未定義的方法'總'爲零：NilClass NoMethodError在ReservationsController＃結帳

我目前卡住無法弄清楚如何從一個控制器獲得參數添加到下一個控制器。艾夫試過render和redirect_to，我仍然無法讓這個工作！未定義的方法'總'爲零：NilClass NoMethodError在ReservationsController＃結帳

我的繼承人控制器和視圖 - 形式觀點得到我checkout controller -I要使用相同的reservation.id兩個結賬，並創建控制器的動作，這樣我就可以在結賬控制器調用reservation.total。

如何才能獲得創建控制器上的總數，希望結束並共享結帳控制器？

錯誤日誌：

NoMethodError (undefined method `total' for nil:NilClass): 
    app/controllers/reservations_controller.rb:45:in `checkout'

保留控制器：

def checkout 




nonce = params[:payment_method_nonce] 
result = Braintree::Transaction.sale(
    :amount => @reservation.total, 
    :payment_method_nonce => nonce, 
    :options => { 
    :submit_for_settlement => true 
    } 
) 
if result.success? 
    puts "success!: #{result.transaction.id}" 
elsif result.transaction 
    puts "Error processing transaction:" 
    puts "code: #{result.transaction.processor_response_code}" 
    puts "text: #{result.transaction.processor_response_text}" 
else 
    p result.errors 
end 


end 



def create 

#!/usr/bin/env ruby 


    reviser = Reviser.find(params[:reviser_id]) 
     @reservation = current_user.reservations.create(reservation_params) 

     if @reservation.total > 0 

      @token = Braintree::ClientToken.generate 


     elsif @reservation.total == 0 
      @reservation.update_attributes status: true 
      redirect_to @reservation.reviser.user, alert: "Writing Request Success" 


     else 
      redirect_to @reservation.reviser, alert: "Oops, something went wrong..." 
     end 




    end

創建HTML：

<p>create</p> 
 

 

 
<form id="checkout" method="post" action="/checkout"> 
 
    <div id="payment-form"></div> 
 
    <input type="submit" value="Pay"> 
 
</form> 
 

 
<script src="https://js.braintreegateway.com/js/braintree-2.26.0.min.js"></script> 
 
<script> 
 
// We generated a client token for you so you can test out this code 
 
// immediately. In a production-ready integration, you will need to 
 
// generate a client token on your server (see section below). 
 
// var clientToken = "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"; 
 

 

 

 
var clientToken = "<%= @token %>"; 
 

 
braintree.setup(clientToken, "dropin", { 
 
    container: "payment-form" 
 
}); 
 
</script>

post 'checkout', to: 'reservations#checkout' 
get 'checkout', to: 'reservations#checkout'

來源

2016-07-16 Michael Lombardo

不能只是你找到PARAMS預訂：ID？在結帳控制器？ –

你也在@reviser在def創建 –

@reservation = Reservation.find（params [：id]）給我一個不同的錯誤：無法找到保留與'id'= –

我建議您將結帳方法作爲成員方法，即在URL中傳遞預留的ID。

post 'checkout/:id', to: 'reservations#checkout', :as => 'reservation_checkout'

通過這樣做，您將能夠找到保留喜歡。

@reservation = Reservation.find(params[:id]) #so you will not get the error undefined method `total' for nil:NilClass

我想知道你爲什麼不使用html.erb

<%= form_tag reservation_checkout_path(@reservation) %> 
    #your fields 
<% end %>

來源

2016-07-16 07:16:55 power

我試過表單標籤，它似乎通過'後'保留/結帳'，以''保留＃結帳'，但該ID仍然不會解決。我嘗試了其他人，他們也沒有工作。我得到無法找到保留與'身份證'= ......當我使用結帳/：身份證...當我做了reservation_checkout_path一個URL結帳後的ID。像這樣：http：// localhost：3000/reservations/checkout.338 –

我想你首先需要通過rails guide教程http://guides.rubyonrails.org/getting_started.html#creating-a-新的鐵路項目，這將明確清除有關路由和所有的概念。希望有所幫助！ – power

未定義的方法'總'爲零：NilClass NoMethodError在ReservationsController＃結帳

回答

相關問題