如何在不触及 updated_at 属性的情况下更新单个属性? [英] How to update a single attribute without touching the updated_at attribute?

问题描述

我怎样才能做到这一点?

How can I achieve this?

尝试创建2个方法，称为

tried to create 2 methods, called

def disable_timestamps
  ActiveRecord::Base.record_timestamps = false
end

def enable_timestamps
  ActiveRecord::Base.record_timestamps = true
end

和更新方法本身:

def increment_pagehit
  update_attribute(:pagehit, pagehit+1)
end

使用以下回调打开和关闭时间戳:

turn timestamps on and off using callbacks like:

before_update :disable_timestamps, :only => :increment_pagehit
after_update :enable_timestamps, :only => :increment_pagehit

但它没有更新任何内容，甚至是所需的属性(pagehit).

but it's not updating anything, even the desired attribute (pagehit).

有什么建议吗?我不想为了计算页面点击量而创建另一个表.

Any advice? I don't want to have to create another table just to count the pagehits.

推荐答案

有没有办法避免自动更新 Rails 时间戳字段?

或者更接近您的问题:

http://blog.bigbinary.com/2009/01/21/override-automatic-timestamp-in-activerecord-rails.html

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