问题标签 [money-rails]

我money-rails在我的 Rails 应用程序中使用 gem。到目前为止，它一直运行良好，但我最近开始收到以下错误：

我不确定是什么原因造成的或如何解决它。我最近跑步bundle update，所以我猜有些东西已经更新了。我的gemfile样子是这样的：

我的实现如下所示：

正如我之前提到的那样，这已经奏效了，所以我不确定是什么破坏了它。

有任何想法吗？

更新

为了测试我尝试了以下内容。

然后我得到了和以前一样的错误。但如果我尝试：

它似乎工作。我觉得这有点奇怪。

更新

这是我尝试保存记录时的回溯：

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我正在按照教程在一个新项目中使用money-rails。

这是我的迁移文件：

我的模型：

我阅读了money-rails的所有API规范，但我猜不太理解。

如果我运行 rails 控制台并执行 Plan.last.price 它会显示此错误：

我在这里做错了什么？如何为此价格属性设置值？

谢谢

money-rails gem 将抛出以下警告

文档说要设置：

并且，添加：

更新 en.yml 文件是不言自明的。但是，文档并不清楚在哪里设置 Money.locale_backend = :i18n。

这应该在新的初始化程序中吗？

我正在为我的系统中的发票制作 PDF，我希望能够在数据库中存储两位小数的数字。我正在使用MoneyRailsgem 来处理货币，我已经设置precision: 10并scale: 2在数据库级别（我postgres用作我的数据库），但我在逗号后只得到 1 个小数位。为什么？

发票.rb

在 Rails 控制台中，

是否可以在 DB 中存储两位小数的数字，例如20,000.00？我不想在视图中显示 PDF，因此我希望能够将数字放入我的数据库中，因为我从前端应用程序的参数中获取它，而无需在视图中进一步格式化它。

我在下面有这个方法：

例如，它输出：

该formatted_price_for方法如下，它剥离了美分。

我不想剥夺美分，而是想把钱四舍五入并保留货币。所以使用上面的示例输出 -£785.71 -> £786

我怎样才能做到这一点？

我们在我们的应用程序中使用money-railsgem。到目前为止，我们可以使用 4 位小数精度，但我们需要切换到 6。不幸的是，我无法将更高精度的数字存储到 Postgres 中 - 数字在保存之前被四舍五入。

金钱本身似乎可以以更高的精度正常工作

在控制台中测试模型。保存前一切正常。

ActiveRecord 输出表明修剪后的数字实际上正在发送到数据库。（注意 181.12）。

有什么方法可以让money-railsgem 更精确地工作吗？似乎Money gem本身没有更高的精度问题。

我目前正在使用：

money-rails v1.12 rails v6 mongoid v7

我想设置每个模型实例使用的默认货币。

我已经在我的模型中设置了字段，如下所示

field :price, type: Money, with_model_currency: :currency

但是当我尝试创建或获取记录时，我得到了这个错误

如何with_model_currency在 rails mongoid 应用程序中使用该选项？我还能如何在 rails mongoid 应用程序中处理资金？

我在 ActiveAdmin 的索引页上有列：

我在索引页面上使用 gemmoney-rails和:credit_amount方法.format来提高可读性。

但是排序不起作用。我怎样才能使这个列从最大到最小排序，反之亦然？

我将一个应用程序升级到 Rails 6.1.0（从 6.0.3.3，通过创建一个新的 api-only 应用程序，添加 RSpec，然后手动复制所需的文件）。

我在运行 RSpec 时看到以下警告：

我没有改变ApplicationRecord默认的类：

我只在运行 RSpec 时看到此警告。我没有在 Rails 控制台或 Rails 服务器日志中看到它。

这是我的config/database.yml：

关于如何摆脱这种情况的任何建议？

我有两个模型，一个Product::Variant和一个Product::AvailableProduct（属于_to Product::Variant）。他们都有price_cents和cost_per_unit领域。

我正在使用money-rails gem，所以这些实际上是price_cents, price_currency, cost_per_unit_cents, 和cost_per_unit_currency在数据库中。

在Product::Variant模型中，aprice和cost_per_unit是必需的，并且字段不可为空。当我创建 aProduct::AvailableProduct时，我希望priceandcost_per_unit继承自关联Product::Variant记录，并且priceandcost_per_unit为 nil，这意味着不应从Product::Variant. 只有当用户想要覆盖默认值时，这些字段才应该不为零。

我研究过delegate在该方法上使用一个方法Product::AvailableProduct，但似乎我不能有条件地委托。有没有更简化/优雅的方式来做到这一点？