sendNotifications: Use a template for the email message

tasks/management/commands/sendNotifications.py

@@ -3,7 +3,10 @@ import smtplib
 from email.message import EmailMessage
 from itertools import groupby
 
+from django.core.mail import send_mail
 from django.core.management.base import BaseCommand, CommandError
+from django.template import loader
+
 from tasks.models import Tool, Task, Event, Reminder
 
 
@@ -25,12 +28,9 @@ class Command(BaseCommand):
             if reminder.should_remind:
                 yield reminder
 
-    def _format_reminder_lines(self, reminders):
-        for reminder in reminders:
-            next_date = reminder.task.next_recurrence.strftime('%Y-%m-%d')
-            yield f"  - {reminder.task.name} - {next_date}"
-
     def handle(self, *args, **options):
+        template = loader.get_template('tasks/notificationEmail.txt')
+
         reminders_per_user = {
             user: sorted(reminders, key=lambda r: r.task.next_recurrence)
             for user, reminders in groupby(self._active_reminders(), lambda r: r.user)
@@ -40,10 +40,7 @@ class Command(BaseCommand):
             self.stdout.write(self.style.SUCCESS(
                 f'Sending notification for {len(reminders)} task(s) to {user}'))
 
-            contents = "The following tasks are upcoming or overdue:\n\n" + \
-                ('\n'.join(self._format_reminder_lines(reminders)))
-
             self._send_email(
                 user.email,
                 f'[CMS Tool Maintenance] {len(reminders)} tasks are upcoming or overdue!',
-                contents)
+                template.render({'reminders': reminders}).strip())

tasks/templates/tasks/notificationEmail.txt

@@ -0,0 +1,4 @@
+The following tasks are upcoming or overdue:
+{% for reminder in reminders %}
+   - {{ reminder.task.name }} {{ reminder.task.next_recurrence|date }}
+{% endfor %}