我已经找出问题所在。plugin.rb 的代码需要放在 after_initialize 内部:
after_initialize do
require_dependency 'user_notifications'
module ::UserNotificationsOverride
def send_notification_email(opts)
Rails.configuration.paths["app/views"].unshift(File.expand_path("../templates", __FILE__))
super(opts)
end
end
class ::UserNotifications
prepend ::UserNotificationsOverride
end
end
现在对我来说运行正常。感谢分享这个方法!