Reassign a deactivated user's tasks to a group

Hello,

I've inherited an existing setup that is functional and generally works for our needs. However, since Bonita doesn't provide any built-in functionality to reassign tasks that are currently assigned to newly-deactivated users, this is something I'm trying to build out.

I've done some research into this but can't find a definitive answer on how to go about it. Ideally, when a user is deactivated, I would like to "hook" into this process so that the following operations can be done:

• Retrieve all tasks that are currently assigned to the user that was just deactivated;
• Assign each of these tasks to another group (not an individual user) in the organization so that users in that new group can take over these tasks.

I've read about actor filters but I'm not sure how I would hook into that when a user is deactivated... or if I even need to implement a filter.

I'm new to Bonita so I'm a bit lost here. Much appreciated if someone can point me in the right direction!