NHibernate PreUpdate event listener not persisting changes
events, listener, nhibernate
Solution
Do you have dynamic-update in your table mappings? There's a "bug" in NHibernate that prevents PreUpdate and PreInsert from working with dynamic-update. See http://www.mail-archive.com/nhusers@googlegroups.com/msg13624.html
Problem
We have the following PreUpdate event listener: ``` public bool OnPreUpdate(PreUpdateEvent @event) { BaseBO entity = @event.Entity as BaseBO; if (entity == null) return false; var operatorName = "OpName"; var utcDateTime = DateTime.Now.ToUniversalTime(); Set(@event.Persister, @event.State, "ModifiedBy", "Fred & Barney"); Set(@event.Persister, @event.State, "ModifiedDate", utcDateTime); entity.ModifiedBy = "fred & barney"; entity.ModifiedDate = utcDateTime; return false; } private void Set(IEntityPersister persister, object[] state, string propertyName, object value) { var index = Array.IndexOf(persister.PropertyNames, propertyName); if (index == -1) return; state[index] = value; } ``` Breakpoints on return statement indicate that the old / new state values and the entity properties have been updated to the expected values. However running Sql profiler shows that the ModifiedDate / ModifiedBy values are not updated. If I update the persistence code and set the ModifiedDate manually, Profiler shows the ModifiedDate being updated. The mapping file for the majority of our entities is: ``` <property name="ModifiedDate" insert="false" /> ``` Any thoughts as to what could be preventing the values set by the event listener from being propogated to the database?