lib/jekyll/post.rb in jekyll-0.1.4 vs lib/jekyll/post.rb in jekyll-0.1.5

@@ -94,20 +94,26 @@
     
     # Calculate related posts.
     #
     # Returns [<Post>]
     def related_posts(posts)
-      self.class.lsi ||= begin
-        puts "Running the classifier... this could take a while."
-        lsi = Classifier::LSI.new
-        posts.each { |x| $stdout.print(".");$stdout.flush;lsi.add_item(x) }
-        puts ""
-        lsi
-      end
+      return [] unless posts.size > 1
+      
+      if Jekyll.lsi
+        self.class.lsi ||= begin
+          puts "Running the classifier... this could take a while."
+          lsi = Classifier::LSI.new
+          posts.each { |x| $stdout.print(".");$stdout.flush;lsi.add_item(x) }
+          puts ""
+          lsi
+        end
 
-      related = self.class.lsi.find_related(self.content, 11)
-      related - [self]
+        related = self.class.lsi.find_related(self.content, 11)
+        related - [self]
+      else
+        (posts - [self])[0..9]
+      end
     end
     
     # Add any necessary layouts to this post
     #   +layouts+ is a Hash of {"name" => "layout"}
     #   +site_payload+ is the site payload hash
@@ -143,6 +149,6 @@
         "id" => self.id,
         "content" => self.content }
     end
   end
 
-end
\ No newline at end of file
+end