admin_policy.rb

class AdminFooPolicy < ApplicationPolicy
  class Scope
    attr_reader :user, :scope

    def initialize(user, context)
      @user = user
      @scope = context.record
    end

    def resolve
      scope.not_cancelled?
    end
  end
	
  def initialize(user, context)
    @user = user
    @record = context.record
  end
	
  def show?
    !record.cancelled?
  end
end