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Ruby on Rails - ③ link_toメソッド

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link_toメソッド

Scaffoldで自動生成されたコード

<td><%= link_to 'Show', user %></td>
<td><%= link_to 'Edit', edit_user_path(user) %></td>
<td><%= link_to 'Destroy', user, method: :delete, data: { confirm: 'Are you sure?' } %></td>

URLやパスを指定

外部のURLにリンクを追加

link_to 'Google', 'http://www.google.co.jp'

「_path」を付けて次のように記述することもできる

routes情報を見て見ましょう〜

$ rails routes
スクリーンショット 2019-04-06 16.01.35.png

_pathの前に「Prefix」をつければいいですね。
editのPrefixは「edit_user」なのでedit_user_pathになります。
editはAction名、userはController名の単数

<td><%= link_to 'Edit', edit_user_path(user) %></td>
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