This property is used to indicate if the represented table has a primary
key that uses a sequence (true, otherwise false. Default is true).
- Method insert of DB_Model now checks the property hasSequence.
If it is true it uses the method insert_id() to return the primary key
of the row just inserted.
For any other values the method returns the primary key inserted coping
it directly from the parameters.
- Set the property hasSequence to false in the constructor of model Prestudentstatus
paolo