gistfile1.txt

class DrugFinder
  attr_accessor :user, :scope
  def initialize(user, scope = Drug.all)
    @user = user
    @scope = scope
  end
  
  def drugs
    if user.is_admin?
      drugs_for_admin
    else
      drugs_for_regular_user
    end
  end
  
  private
  
  def drugs_for_admin
    scope
  end
  
  def drugs_for_regular_user
    scope.where(province_id: user.province_id)
  end
end

# MEANWHILE, IN THE CONTROLLER

def index
  @drugs = DrugFinder.new(current_user).drugs
end