app/models/pulitzer/post.rb in pulitzer-0.12.3 vs app/models/pulitzer/post.rb in pulitzer-0.12.4

@@ -13,9 +13,10 @@
     after_create :create_preview_version
 
     attr_accessor :new_preview_version
 
     validates :title, presence: true
+    validates :slug, uniqueness: true
 
     TAG_MODELS = ["Pulitzer::Tag"] + Pulitzer.tagging_models
 
     def active_version!
       versions.find_by!(status: Pulitzer::Version.statuses[:active])