Simplify multiple nil checking in Rails

Question

How should I write:

if @parent.child.grand_child.attribute.present?
  do_something

without cumbersome nil checkings to avoid exception:

Answer 1

For fun, you could use a fold:

[:child, :grandchild, :attribute].reduce(@parent){|mem,x| mem = mem.nil? ? mem : mem.send(x) } 

but using andand is probably better, or ick, which I like a lot and has methods like try and maybe.