using acts_as_ferret in non Latin languages

Hi all,

I want to use acts_as_ferret in persian language, i have installed
ferret and acts as ferret successfully and write model and controller
code like the following but by all parameter there is no results.
please review this code and guide me to solve this problem.

require 'acts_as_ferret'
  require 'rubygems'
  require 'ferret'

  include Ferret

    has_many :works
    validates_presence_of :code
    acts_as_ferret({:fields => [:fname, :lname] }, {:analyzer =>
[ابپتثجچحخدذرزصضسشطظکگفقلمنهی ]+/,false)})

Controller :

def search
    @page_title = "Search"
    if params[:commit] == "Search" || params[:q]
      @person = MPhone.find_by_contents(params[:q])
      unless @person.size > 0[:notice] = "No books found matching your criteria"