
<%= form_tag unpublish_admin_edition_path(@edition, lock_version: @edition.lock_version) do %>
  <%= fields_for Unpublishing.new do |unpublish| %>
    <%= unpublish.label :unpublishing_reason_id, "Reason for unpublishing" %>
    <%= unpublish.select :unpublishing_reason_id, options_from_collection_for_select(UnpublishingReason.all, :id, :name) %>
    <%= unpublish.text_area :explanation, label_text: 'Further explanation'  %>
    <%= unpublish.text_field :alternative_url, label_text: 'Alternative URL' %>
    <%= submit_tag 'Unpublish', class: "btn btn-danger" %>
  <% end %>
<% end %>

<% page_title "Unpublish: #{@edition.title}"  %>

  <div class="span8">
    <section>
      <h1>Unpublish <%= @edition.type.titleize %></h1>

      <%= form_tag unpublish_admin_edition_path(@edition, lock_version: @edition.lock_version) do %>
        <%= fields_for :unpublishing do |unpublish| %>
          <%= unpublish.label :unpublishing_reason_id, "Reason for unpublishing" %>
          <%= unpublish.select :unpublishing_reason_id, options_from_collection_for_select(UnpublishingReason.all, :id, :name) %>
          <%= unpublish.text_area :explanation, label_text: 'Further explanation', rows: 5  %>
          <%= unpublish.text_field :alternative_url, label_text: 'Alternative URL' %>
          <%= submit_tag 'Unpublish', class: "btn btn-danger" %>
          <span class="or_cancel"> or <%= link_to 'cancel', [:admin, @edition] %></span>
        <% end %>
      <% end %>
    </section>
  </div>

Add cancel link to unpublish form
Add cancel link to unpublish form
