- 
        <%= form_tag("bikes/search", method: "get", class: "form-inline") do %>
          <%= label_tag(:log_number, "Search for a bike by log number:") %>
          <%= text_field_tag :log_number, "", class: "form-control" %>
          <%= submit_tag("Search", class: "btn btn-default") %>
        <% end %>
      
- 
        <%= if current_user
              link_to "Sign Out", destroy_user_session_path, method: :delete
            else
              link_to "Sign In", new_user_session_path
        end %>