Fix rubocop issues

app/models/spree/classification.rb

@@ -11,10 +11,11 @@ module Spree
     private
 
     def dont_destroy_if_primary_taxon
-      if product.primary_taxon == taxon
-        errors.add :base, I18n.t(:spree_classification_primary_taxon_error, taxon: taxon.name, product: product.name)
-        false
-      end
+      return unless product.primary_taxon == taxon
+
+      errors.add :base, I18n.t(:spree_classification_primary_taxon_error, taxon: taxon.name,
+                                                                          product: product.name)
+      false
     end
   end
 end

app/models/spree/taxon.rb

@@ -41,9 +41,9 @@ module Spree
     # Creates permalink based on Stringex's .to_url method
     def set_permalink
       if parent.present?
-        self.permalink = [parent.permalink, (permalink.blank? ? name.to_url : permalink.split('/').last)].join('/')
-      else
-        self.permalink = name.to_url if permalink.blank?
+        self.permalink = [parent.permalink, permalink_end].join('/')
+      elsif permalink.blank?
+        self.permalink = name.to_url
       end
     end
 
@@ -100,5 +100,13 @@ module Spree
         ts[t.enterprise_id.to_i] << t.id
       end
     end
+
+    private
+
+    def permalink_end
+      return name.to_url if permalink.blank?
+
+      permalink.split('/').last
+    end
   end
 end