Hide order selectors when only one order available

app/views/shared/_order_selector.html.erb

@@ -1,4 +1,5 @@
-<form class="inline-block">
+<% if @valid_orders.present? && @valid_orders.count > 1 %>
+  <form class="inline-block">
     <label for="order-selector-participation" class="show-for-sr"><%= t("#{i18n_namespace}.select_order") %></label>
     <select class="js-location-changer js-order-selector select-order"
             data-order="<%= @current_order %>"
@@ -11,4 +12,5 @@
          </option>
        <% end %>
      </select>
-</form>
+  </form>
+<% end %>

app/views/shared/_wide_order_selector.html.erb

@@ -2,8 +2,8 @@
    #
    #   i18n_namespace: for example "moderation.debates.index"
 %>
-
-<div class="wide-order-selector small-12 medium-8">
+<% if @valid_orders.present? && @valid_orders.count > 1 %>
+  <div class="wide-order-selector small-12 medium-8">
     <form>
       <div class="small-12 medium-6 float-left">
         <label for="order-selector-participation">
@@ -23,4 +23,5 @@
         </select>
       </div>
     </form>
-</div>
+  </div>
+<% end %>