fix tests

app/logical/moderator/tag_batch_change.rb

@@ -1,23 +1,20 @@
 module Moderator
-  class TagBatchChange
+  class TagBatchChange < Struct.new(:antecedent, :consequent, :updater_id, :updater_ip_addr)
     class Error < Exception ; end
     
-    attr_reader :predicate, :consequent
-    
-    def initialize(predicate, consequent)
-      @predicate = predicate
-      @consequent = consequent
-    end
-    
-    def execute
-      raise Error.new("Predicate is missing") if predicate.blank?
+    def perform
+      raise Error.new("antecedent is missing") if antecedent.blank?
       
-      normalized_predicate = TagAlias.to_aliased(::Tag.scan_tags(predicate))
+      normalized_antecedent = TagAlias.to_aliased(::Tag.scan_tags(antecedent))
       normalized_consequent = TagAlias.to_aliased(::Tag.scan_tags(consequent))
-
-      ::Post.tag_match(predicate).each do |post|
-        tags = (post.tag_array - normalized_predicate + normalized_consequent).join(" ")
-        post.update_attributes(:tag_string => tags)
+      
+      updater = User.find(updater_id)
+      
+      CurrentUser.scoped(updater, updater_ip_addr) do
+        ::Post.tag_match(antecedent).each do |post|
+          tags = (post.tag_array - normalized_antecedent + normalized_consequent).join(" ")
+          post.update_attributes(:tag_string => tags)
+        end
       end
     end
   end