Question

我正在构建一个应用程序来处理不同服务的不同类型的交易，例如订阅，礼品订阅和购买。

礼品交易和activemerchant存在问题。我会简要介绍一下它的工作原理。

用户创建礼品订阅并为其填写数据，将其存储在数据库中，然后显示回用户以便在自定义“show_view”中查看，然后用户继续输入信用卡信息。单独的表单，当他提交数据时，调用控制器的方法来处理交易，这里是我遇到问题的地方。

这是gift_subscription.rb模型

    def gift_purchase
    response = GATEWAY.purchase(price, credit_card, gift_purchase_options)
    GiftTransaction.create!(:action => "gift_purchase", :amount => price, :response => response)
    response.success?
  end
  private
  def gift_purchase_options
    {
        :ip => ip_address,
        :billing_address => {
            :name     => name + last_name,
            :address1 => address1,
            :city     => city,
            :state    => state,
            :country  => "Mexico",
            :zip      => zip
        }
    }
  end

  def validate_card
    unless credit_card.valid?
      credit_card.errors.full_messages.each do |message|
        errors[:base] << message
      end
    end
  end

  def credit_card
    @credit_card = ActiveMerchant::Billing::CreditCard.new(
        :brand              => card_type,
        :number             => card_number,
        :verification_value => card_verification,
        :month              => card_expires_on.month,
        :year               => card_expires_on.year,
        :first_name         => name,
        :last_name          => last_name
    )

这是gift_subscription_controller.rb

def review
    @gift_subscription = GiftSubscription.find(params[:id])
  end

  def edit_review
    @gift_subscription = GiftSubscription.find(params[:id])
  end

  def update_review
  @gift_subscription = GiftSubscription.find(params[:id])

    respond_to do |format|
      if @gift_subscription.update_attributes(params[:gift_subscription])
        format.html { redirect_to "gift_subscriptions/review/#{@gift_subscription.id}", :notice => 'Gift subscription was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render :action => "edit_review" }
        format.json { render :json => @gift_subscription.errors, :status => :unprocessable_entity }
      end
    end
  end

  def do_gift_transaction
    @gift_subscription = GiftSubscription.find(params[:id])
    if @gift_subscription.gift_purchase
        redirect_to '/thank_you'
    else
        redirect_to "/gift_subscriptions/#{@gift_subscription.id}/failed_transaction"
    end
  end

  def failed_transaction
    @gift_subscription = GiftSubscription.find(params[:id])
    @gift_transactions = @gift_subscription.gift_transactions
  end

  def transaction_details
    @gift_subscription = GiftSubscription.find(params[:id])
  end

为了使事情更加清晰，从控制器创建方法，它将用户重定向到审查操作，其中有一个edit_review以防他们想要更改某些内容，然后他们转到transaction_details，在那里他们输入信用卡信息，最后是方法调用do_gift_transaction来实际执行事务。

我得到的错误是以下

NoMethodError in GiftSubscriptionsController#do_gift_transaction

undefined method `month' for nil:NilClass
Rails.root: /home/peanut/RubymineProjects/GiftBox

Application Trace | Framework Trace | Full Trace
app/models/gift_subscription.rb:44:in `credit_card'
app/models/gift_subscription.rb:12:in `gift_purchase'
app/controllers/gift_subscriptions_controller.rb:113:in `do_gift_transaction'

我一直在四处寻找，我似乎无法找到为什么它不认识这个月...对于其他订阅我基本上都是相同的模型（一些差异）但它的工作完美。这里的任何帮助将不胜感激。

GiftSubscription模型属性

attr_accessible :response, :name, :last_name, :address1, :address2,:city,
                  :state, :zip, :card_type, :ip_address, :price,
                  :duration, :created_at, :card_expires_on, :card_number,
                  :card_verification, :message

  has_one :gift_transactions, :class_name => "GiftTransaction"
  attr_accessor :card_number, :card_verification
  validate :validate_card, :on => :transaction_details

Answer 1

因此，经过几个小时的敲击，结果很简单......在输入信用卡数据的视图中，应该保存到数据库的字段没有被保存，因为我只有

一个link_to按钮，在调用credit_card方法时继续并执行ergo。

感谢lander16指出这一点。

activemerchant undefined方法'月'

1 个答案: