Load shipping methods in the Controller

needed to populate the form

app/controllers/split_checkout_controller.rb

@@ -19,7 +19,7 @@ class SplitCheckoutController < ::BaseController
   prepend_before_action :require_order_cycle
   prepend_before_action :require_distributor_chosen
 
-  before_action :load_order
+  before_action :load_order, :load_shipping_methods
 
   before_action :ensure_order_not_completed
   before_action :ensure_checkout_allowed
@@ -91,6 +91,10 @@ class SplitCheckoutController < ::BaseController
     redirect_to main_app.cart_path if @order.completed?
   end
 
+  def load_shipping_methods
+    @shipping_methods = Spree::ShippingMethod.for_distributor(@order.distributor).order(:name)
+  end
+
   def load_order
     @order = current_order