Simple form to choose which translation should be edited

form.html.erb

<%= form_tag([:edit, :admin, @tech_spec.boat, @tech_spec], method: :get) do %>
  <%= select_tag(:translation,
                 options_from_collection_for_select(@translations,
                                                    :first,
                                                    :last,
                                                    @translation)) %>
  <%= submit_tag('Go to this translation') %>
<% end %>