Grails automatic timestamp

In your domain class, you can add a field which has automatic timestamp (When creating or when updating).
The date field must have the name dateCreated or lastUpdated.
It's a convention define by Grails.

Example :

class Person {
   Date dateCreated
   Date lastUpdated
}

If you want to disable this feature, you can make the following :

class Person {
   Date dateCreated
   Date lastUpdated
   static mapping = {
      autoTimestamp false
   }
} 

See also :

•  http://grails.org/doc/latest/guide/GORM.html#ormdsl
• http://stackoverflow.com/questions/9052292/datecreated-lastupdated-fields-in-grails-2-0