NameError when using acts_as_ferret

Rails
1

Hi all

I am getting this error when I am using

acts_as_ferret :fields =>[:competitor], :remote => true

NameError in PartController#index

uninitialized constant PartController::Competitor

My Model

class Competitor < ActiveRecord::Base

validates_presence_of :fee_earner_id, :notes

belongs_to :fee_earner
belongs_to :country
belongs_to :state
belongs_to :user

acts_as_ferret :fields =>[:competitor], :remote => true

end

My controller

class PartController < ApplicationController

@@total_company = 70

def index

@proscribeds = Competitor.paginate(:all, :order => sort , :page =>
params[:page], :per_page => @@total_company )

end

end