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【Rails】render textが使用できない

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はじめに

Railsのアップデート中にrender textを使用している箇所でエラーが出たので、その対応をまとめます。

問題

以下のように、render textを使用するとエラーが出ます。

class TestController < ApplicationController

  def index
    render text: "Hello World"
  end

end

解決方法

Rails5系からrender textは使用できなくなりました。
代わりにrender plainを使います。

class TestController < ApplicationController

  def index
    render plain: "Hello World"
  end

end

参考

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