oldhaven/app/controllers/track_controller.rb

class TrackController < ApplicationController
  before_filter :authorize
  
  def update_length
    unless params[:track_id].nil?
      track = Track.find(params[:track_id])
      unless track.nil? or params[:length].nil?
        if track.length == nil or track.length.to_i == 0 and params[:length].to_i > 0
          track.length = params[:length].to_i
          track.save
          return render :json => { :result => :success }
        end
      end
    end
    render :json => { :result => :failed }
  end
  
  def report_unavailable
    track = Track.find(params[:id])
    unless track.nil? or track.available
      track.available = true
      track.save
      return render :json => { :status => :success }
    end
    render :json => { :status => :failed }
  end
  
  def report_bad
    track = Track.find(params[:id])
    unless track.nil?
      # Saving track file
      vote(params[:track_id], params[:owner_id], params[:audio_id], -1)
      return render :json => { :status => :success }
    end
    render :json => { :status => :failed }
  end

private

  def vote track_id, owner_id, audio_id, delta = 0
    track_file = TrackFile.find_or_create_by_track_id_and_owner_id_and_audio_id(
      track_id, owner_id, audio_id
    ){ |tf| tf.rating = 0 }
    track_file.rating += delta
    track_file.save
  end
end