add menuitem aliases

templates/food_vendor/show.html.twig

@@ -24,6 +24,9 @@
             {% for item in food_vendor.menuItems %}
                 <li>
                     <a href="{{ path('app_menu_item_show', {'id': item.id}) }}">{{ item.name }}</a>
+                    {% if(item.aliasOf) %}
+                        (alias of: {{ item.aliasOf.name }})
+                    {% endif %}
                 </li>
             {% endfor %}
         </ul>

templates/menu_item/show.html.twig

@@ -15,6 +15,12 @@
                 <th>Name</th>
                 <td>{{ menu_item.name }}</td>
             </tr>
+            {% if(menu_item.aliasOf) %}
+            <tr>
+                <th>Alias of</th>
+                <td>{{ menu_item.aliasOf.name }}</td>
+            </tr>
+            {% endif %}
         </tbody>
     </table>