WIP; only advance order to delivery state

Use the hidden_field_tag rails helper and move it

app/controllers/checkout_controller.rb

@@ -46,7 +46,7 @@ class CheckoutController < ::BaseController
     params_adapter = Checkout::FormDataAdapter.new(permitted_params, @order, spree_current_user)
     return action_failed unless @order.update(params_adapter.params[:order] || {})
 
-    checkout_workflow(params_adapter.shipping_method_id)
+    checkout_workflow(params_adapter.shipping_method_id, params[:advance_to_state])
   rescue Spree::Core::GatewayError => e
     rescue_from_spree_gateway_error(e)
   rescue StandardError => e
@@ -167,8 +167,8 @@ class CheckoutController < ::BaseController
     end
   end
 
-  def checkout_workflow(shipping_method_id)
-    while @order.state != "complete"
+  def checkout_workflow(shipping_method_id, advance_to_state = "complete")
+    while @order.state != advance_to_state
       if @order.state == "payment"
         return if redirect_to_payment_gateway
 

app/controllers/split_checkout_controller.rb

@@ -1,3 +1,26 @@
 class SplitCheckoutController < CheckoutController
+  def update
+    byebug
+    params_adapter = Checkout::FormDataAdapter.new(permitted_params, @order, spree_current_user)
+    return action_failed unless @order.update(params_adapter.params[:order] || {})
 
+    checkout_workflow(params_adapter.shipping_method_id, params[:advance_to_state] || "delivery")
+  rescue Spree::Core::GatewayError => e
+    byebug
+    rescue_from_spree_gateway_error(e)
+  rescue StandardError => e
+    byebug
+    flash[:error] = I18n.t("checkout.failed")
+    action_failed(e)
+  ensure
+    @order.update_order!
+  end
+
+  private
+
+  def redirect_to_payment_gateway
+    return unless params&.dig(:order)&.dig(:payments_attributes)&.first&.dig(:payments_attributes)
+
+    super
+  end
 end

app/models/spree/payment.rb

@@ -145,7 +145,7 @@ module Spree
         adjustment.originator = payment_method
         adjustment.label = adjustment_label
         adjustment.save
-      else
+      elsif payment_method.present?
         payment_method.create_adjustment(adjustment_label, self, true)
         adjustment.reload
       end

app/views/split_checkout/_form.html.haml

@@ -7,4 +7,5 @@
 
   %div.checkout-step.medium-6
     - if true ## test step
+      = hidden_field_tag "advance_to_state", "delivery"
       = render "split_checkout/your_details", f: f