Rails ActiveRecord:锁定而无需重新加载 [英] Rails ActiveRecord: lock without reload

问题描述

是否可以在不重新加载ActiveRecord对象的情况下锁定它?

Can I lock an ActiveRecord object without reloading it?

user = User.find(1)
=> #<User id: 1, name: "Ed" ...>
user.name = "Joe"
=> "Joe"
user.lock!
=> #<User id: 1, name: "Ed" ...>

我可以发送原始SQL"SELECT ... FOR UPDATE"，但看起来不太干净.

I could send a raw SQL "SELECT ... FOR UPDATE", but it doesn't seem too clean.

推荐答案

我最终向ActiveRecord::Base添加了一个方法:

I ended up adding a method to ActiveRecord::Base:

ActiveRecord::Base.class_eval do
  def lock_without_reload!
    self.class.lock(true).find(id)
    true
  end
end

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