **options):
  81         self.stdout.write('>>> Sending results to teachers')
  82         subject = 'Wyniki I etapu Olimpiady Cyfrowej'
  83
  84         submissions_by_contact = defaultdict(list)
  85
  86         for submission in get_submissions():
  87             if options['only_to'] and submission.contact.contact != options['only_to']:
  88                 continue
  89             submissions_by_contact[submission.contact.contact].append(submission)
  90
  91         for contact_email, submissions in submissions_by_contact.items():
  92             message = render_to_string('wtem/results_teacher.txt', dict(submissions=submissions))
  93             self.send_message(message, subject, contact_email)
  94
  95         self.sum_up()
  96
  97     def sum_up(self):
  98         self.stdout.write('sent: %s, failed: %s' % (self.sent, self.failed))
  99
 100     def send_message(self, message, subject, email):
 101         self.stdout.write('>>> sending results to %s' % email)
 102         if self.dummy:
 103             self.stdout.write(message)
 104             self.sent += 1
 105             return
 106         try:
 107             send_mail(subject=subject, body=message, to=[email])
 108         except BaseException, e:
 109             self.failed += 1
 110             self.stdout.write('failed sending to: ' + email + ': ' + str(e))
 111         else:
 112             self.sent += 1
 113             self.stdout.write('message sent to: ' + email)