database schema has items
Now when database is updated how can I check if there is entry already
with same information example:
new item is created with values login=doe groupid=10 and if such item
exists already on database then error is returned ?
I believe on model you can do something like this, correct ?
I know on model you can check if login=doe is already there but I need
to make sure that if both conditions
apply at the same time.