lib/active_cleaner/utf8mb3_cleaner.rb in activecleaner-0.3.0 vs lib/active_cleaner/utf8mb3_cleaner.rb in activecleaner-0.3.1

@@ -2,11 +2,14 @@
 
 module ActiveCleaner
   class Utf8mb3Cleaner < BaseCleaner
 
     def clean_value(old_value, record=nil)
-      unless old_value.nil?
+      case old_value
+      when String
         old_value.each_char.select { |char| char.bytesize < 4 }.join('')
+      else
+        old_value
       end
     end
 
   end
 end