lib/mongoid_fulltext.rb in mongoid_fulltext-0.4.4 vs lib/mongoid_fulltext.rb in mongoid_fulltext-0.4.5

@@ -233,9 +233,18 @@
     
   end
 
   def update_ngram_index
     self.mongoid_fulltext_config.each_pair do |index_name, fulltext_config|
+      if condition = fulltext_config[:update_if]
+        case condition
+        when Symbol;  next unless self.send condition
+        when String;  next unless instance_eval condition
+        when Proc;    next unless condition.call self
+        else;         next
+        end
+      end
+
       # remove existing ngrams from external index
       coll = collection.db.collection(index_name)
       coll.remove({'document_id' => self._id})
       # extract ngrams from fields
       field_values = fulltext_config[:ngram_fields].map { |field| self.send(field) }