Question

Basically I am trying to display @arts = @users.arts, where User has many arts and @users is a plurality of users. I am getting back and undefined method for arts. Thanks in advance

Answer 1

You’re not able to do this because you’re calling an instance method on something that’s not an instance. A “plurality of users” in this case is a sort of Array, and it does not have the arts relationship defined. What you need is:

@arts = @users.collect { |user| user.arts }.flatten

You can also use other more advanced methods to collect all of these in one query but that should be a start.