module RicoLiveGrid    def find_livegrid_content_for(model, fields)    order_by = params.select{|k,v| ((/s[0..9]*/ =~ k) == 0)}.map{|k,v| "#{fields[k[1..-1].to_i]} #{v}"}.join ','     order_by = "#{fields[0]}" if order_by.nil? or order_by.empty?    model.find( :all,                 :order  => order_by,                :limit  => params[:page_size],                :conditions => livegrid_conditions(fields),                :offset => params[:offset])      end    def livegrid_count_for(model, fields)    model.count :conditions => livegrid_conditions(fields)  end  def livegrid_conditions(fields)    params[:f].map{|k,v| "#{fields[k.to_i]} #{v[:op]} '%#{v['0'][0..-2]}%'"}.join ' AND ' if params[:f]  endend