Question

我在rails中有一个控制器操作，用于检查事务的当前braintree状态是否为＆＃34; submitted_for_settlement＆＃34;或＆＃34;授权＆＃34;然后无效交易，但如果状态是＆＃34;已解决＆＃34;然后退款交易。不知何故，控制器排除所有交易，而不是像我想要的那样工作。以下是我的代码示例：

@transaction = Braintree::Transaction.find(@id)
if @transaction.status == "authorized" || "submitted_for_settlement" 
  @result = Braintree::Transaction.void(@id)       
elsif @transaction.status == "settled"
   @result = Braintree::Transaction.refund(@id)            
end  


if @result.success?  
@order.update(status: "voided")
 redirect_to orders_path, notice: "transaction successfully voided  "
elsif @result.transaction

 redirect_to orders_path, alert: "transaction could not be cancelled code: #{@result.transaction.processor_response_code} text: #{@result.transaction.processor_response_text}"

else
      errors = @result.errors.map { |error| "Error: #{error.code}: #{error.message}" }
      flash[:error] = errors
      redirect_to orders


end

我收到错误的交易已解决，说＆＃34;交易只有在获得授权或提交后才能无效。但所有经过授权和提交结算的交易都是正确的。

更令人不安的是，即使我收到错误并且braintree结算的交易保持不变，控制器也会使数据库中的状态无效。

为什么我会收到此错误？

Answer 1

更改行

if @transaction.status == "authorized" || "submitted_for_settlement"

到

@transaction.status == "authorized" || @transaction.status == "submitted_for_settlement"

由于==的优先级高于||，因此@transaction.status == "authorized" || "submitted_for_settlement"相当于(@transaction.status == "authorized") || "submitted_for_settlement"。因此，如果状态为“已授权”，则此表达式返回true，否则返回字符串"submitted_for_settlement"，这在Ruby中也被认为是真实的。

我建议为Braintree::Transaction定义一些方法：

class Braintree::Transaction
  %w(authorized submitted_for_settlement settled).each do |status|
    define_method("#{status}?") do
      self.status == status
    end
  end
end

然后在您的控制器中

if @transaction.authorized? || @transaction.submitted_for_settlement?
  # ...
elsif @transaction.settled?
  # ...
end

Rails条件逻辑不起作用

1 个答案: