Laravel 4 Fluent Query Builder - Object of class stdClass could not be converted to string

Question

Actually I want to use below query:

Select userid,username from users where userid not in (Select distinct fkuserid from staff);

So for that I have used:

$result=DB::table('users') -> whereNOTIN('userid',DB::table('staff') -> distinct() -> get(array('fkuserid'))) -> get(); 

but it is giving error of Object of class stdClass could not be converted to string.

Answer 1

I'm working on L3, which lacks what I've now found in L4 docs. Try:

$result=DB::table('users') -> whereNotIn('userid',DB::table('staff') -> distinct() -> lists('fkuserid')) -> get();

The lists() method should (I think) return only an array of ids as I wrote in comment.