ruby-on-rails - 如何从 Rails 中的 float 中去除小数点

Question

我想在将价格发送到表单/ strip 之前去掉价格中的小数点。我可以使用其他方法来执行此操作吗？

在我的product.rb模型中，我有:

def monetize_amount
    self.price.to_s.delete(".").to_f
end

在费用 Controller 中我有:

def create
  @product = Product.find(params[:id])
    # Amount in cents
  **@amount = @product.monetize_amount**

  customer = Stripe::Customer.create(
   :email => '<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="701508111d001c15300304021900155e131f1d" rel="noreferrer noopener nofollow">[email protected]</a>',
   :card  => params[:stripeToken]
  )

  charge = Stripe::Charge.create(
   :customer    => customer.id,
   :amount      => @amount,
   :description => 'Rails Stripe customer',
   :currency    => 'usd'
  )

 rescue Stripe::CardError => e
 flash[:error] = e.message
 redirect_to charges_path
end

Answer 1

就像argentum47所说的那样。将其转换为以分为单位的整数值。

class Product < AR::Base
  def price_in_cents
    (price * 100).to_i
  end
end

然后你可以这样做:

charge = Stripe::Charge.create(
   :customer    => customer.id,
   :amount      => @product.price_in_cents,
   #…