Tell friendly_id to regenerate slug if title has changed.

This is due to change in friendly_id 5.0.x where it doesn’t regenerate
slug when record is updated.

2 files changed, 30 insertions, 0 deletions

diff --git a/app/models/refinery/blog/post.rb b/app/models/refinery/blog/post.rb
index 005ec29..f80a939 100644
--- a/app/models/refinery/blog/post.rb
+++ b/app/models/refinery/blog/post.rb
@@ -32,6 +32,12 @@ module Refinery
         is_seo_meta
       end
 
+      # If custom_url or title changes tell friendly_id to regenerate slug when
+      # saving record
+      def should_generate_new_friendly_id?
+        custom_url_changed? || title_changed?
+      end
+
       # Delegate SEO Attributes to globalize translation
       seo_fields = ::SeoMeta.attributes.keys.map{|a| [a, :"#{a}="]}.flatten
       delegate(*(seo_fields << {:to => :translation}))
diff --git a/spec/models/refinery/blog/post_spec.rb b/spec/models/refinery/blog/post_spec.rb
index 8b156cb..99946b8 100644
--- a/spec/models/refinery/blog/post_spec.rb
+++ b/spec/models/refinery/blog/post_spec.rb
@@ -234,6 +234,30 @@ module Refinery
         end
       end
 
+      describe "#should_generate_new_friendly_id?" do
+        context "when custom_url changes" do
+          it "regenerates slug upon save" do
+            post = FactoryGirl.create(:blog_post, :custom_url => "Test Url")
+
+            post.custom_url = "Test Url 2"
+            post.save!
+
+            expect(post.slug).to eq("test-url-2")
+          end
+        end
+
+        context "when title changes" do
+          it "regenerates slug upon save" do
+            post = FactoryGirl.create(:blog_post, :title => "Test Title")
+
+            post.title = "Test Title 2"
+            post.save!
+
+            expect(post.slug).to eq("test-title-2")
+          end
+        end
+      end
+
     end
   end
 end