4ce93aee52
**Before** - any user with workpace_members permission was able to remove a user from their workspace. This triggered the deletion of workspaceMember + of userWorkspace, but did not delete the user (even if they had no workspace left) nor the roleTarget (acts as junction between role and userWorkspace) which was left with a userWorkspaceId pointing to nothing. This is because roleTarget points to userWorkspaceId but the foreign key constraint was not implemented - any user could delete their own account. This triggered the deletion of all their workspaceMembers, but not of their userWorkspace nor their user nor the roleTarget --> we have orphaned userWorkspace, not technically but product wise - a userWorkspace without a workspaceMember does not make sense So the problems are - we have some roleTargets pointing to non-existing userWorkspaceId (which caused https://github.com/twentyhq/twenty/issues/14608 ) - we have userWorkspaces that should not exist and that have no workspaceMember counterpart - it is not possible for a user to leave a workspace by themselves, they can only leave all workspaces at once, except if they are being removed from the workspace by another user **Now** - if a user has multiple workspaces, they are given the possibility to leave one workspace while remaining in the others (we show two buttons: Leave workspace and Delete account buttons). if a user has just one workspace, they only see Delete account - when a user leaves a workspace, we delete their workspaceMember, userWorkspace and roleTarget. If they don't belong to any other workspace we also soft-delete their user - soft-deleted users get hard deleted after 30 days thanks to a cron - we have two commands to clean the orphans roleTarget and userWorkspace (TODO: query db to see how many must be run) **Next** - once the commands have been run, we can implement and introduce the foreign key constraint on roleTarget Fixes https://github.com/twentyhq/twenty/issues/14608