ActiveRecord :: Associations :: Collection to Array

Question

我有一个集合:

<Vote id: nil, author_uid: 9326214>,
<Vote id: nil, author_uid: 5643421>,
<Vote id: nil, author_uid: 9753813>

如何获取author_uid值的数组？

谢谢!

Answer 1

Vote.all.pluck(:author_uid)

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