1 files changed, 8 insertions, 0 deletions

@@ -5,6 +5,8 @@ class Update < ApplicationRecord
 
   validates :stream, :body, presence: true
 
+  after_create :set_latest_timestamp
+
   def path
     "/thinks/#{stream.slug}\#update-#{id}"
   end
@@ -12,4 +14,10 @@ class Update < ApplicationRecord
   def taggable
     stream
   end
+
+  private
+    def set_latest_timestamp
+      self.stream.latest_post_at = self.created_at
+      self.stream.save!
+    end
 end