Zuora rate plan

  def set_current_plan(subscription, products)
    plans = subscription[:ratePlans]
    if plans.length == 1 # if only one plan then it's the active plan
      current_plan = plans[0]
      current_product_name = current_plan[:productName].downcase
    else
      current_plan = plans.select{|plan| plan[:lastChangeType].downcase == "add" } # select the plan which was added rather than removed
      current_product_name = current_plan[0][:productName].downcase
    end
    subscription_period = plans[0][:ratePlanName].downcase
    current_product = products[current_product_name.to_sym]

    @current_rate_plan = current_product[:productRatePlans][subscription_period.to_sym]
  end