Forum: Ruby on Rails How do you check if associated table is empty from find?

Announcement (2017-05-07): is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see and for other Rails- und Ruby-related community platforms.
Bob S. (Guest)
on 2009-02-17 03:36
So I have two tables:

- teams
- players

I'm trying to find all teams that have no players. I thought this could

Team.find(:all, :joins => :players, :conditions => ["players.size = ?",
0] )

Of course that's not working for me because I'm mixing the SQL with
Rails. Do you know the proper way to find all teams that have no
Jeff E. (Guest)
on 2009-02-17 03:47
(Received via mailing list)
You could add a :counter_cache to your model if you want a simple

On Feb 16, 8:36 pm, Bob S. <removed_email_address@domain.invalid>
This topic is locked and can not be replied to.