ActiveJob :: SerializationError - 不支持的参数类型:Time/DateTime

Question

我使用Rails 5和ActiveJob来处理后台任务.我试图将序列化的对象传递as_json给我的工作,但我收到以下错误:

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, 30 Nov 2016 17:00:01 UTC +00:00, "list_id"=>26, "position"=>0, "period_type"=>"hours", "period_length"=>0.0, "user_id"=>1}

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

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

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？

Answer 1

请card.to_json改用.它将返回作业将能够接受的JSON字符串.

如果你有逻辑,你只想使用as_json链to_json到调用结束as_json即ie card.as_json.to_json.