[Mysql-cocoa-users] testing for a NULL value from the db

[John S. <joh...@hw...>]

I have some rows in the database table that are nulls.

I am trying to do an assignment like this:

			[thisOne setCOMMENT:[row objectForKey:@"COMMENT"]];


but later on in assignments to elements I get an error of

*** -[NSNull length]: selector not recognized

since it's a null and not a string.

How do I test this coming from the db and set it to an empty string?

I tried this

		if ([row objectForKey:@"COMMENT"] != NULL)


but it's not a null, it's an object with a name of NSNull which I don't 
know how to deal with!

Help!