Imagine the following situation:
model Person, with the default name, address, location data. Person has either one or no superior which in turn is also a Person model instance.
I would expect something like has_one :superior, :class_name => "Person"
but where would I place the belongs_to line that goes with it and what arguments do I need to supply? And what kind of foreign keys do I need to specify in my migration?
I would like for the following to work:
bossman = Person.new :name => "Mr. Bossman" person1 = Person.new :name => "John" person2 = Person.new :name => "Jane"
person1.superior = bossman person2.superior = bossman
person1.superior.name # => "Mr. Bossman"
I wonder what kind of columns I need for this in my Persons table manually specified and which columns are virtual. I experimented a bit already and got something quite similar, but for some reason I was able to modify the person1.superior_id independantly of the person1.superior object. I'd rather have nothing to do with the _id and shield it from being used directly.
