Option to add Tag on Event

[RignonNoel]

As an administrator it's sometime complicated to manage the list of events since there is a LOT of events.
It could be nice to add Tag on Event to group them the way we want and even filter them by Tag

Expected behavior

• Administrators can create Tag
• Administrators can remove Tag
• Administrators can update Tag
• Administrators can link Tag to Event
• Administrators can filter Event by Tag
• Administrators can list Tag (to know which one they can use to filter with)

Current behavior

There is not way to group Event for the moment, it's a new feature

Potential solution

It could be nice to use a writable nested serialzation into EventSerializer to easily update the Tag without having to do multiple calls:

• Solution 1 (existing package): https://github.com/beda-software/drf-writable-nested
• Solution 2 (homemade): https://django.cowhite.com/blog/create-and-update-django-rest-framework-nested-serializers/

It could be nice also to have the number of event using each tag when listing the Tag, so Front-End people can do a nice display with a good UX ;)

[yanicolivier]

I'm on this one !