Rails 5.1 designe\u invitable gem忽略i18n翻译文件

我已经添加了designe\u invitable gem和一个定制邮件器。它可以正常工作,正常的设计电子邮件(如确认\u指令)可以正确读取i18n文件,但邀请\u指令不能正确读取。

这是设计图。ENyml:

en:
  devise:
    mailer:
      confirmation_instructions:
        subject: "Hi %{first_name}, please confirm your email to activate your account"
      invitation_instructions:
        subject: "%{first_name} has invited you to join their team!"
        hello: "Oi"
        someone_invited_you: "Pig"

自定义邮件程序类:

class CustomDeviseMailer < Devise::Mailer

  def confirmation_instructions(record, token, opts={})
    custom_options(record, opts, :confirmation_instructions)
    super
  end

  def invitation_instructions(record, token, opts={})
    custom_options(record, opts, :invitation_instructions)
    super
  end  

  private

  def custom_options(record, opts, key)
    opts[:subject] = I18n.t('subject', scope: [:devise, :mailer, key], first_name: record.first_name)
  end

end

如果我将invitation\u instructions方法更改为:

  def invitation_instructions(record, token, opts={})
    custom_options(record, opts, :invitation_instructions)
    opts[:subject] = "TEST"
    super
  end  

然后邀请电子邮件主题正确更改为“测试”。

那么为什么它不读取i18n文件呢?

笔记

我还生成了默认的邀请视图,该视图也没有读取i18n文件。例如,默认视图的第一行是:

\应用程序\视图\设计\邮件\邀请\说明。html。雇员再培训局

<p>
  <%= t("devise.mailer.invitation_instructions.hello", email: @resource.email) %>
</p>

它应该从i18n文件中呈现“Oi”,但它会呈现默认的“Hello”。