rails-使用多个更改的属性更新活动记录关系 [英] rails - updating active record relation with multiple changed properties

问题描述

我有一个活动记录关系，定义如下：

I have an active record relation defined like this:

contacts = Contact.where("status = 'waiting'")

然后我运行 .each 循环并根据某些逻辑更改联系人的属性。

I then run an .each loop and change properties of contacts depending on some logic.

我不想对每个对象进行保存！个人联系人...循环后如何更好地保存整个联系人关系？

I don't want to do a save! on each individual contact... how can I better save the entire contacts relation after the loop?

contacts.each do |contact|

        //Change properties of contact here

end

在包含新属性后，我该如何保存新更新的联系人activerecord关系？

How do I save the newly updates contacts activerecord relation after it contains its new properties?

最有效的方式不能通过联系人保存来进行联系。

The most efficient way can't be doing a contact by contact save.

推荐答案

update_all可以使您免于执行循环并为您完成保存，这里是文档。
https://apidock.com/rails/v4.0.2/ ActiveRecord / Relation / update_all

update_all saves you from doing the loop and do the save for you, here is the documentation. https://apidock.com/rails/v4.0.2/ActiveRecord/Relation/update_all

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