Is there anything wrong with defaulting a boolean field to nil
rather than false
with an ActiveRecord migration for use with Postgres?
I like how it gives a small bit of extra data- whether or not that field has been marked as true or false yet.
没有什么可以阻止你在布尔上使用nil - 但是我个人喜欢我的布尔是真的还是假的,我发现nil会导致一些丑陋的代码
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