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Rails: 指定したカラムを持つ全てのmodel名を取得する

Ruby
Rails

Last updated at 2017-06-23Posted at 2017-05-02

def models_with_attribute(attr)
  ActiveRecord::Base.connection.tables.
    select{ |table| table.classify.safe_constantize&.has_attribute?(attr) }
end

 => ["ModelA",
 "ModelB",
 "ModelC"]

@QUANONさんから教えてもらったselectを加えて更にシンプルになりました。

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