I have a model like this:
class Artist
include DataMapper::Resource
property :id, Serial
property :artistname, String, :length => 512
has n, :tracks, :through => Resource
end
class Track
include DataMapper::Resource
property :id, Serial
property :title, String, :length => 512
has n, :artists, :through => Resource
end
I want to get all tracks that belongs to an artist and select the
track title along with the artistname:
tracks = Artist.get(params[:id]).tracks
This gives me the track objects belonging to the artist, but how do I
get the artistname?
I could do a second query to fetch this (artist =
Artist.get(params[:id])) but that seems unnecessary.
Any hints appreciated.
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