add humanized tag string for posts

app/logical/post_sets/favorite.rb

@@ -15,6 +15,10 @@ module PostSets
       tag_array.uniq.join(" ")
     end
     
+    def humanized_tag_string
+      "fav:#{user.pretty_name}"
+    end
+    
     def posts
       favorites.order("favorites.id desc").includes(:post).map(&:post)
     end

app/logical/post_sets/pool.rb

@@ -37,6 +37,10 @@ module PostSets
       tag_array.join("")
     end
     
+    def humanized_tag_string
+      "pool:#{pool.pretty_name}"
+    end
+    
     def presenter
       @presenter ||= PostSetPresenters::Pool.new(self)
     end

app/logical/post_sets/post.rb

@@ -11,6 +11,10 @@ module PostSets
       @tag_string ||= tag_array.uniq.join(" ")
     end
     
+    def humanized_tag_string
+      tag_array.slice(0, 25).join(" ").tr("_", " ")
+    end
+    
     def has_wiki?
       tag_array.any? && ::WikiPage.titled(tag_string).exists?
     end