Rails: order using a has_many/belongs_to relationship

Question

I was wondering if it was possible to use the find method to order the results based on a class\'s has_many relationship with another class. e.g.

# has the colum         


        

Answer 1

You need to join the related table to the request.

@result = DogTag.find(:all, :joins => :dog, :order => 'dogs.name')

Note that dogs is plural in the :order statement.