[Rails] Duplicate method in application_controller and application_helper

[Walter Lee Davis]

I have a method:

  def current_practice
    if session[:impersonating]
      Practice.find session[:impersonating]
    else
      current_user.practice
    end
  end
It is identical in both controller and helper. How could I DRY this up  
so I only need maintain it in one place?

I already have the line

helper:all

at the top of my ApplicationController, but when I commented out the  
current_practice in the controller, the one from the helper didn't  
step in. Maybe I'm misunderstanding what that line is meant to do.

Walter

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