ruby on rails - Previous page in link_to -


is possible put request.referer in link_to tag. have page called 2 different pages, , use link go back(if there page, otherwise, put default one). far tried this.

  <%= link_to "return", request.referer %>

but error saying undefined method referer.

also tried in controller like:

@url = request.referer

and in page :

  <%= link_to "return", @url %>

but link current page url. how can achieve want.

thanks.

= link_to "back", request.referer.present? ? request.referer : default_path

or in erb

<%= link_to "back", request.referer.present? ? request.referer : default_path %>

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