add new tag alias correction helper

app/models/tag.rb

@@ -34,12 +34,14 @@ class Tag < ActiveRecord::Base
   end
   
   module CountMethods
-    def counts_for(tag_names)
-      select_all_sql("SELECT name, post_count FROM tags WHERE name IN (?)", tag_names)
+    module ClassMethods
+      def counts_for(tag_names)
+        select_all_sql("SELECT name, post_count FROM tags WHERE name IN (?)", tag_names)
+      end
     end
     
     def fix_post_count
-      update_column(:post_count, Post.tag_match("#{name} status:any").count)
+      update_column(:post_count, Post.raw_tag_match(name).count)
     end
   end
   
@@ -462,7 +464,7 @@ class Tag < ActiveRecord::Base
   end
   
   include ApiMethods
-  extend CountMethods
+  include CountMethods
   extend ViewCountMethods
   include CategoryMethods
   extend StatisticsMethods

app/models/tag_alias.rb

@@ -94,22 +94,17 @@ class TagAlias < ActiveRecord::Base
 
   def clear_cache(host = Socket.gethostname)
     Cache.delete("ta:#{Cache.sanitize(antecedent_name)}")
+    Cache.delete("ta:#{Cache.sanitize(consequent_name)}")
   end
   
   def update_cache
     Cache.put("ta:#{Cache.sanitize(antecedent_name)}", consequent_name)
+    Cache.delete("ta:#{Cache.sanitize(consequent_name)}")
   end
   
   def update_posts
-    Post.tag_match("#{antecedent_name} status:any").find_each do |post|
-      escaped_antecedent_name = Regexp.escape(antecedent_name)
-      fixed_tags = post.tag_string.sub(/(?:\A| )#{escaped_antecedent_name}(?:\Z| )/, " #{consequent_name} ").strip
-      
-      CurrentUser.scoped(creator, creator_ip_addr) do
-        post.update_attributes(
-          :tag_string => fixed_tags
-        )
-      end
+    Post.raw_tag_match(antecedent_name).each do |post|
+      post.save
     end
   end
 end