- - begin code - -
class Band < ActiveRecord::Base belongs_to :tours end
class Tour < ActiveRecord::Base has_one :bands end
First, this should be has_one :band, not :bands
- - begin code - -
<p><label for="band_id">Band</label><br> <%= select("band", "band_id", Band.find_all.collect {|p| [ p.name, p.id ] }) %>
I don't know how did you built your DB schema, but it should be something like this