domain: server
language: python
class Item class
Deletes the active record and positions the cursor on the next record.
The delete method
checks if item dataset is active, otherwise raises exception
checks if item dataset is not empty, otherwise raises exception
if item is a detail , checks if the master item is in edit or insert state, otherwise raises exception.
if item is not a detail , checks if it is in browse state, otherwise raises exception.
puts the item into delete state
deletes the active record and positions the cursor on the next record
puts the item into browse state