ruby – ActiveJob :: SerializationError – 不支持的参数类型

ActiveJob::SerializationError (Unsupported argument type: Time):
ActiveJob::SerializationError (Unsupported argument type: DateTime):

我知道ActiveJob不会采用Time / DateTime对象,因为某些排队系统不处理这些类型.所以我试图序列化的对象如下：

card = Card.first
=> #<Card id: 256,title: "quis",description: "Sunt corporis error laudantium veritatis impedit r...",due_date: "2016-12-15 12:00:00",slug: "quis",created_at: "2016-11-30 17:00:01",updated_at: "2016-11-30 17:00:01",list_id: 26,position: 0,period_type: "hours",period_length: 0.0,user_id: 1>

当我跑：

card.as_json
=> {"id"=>256,"title"=>"quis","description"=>"Sunt corporis error laudantium veritatis impedit repellat quasi.","due_date"=>Wed,15 Dec 2016 12:00:00 UTC +00:00,"slug"=>"quis","created_at"=>Wed,30 Nov 2016 17:00:01 UTC +00:00,"updated_at"=>Wed,"list_id"=>26,"position"=>0,"period_type"=>"hours","period_length"=>0.0,"user_id"=>1}

created_at,updated_at和due_date都是ActiveSupport :: TimeWithZone的实例

我试图通过在初始化程序中使用以下代码来覆盖它,我在另一个SO帖子中找到但是它没有帮助：

class ActiveSupport::TimeWithZone
    def as_json(options = {})
        strftime('%Y-%m-%d %H:%M:%S')
    end
end

当as_json在对象上运行时,任何人都可以帮助将日期作为字符串吗？