app/models/esa/account.rb in event_sourced_accounting-0.2.2 vs app/models/esa/account.rb in event_sourced_accounting-0.2.3

@@ -33,10 +33,10 @@
 
     after_initialize :initialize_defaults
 
     before_validation :update_normal_balance
     validates_presence_of :type, :name, :chart, :normal_balance
-    validates_uniqueness_of :code, :scope => :chart_id
+    validates_uniqueness_of :code, :scope => :chart_id, :allow_nil => true
     validates_uniqueness_of :name, :scope => :chart_id
 
     # The balance of the account.
     #
     # @example