Rails 4+ 最佳实践:删除父级同时保留子级

问题描述

我想保留子记录和层次结构，即使删除父记录也是如此.我看到两个选项:

I want to keep child records and the hierarchy, even when the parent is deleted. I see two options:

1. 保留现有父项并使用deleted_at"字段来指示parent 本身是不活动的，但关系仍然存在.这将导致永久存储许多有效的死父记录.嗯.
2. 将所有废弃的子记录分配给一个通用的收集器"僵尸父记录.我更喜欢这个，但是这样你就会失去子记录原始来源的历史记录.

我没有 Rails 经验，无法预见这两条中哪一条是最可取的，或者可能有完全不同的解决方案.

I don't have the Rails experience to see ahead as to which of these 2 would be the most advisable path to take, or maybe there's an altogether different solution.

SO 告诉我这似乎是一个主观问题，他们可能会关闭它.我希望不会，因为我相信其他人也有这个问题.

SO is telling me this appears to be a subjective question and they may close it. I hope not, because I'm sure this is a question that others have as well.

推荐答案

在我看来，您基本上是在询问软删除"功能.当我想要这种行为时，我通常会添加一个默认为 true 的 active 属性.我还在模型中添加了一个 active 范围，这样我就可以执行诸如 Salon.active 之类的操作来方便地获取所有活动的内容.

It seems to me like you're basically asking about "soft delete" functionality. When I want this kind of behavior, I usually add an active attribute that defaults to true. I also add an active scope to the model so I can do something like Salon.active to conveniently get everything that's active.

所以我想我的答案是我会做一些类似 #1 的事情，我称之为软删除.想法 #2 对我来说似乎很疯狂.

So I guess my answer is that I'd do something like #1, which I would call a soft delete. Idea #2 seems pretty crazy to me.

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