Checking in the missing file and optimizing the code

promo/app/controllers/spree/store_controller_decorator.rb

@@ -35,13 +35,13 @@ def apply_coupon_code
             elsif previous_promo.present? and promo.present?
               flash[:error] = t(:coupon_code_better_exists)
               false
-            elsif (promo.id == 89 and exclusion_rule.present? and !exclusion_rule.eligible?(@order))
-              items = exclusion_eligible_products && @order.products.map(&:name)
-              flash["product-exclusion-preorder-warning"] = "#{t(:coupon_code_not_for_preorders)}, #{t(:go_back_to)} <a href='#{spree.cart_path}'>#{t(:shopping_cart)}</a> #{t(:remove_items)}: #{items.join(', ')}".html_safe
-              false
             elsif (exclusion_rule.present? and !exclusion_rule.eligible?(@order))
               items = exclusion_eligible_products && @order.products.map(&:name)
-              flash["product-exclusion-warning"] = "#{t(:product_exclusion_rule_warning)} #{t(:listed_items)}: #{items.join(', ')}"
+              if promo.id == 89
+                flash["product-exclusion-preorder-warning"] = "#{t(:coupon_code_not_for_preorders)}, #{t(:go_back_to)} <a href='#{spree.cart_path}'>#{t(:shopping_cart)}</a> #{t(:remove_items)}: #{items.join(', ')}".html_safe
+              else
+                flash["product-exclusion-warning"] = "#{t(:product_exclusion_rule_warning)} #{t(:listed_items)}: #{items.join(', ')}"
+              end
               false
             elsif promo.present?
               flash[:error] = t(:coupon_code_not_eligible)

promo/config/locales/en.yml

@@ -22,11 +22,16 @@ en:
   coupon_code_already_applied: The coupon code has already been applied to this order
   coupon_code_better_exists: The previously applied coupon code results in a better deal
   coupon_code_not_found: The coupon code you entered doesn't exist. Please try again.
-  coupon_code_not_for_preorders: You can't use a free shipping coupon on an order that contains one of the new pre-order items. Please place a separate order for the pre-order items. 
+  coupon_code_not_for_preorders: Oops! The Free Shipping coupon doesn't apply to the new pre-order items in your cart. You will need to place a separate order for the pre-order items. To get the Free Shipping discount on this order 
   coupon_code_max_usage: Coupon code usage limit exceeded
   coupon_code_not_eligible: This coupon code is not eligible for this order
+  product_exclusion_rule_warning: Oops! Your cart contains item(s) that will not work with this promotion. 
+  listed_items: The listed item(s) must be removed before the discount can apply
   editing_promotion: Editing Promotion
   current_promotion_usage: 'Current Usage: %{count}'
+  go_back_to: please go back to the
+  remove_items: and remove the following items
+  shopping_cart: Shopping Cart
   events:
     spree:
       checkout: