run script when xpages saving document - save

Question

The xpages contain SAVE button. The xpages also contain InternetAddres field.
When user click SAVE button, need to check first on names.nsf
- Save success if InternetAddress value NOT found in names.nsf view "($Users)"
- Save fail if InternetAddress value found in names.nsf view "($Users)"
How to write the script to do that?
This is the LotusScript version of script:
Set namesview = namesdb.GetView( "($Users)" )
Set namesdoc = namesview.GetDocumentByKey( Lcase(doc.CurrentInternetAddress( 0 ) ), True )
If ( namesdoc Is Nothing ) Then '-- Create New Doc
How to move on xpages?

Answer 1

The latest release of the OpenNTF Domino API adds a checkUnique() method to the View class. It takes two parameters, the first being a key to check against the view (e.g. a String or List of Strings), the second being the current document. After all, if you're checking for a pre-existing document, you don't want to fail just because it finds this document in the view.
So assuming CurrentInternetAddress is a single value field, the code would be:
function continueWithValidUser(namesDB, doc) {
var success = false;
try {
var view = namesDB.getView("($Users)");
success = view.checkUnique(doc.getItemValue("CurrentInternetAddress"),doc);
} catch (e) {
print(e.message);
}
return success;
}
OpenNTF Domino API recycles all handles to Domino objects, so the recycle() calls aren't needed.

Answer 2

In your datasource is a querySave event. You write JS there. It is almost the same code. Just with { } and ;
Remarks:
your app will break when there is more than one address book, so you you would want to use #NameLookup which is quite fast and checks all addressbooks.
unless you need the document getEntry is faster than getDocument
In SSJS your function would look like this:
function continueWithValidUser(namesDB, addressCandidate) {
var success = false;
try {
var view = namesDB.getView("($Users)");
var doc = view.getDocumentByKey(addressCandidate);
success = (doc != null);
doc.recycle();
view.recycle();
} catch (e) {
print(e.message);
}
return success;
}
That should do the trick