Session Variable in Application.rb

I'm having a problem referencing the session variable from a class
within the application.rb file.

undefined local variable or method `session' for #<Turnrun:
0x2abc20195440 @runreport=[], @turnstotake="5">

I'm not sure what i'm doing wrong or why this error would occur...does
anyone have any ideas?

Sounds like you're calling session from an object other that the
controller. That doesn't work. showing a little more code might allow
a more informative answer.