add cronjob for sending agenda mail 48 hours before the next meeting

fet2020/fet2020/settings.py

@@ -59,6 +59,8 @@ else:
 
 ALLOWED_HOSTS = ["127.0.0.1", env('HOST_NAME')]
 
+HOST_NAME = env('HOST_NAME')
+
 
 DATA_UPLOAD_MAX_MEMORY_SIZE = 1024 * 1024 * 1024
 # Application definition
@@ -77,6 +79,7 @@ INSTALLED_APPS = [
     'ckeditor_uploader',
     'easy_thumbnails',
     'rest_framework',
+    'django_crontab',
     'django_filters',
     'django_static_jquery_ui',
     'posts.apps.PostsConfig',
@@ -212,6 +215,7 @@ CKEDITOR_CONFIGS = {
     }
 }
 
+# THUMBNAIL
 THUMBNAIL_ALIASES = {
     '': {
         'avatar': {'size': (50, 50), 'crop': True},
@@ -219,9 +223,20 @@ THUMBNAIL_ALIASES = {
     },
 }
 
+# ETHERPAD SETTINGS
 ETHERPAD_CLIENT = {
     'url': "http://localhost:9003",
     'exturl': "https://etherpad2.2020.fet.at/",
-    'apikey': "/srv/andis_test/etherpad_test2/etherpad-lite/APIKEY.txt"
-
+    'apikey': "/srv/andis_test/etherpad_test2/etherpad-lite/APIKEY.txt",
 }
+
+# DJANGO MAIL
+EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
+EMAIL_HOST = 'buran.htu.tuwien.ac.at'
+EMAIL_PORT = 587
+EMAIL_USE_TLS = True
+
+# CRON JOBS
+CRONJOBS = [
+    ('0 16 * * *', 'posts.cronjobs.check_to_send_agenda_mail'),
+]

fet2020/posts/cronjobs.py

@@ -0,0 +1,23 @@
+# HOW TO ADD CRONJOBS
+# write a cronjob function
+# add cronjob to fet2020/settings.py
+# add cronjob with cmd 'fet2020/manage.py crontab add'
+
+from django.utils import timezone
+
+from .models import FetMeeting
+from .mails import send_agenda_mail
+
+from datetime import timedelta
+
+
+def check_to_send_agenda_mail():
+    agenda_date = timezone.now().date() + timedelta(days=2)
+    next_meeting = FetMeeting.objects.filter(event_start__date=agenda_date).first()
+
+    if next_meeting and next_meeting.has_agenda:
+        send_agenda_mail(
+            self.event_start.date().strftime("%d.%m.%Y"),
+            self.event_start.time(),
+            self.slug,
+        )

fet2020/posts/mails.py

@@ -0,0 +1,17 @@
+from django.conf import settings
+from django.core.mail import send_mail
+
+
+def send_agenda_mail(date, time, slug):
+    msg = "Liebe Alle,\n\n"                                                             \
+        "wir haben am " + str(date) + " um " + str(time) + " wieder Sitzung.\n"         \
+        "du hast noch bis morgen Zeit, weitere Themen auf die Agenda zu schreiben: "    \
+        + settings.HOST_NAME + '/posts/' + str(slug) + ".\n\n"                          \
+        "LG deine FET"
+
+    send_mail(
+        subject = 'Test - Agenda der FET Sitzung von ' + str(date),
+        message = msg,
+        from_email = 'patrick@fet.at',
+        recipient_list = ['all@fet.at', ],
+    )

fet2020/requirements.txt

@@ -1,17 +1,18 @@
-django==3.1.*
+django==3.1.2
 django-ckeditor==6.0.0
+django-crontab==0.7.1
 django-environ==0.4.5
 django-filter==2.3.0
 django-static-jquery-ui==1.12.1.1
 django-taggit==1.3.0
 djangorestframework==3.12.1
+configparser==5.0.1
 docutils==0.16
 easy-thumbnails==2.7.0
-configparser
 etherpad-lite==0.5
 #mysql-python
+ghostscript==0.6
 ldap3==2.8.1
 mysqlclient==2.0.1
 Pillow==7.2.0
-ghostscript==0.6