Reverse the existing order clause on the relation.

<span class="constant"><a href="https://apidock.com/rails/User">User</a></span><span class="punct">.</span><span class="ident"><a href="https://apidock.com/rails/ActiveRecord/QueryMethods/order">order</a></span><span class="punct">(&#39;</span><span class="string">name ASC</span><span class="punct">&#39;).</span><span class="ident"><a href="https://apidock.com/rails/ActiveRecord/QueryMethods/reverse_order">reverse_order</a></span> <span class="comment"># generated SQL has &#39;ORDER BY name DESC&#39;</span>