無法訪問控制器變量模型

Question

我有以下控制器

class PaypalOrdersController < Spree::BaseController 

def new 
    @paypal_order = PaypalOrder.new 
end 

def create 
    @order1 = current_order 
    @paypal_order = PaypalOrder.new(params[:paypal_order]) 
    if @paypal_order.save 
     if @paypal_order.purchase 
     render :action => "success" 
     else 
     render :action => "failure" 
     end 
    else 
     render :action => "new" 
    end 
end 
end 

，對應的模式是：

class PaypalOrder < ActiveRecord::Base 
    require 'paypal_payment' 
    belongs_to :order 

    attr_accessor :card_number, :card_verification 

    validate :validate_card, :on => :create 

    def purchase 
    orderHash = @order1.clone 
    paypalHash = @paypal_order.clone 
    PaypalPayment.new(orderHash, paypalHash) 
    end 

    private 
    def validate_card 
    #some code 
    end 

    def credit_card 
    #some code 
    end 

end 

當觸發購買方法，我發現了錯誤cannot clone nil class。在調試時我發現@order1和@paypal_order兩者在purchase方法中都是零。我不知道爲什麼會發生這種情況。請有人解釋。

感謝

Answer 1

控制器：

PaypalOrder.purchase @order1, @paypal_order 

型號：

def self.purchase order, paypal_order 
orderHash = order.clone 
paypalHash = paypal_order.clone 
PaypalPayment.new(orderHash, paypalHash) 
end 

編輯： How do you pass data from a controller to a model with Ruby on Rails?

Answer 2

試試這個

控制器

if @paypal_order.purchase @order1 

模型

def purchase order1 
    orderHash = order1.clone 
    paypalHash = self.clone   
    PaypalPayment.new(orderHash, paypalHash) 
end