touchable.rb in mongoid-9.0.1

- old
+ new

@@ -76,11 +76,11 @@
         return if touch_callbacks_suppressed?
 
         field = database_field_name(field)
 
         write_attribute(:updated_at, now) if respond_to?("updated_at=")
-        write_attribute(field, now) if field
+        write_attribute(field, now) if field.present?
 
         touches = _extract_touches_from_atomic_sets(field) || {}
         touches.merge!(_parent._gather_touch_updates(now) || {}) if _touchable_parent?
         touches
       end
@@ -210,15 +210,9 @@
     # @param [ Symbol ] name The name of the association.
     # @param [ Mongoid::Association::Relatable ] association The association metadata.
     #
     # @return [ Symbol ] The method name.
     def define_relation_touch_method(name, association)
-      relation_classes = if association.polymorphic?
-                           association.send(:inverse_association_classes)
-                         else
-                           [ association.relation_class ]
-                         end
-
       method_name = "touch_#{name}_after_create_or_destroy"
       association.inverse_class.class_eval do
         define_method(method_name) do
           without_autobuild do
             if !touch_callbacks_suppressed? && relation = __send__(name)