$ rails c
Loading development environment (Rails 4.2.1)
irb(main):001:0> string = "Fulfiller::Jobs::SunFrog::SendOrders"
=> "Fulfiller::Jobs::SunFrog::SendOrders"
irb(main):002:0> string.split('::').inject(Object, &:const_get)
NameError: uninitialized constant SunFrog::SendOrders
from (irb):2:in `const_get'
from (irb):2:in `each'
from (irb):2:in `inject'
from (irb):2
irb(main):003:0> string.constantize
=> Fulfiller::Jobs::SunFrog::SendOrders
https://github.com/chanks/que/blob/master/lib/que/job.rb#L140 -- using const_get doesn't work perfectly with Rails's autoloading (I also have a top-level SunFrog constant).