<if-not-exists> executes a block of code if an object does not exist in the db

name
if-not-exists
xml namespace
http://moyaproject.com/db

Executes the enclosed block if an object does not exists in the db.

inherited attributes
name purpose type required? default choices
db Database text No "_default"
filter Filter expression database expression No
from Application application reference No
if Conditional expression expression No yes
model Model text No
modelobj Model object expression No None