product.rb and taxon.rb models updated to enable saving slugs and per…

…malinks

core/app/models/spree/product.rb

@@ -42,11 +42,24 @@ class Product < Spree::Base
     translates(*TRANSLATABLE_FIELDS)
 
     self::Translation.class_eval do
+      before_update :set_slug
       acts_as_paranoid
       # deleted translation values also need to be accessible for index views listing deleted resources
       default_scope { unscope(where: :deleted_at) }
+      def set_slug
+        if self.name.blank? & self.slug.blank?
+            self.slug = translated_model.translations.find_by(locale: translated_model.stores.first.default_locale).name.to_url
+        else
+          if self.slug.blank?
+            self.slug = self.name.to_url
+          else
+            self.slug = self.slug.to_url
+          end
+        end
+      end
     end
 
+
     friendly_id :slug_candidates, use: [:history, :mobility]
     acts_as_paranoid
     auto_strip_attributes :name

core/app/models/spree/taxon.rb

@@ -62,13 +62,15 @@ class Taxon < Spree::Base
 
     self::Translation.class_eval do
       alias_attribute :slug, :permalink
-
-      before_create :set_permalink
+      before_update :set_permalink
 
       def set_permalink
         parent = translated_model.parent
         name_with_fallback = name || translated_model.name
 
+        if self.name.blank? & self.permalink.blank?
+          self.permalink = translated_model.name.to_url
+        end
         if parent.present?
           self.permalink = [parent.permalink, (permalink.blank? ? name_with_fallback.to_url : permalink.split('/').last)].join('/')
         else