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確認画面がある場合のcarriewaveで画像アップロード

Last updated at Posted at 2016-05-01

new→confirmation→completeとアクションを移動するイメージ

#確認画面のview (confirmation.html.erb)

#確認画面用の画像
<%= image_tag(@user.image.url) %>
#キャッシュファイル名を渡す
<%= hidden_field_tag :"cache[image]", @user.image.cache_name %>

#送信画面 (コントローラー内のcompleteアクション)

#キャッシュから画像を復元する
@user.image.retrieve_from_cache! params[:cache][:image]
@user.save!
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