ActiveRecord RecordNotFound本地化

我有足够的理由告诉用户更多信息:

exception.message.match /^Couldn't find (\w+) with (id=([\S]*))?/
msg = t 'activerecord.exceptions.not_found', klass: $1, id: $3

既然我想要捷克的交易:

cs:
  activerecord:
    exceptions:
      not_found: "Nelze nalézt %{klass} s id=%{id}"

..什么时候硬编码?唯一的方法是硬去编码

YAML配置中的另一种方式:

en:
 activerecord:
   exceptions:
     not_found: "%{model_name} not found"

您也可以为模型名称设置复数形式,添加如下内容:

en:
  activerecord:
    models:
      user:
        one: Dude
        other: Dudes

您可以在应用程序控制器中捕获RecordNotFound异常并返回本地化消息。通过这种方式,您还可以更改404的默认行为:

class ApplicationController < ActionController::Base

  rescue_from ActiveRecord::RecordNotFound, :with => :not_found

  private

    def not_found
      render :json => { :message => I18n.t('exception.record_not_found') },
             :status => :not_found
    end

end