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from django.core.management.base import BaseCommand
from email.mime.image import MIMEImage
from django.contrib.staticfiles.storage import staticfiles_storage
from django.utils.timezone import now
from django.contrib.auth import get_user_model
from apps.notification.models import UserNotification
from apps.notification.utils import send_email
from apps.payment.models import Payment, SchoolPayment, CoursePayment
User = get_user_model()
class Command(BaseCommand):
help = 'Send certificates at the end of subscription'
def add_arguments(self, parser):
# Named (optional) arguments
parser.add_argument(
'--email',
dest='email',
help='Test email',
)
parser.add_argument(
'--dry-run',
action='store_true',
dest='dry_run',
help='Only display emails',
)
def handle(self, *args, **options):
path_pattern = 'img/user-certificates/%d.jpg'
if options.get('email'):
file = open(staticfiles_storage.path(path_pattern % 1), 'rb')
try:
send_email('Грамота от Lil School', options['email'], 'notification/email/certificate.html',
attachments=[(file.name, file.read(), 'image/jpeg')])
except:
pass
else:
print('Email has been sent')
finally:
file.close()
return
today = now().date()
users = SchoolPayment.objects.filter(date_end=today, add_days=False).values_list('user_id', flat=True)
user_notifications_qs = UserNotification.objects.filter(user_id__in=users)
user_notifications = {un.user.id: un for un in user_notifications_qs}
notified_users = user_notifications_qs.filter(certificate_last_email__date=today).values_list('user_id', flat=True)
for user_id in users:
if user_id in notified_users:
continue
un = user_notifications.get(user_id, UserNotification(user_id=user_id))
print(un.user.email)
if options.get('dry_run'):
continue
un.certificate_number = un.certificate_number + 1 \
if un.certificate_number and staticfiles_storage.exists(path_pattern % (un.certificate_number + 1)) \
else 1
file = open(staticfiles_storage.path(path_pattern % un.certificate_number), 'rb')
try:
send_email('Грамота от Lil School', un.user.email, 'notification/email/certificate.html',
attachments=[(file.name, file.read(), 'image/jpeg')])
except:
print('Not OK')
continue
finally:
file.close()
un.certificate_last_email = now()
un.save()