Better User deletion

[ericholscher]

With #3175 we now have a way for users to mark themselves as wanting to be deleted, now we need to actually delete them. This could be done inline during delete, or as a batch job that runs after the web view returns.

We want to actually delete the User instance, but we need to confirm a couple things:

• Projects that the user only owns are deleted. This is a M2m, so we need to either remove them if there are multiple users, or delete the project if they are the only owner, so we don't end up with orphaned projects.

[ericholscher]

@agjohnson Anything else you can think of that attach to users? Looking at the code I see:

• FK: Comments - will be deleted
• FK: Bookmarks - will be deleted
• M2M: Oauth connections - Believe these might need to be manually deleted (same logic, if only person in Org, delete, otherwise remove user)

[ericholscher]

We should also add a guide entry or something that is Googleable, that shows how to do this (http://docs.readthedocs.io/en/latest/guides/index.html)

[agjohnson]

Projects is the big one. There probably isn't a good reason why oauth models shouldn't be cascading if they aren't already -- those are all single user relations, but might have to be m2m for some other reason.

[shacharoo]

Hey there,
The currently implemented "delete" feature is misleading.
I wanted to change my username, but I saw that it's impossible, so i went on and deleted (my empty) account thinking that I'd be able to create a new one with a new username. Nowhere does it say that the account is only "disabled".
Now I can't re-register because my email is in use (because the account wasn't actually deleted), nor can I reactivate the account. Something needs to be done here 😄

And on a personal note, If someone could hack the DB a bit and reactivate my account in the meantime, it would be delightful 🙏 Is there a support email anywhere? Couldn't find it.

Thanks,
Shachar.

[safwanrahman]

Hey @shacharoo, Apologies for the problem you are facing. Can you open a new issue about your problem so that we can ask out Operation teams to change the email or do other necessary things for you?
In the meantime, I am hoping to create a patch ASAP that will cover your use case.

[shacharoo]

Will do @safwanrahman, thanks!

Opened #3189 .