End of month notification

[OndrejVicar]

At the end of a month, hodoor should notify it's users about a need to assign not-assigned hours to projects via email.

• Should send notification 2 work-days before the end of the month.
• Should send notification 1st day of a new month and every next day until user does not assign hours.
• It should notify only if the user has unassigned hours.
• Notification should contain a link to correct session page.
• There should be some way to disable notifications for specific users (only administrator should have rights to do that)

[DavidKozina]

Hodoor runs on Linux or Windows? Can we use Cron? Time scheduled tasks are main problem of this...

[DavidKozina]

Also for disabling notification I need Profile model from pull request #96

[OndrejVicar]

There are plenty of options to do that.

https://stackoverflow.com/questions/573618/django-set-up-a-scheduled-job

Probably the most popular is celery but a lot of people have problem with it. I would also like to avoid to use cron task (atleast until we got full docker build).

Nice topic: https://stackoverflow.com/questions/46517613/python-task-queue-alternatives-and-frameworks

I think i like https://dramatiq.io/

[DavidKozina]

I found lots of solutions too. The best what I found is https://github.com/kraiz/django-crontab...

But the dramatiq looks good so far. I chek it out. https://github.com/Bogdanp/django_dramatiq looks nice.

[DavidKozina]

Some complications:

• For Dramatiq we need RabbitMQ (messages broker) https://www.rabbitmq.com/
• Django_dramatiq does not work with our old version of Django

[DavidKozina]

For me it seems to be more easy use cron and django_crontab than Dramatiq and RabbitMQ(or another message broker). One reason is than we cannot use django_dramatiq and communication between djangpo and dramatiq is complicated.

Django_crontab is quite simple and clear.

[OndrejVicar]

Ok django-crontab looks fine.