Rails обновляет поле без формы

Я бы сделал это с помощью ajax:

Вам нужно что-то подобное в вашем файле routes.rb.

resources :orders

заказы/show.html.erb:

<div id="order" data-order-id="<%= @order.id %>"></div>

<p id="notice"><%= notice %></p>

<p>
  <strong>Status:</strong>
  <%= @order.status %>
</p>

<p>
  <strong>Name:</strong>
  <%= @order.name %>
</p>

<%= link_to 'Edit', edit_order_path(@order) %> |
<%= link_to 'Back', orders_path %>
<%= link_to 'Shipped', '',id: "ship" %> |
<%= link_to 'Close',   '', id: "close" %>



<script> 
$(function () {
    var orderId = $('#order').data("order-id");
    var shippButton = $('#ship');

    var closeButton = $('#close');
    alert(orderId);



    closeButton.on("click", function() {
        $.ajax({
            url: '/orders/'+orderId,
            type: 'PATCH',
            dataType: 'json',
            data: {"order": { "status": "4"}},
            complete: function (jqXHR, textStatus) {
                // callback
            },
            success: function (data, textStatus, jqXHR) {
                // inform user that it was a sucess like:
                alert("successfully changed the order to closed");
            },
            error: function (jqXHR, textStatus, errorThrown) {
                // do something if the request fails
            }
        });
    });

    shippButton.on("click", function() {
        $.ajax({
            url: '/orders/'+orderId,
            type: 'PATCH',
            dataType: 'json',
            data: {"order": { "status": "3"}},
            complete: function (jqXHR, textStatus) {
                // callback
            },  
            success: function (data, textStatus, jqXHR) {
                // inform user that it was a sucess like:
                alert("successfully changed the order to shipped");
            },  
            error: function (jqXHR, textStatus, errorThrown) {
                // do something if the request fails
            }   
        }); 
    });
});

</script>