I am using concerns for my rails application. I've different kind of
users so I have made a "loggable.rb" concern.
In my concern I have
because every of my user that will include the concern will have an
association with auth_info table.
The problem is, what foreign keys I need to put in my auth_info table?
I've 3 kind of users:
If I had only customer, in my table scheme I would have put the field
but in my case?