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@creamysellotape

ActiveModel::Attributes.attribute で配列を使う

More than 1 year has passed since last update.

概要

仕事でActiveModelを利用した時にはまった内容。

内容

やりたかったこと

app/model/hoge.rb
class Hoge
  include ActiveModel::Model
  include ActiveModel::Attributes

  attribute :fuga, :array # 配列で保持できるようにしたい
end

はい、無理でした。。
そもそもActiveModel::Typeで配列は定義されていない。。(ref

どうしたか

とりあえずsourceを見つつ以下のようにしてみたら動いた

app/model/hoge.rb
class Hoge
  include ActiveModel::Model
  include ActiveModel::Attributes

  attribute :fuga, array: :integer
end

とりあえずは動いたが...

本当にこれでいいのかちゃんと調べないとなぁ...

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creamysellotape
web系によくいるようなエンジニアです。

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Help us understand the problem. What is going on with this article?