gistfile1.txt

model Ticket.rb
  def self.filter(options={})


    return Ticket.paginate_by_sql(sql, :page => options[:page])
tickets_controller.rb

    @open_tickets = Ticket.filter(
                            :assigned_user_id => params[:filter].nil? ? "" : params[:filter]['assigned_user_id'],
                            :di_version       => params[:filter].nil? ? "" : params[:filter]['di_version'],
                            :priority_id      => params[:filter].nil? ? "" : params[:filter]['priority_id'],
                            :ticket_number    => params[:filter].nil? ? "" : params[:filter]['ticket_number'],
                            :rts_version      => params[:filter].nil? ? "" : params[:filter]['rts_version'],
                            :subject          => params[:filter].nil? ? "" : params[:filter]['subject'],
                            :status_id        => 'open',
                            :enterprise_id    => @enterprise_id,
                            :page             => params[:page].nil? ? 1 : params[:page]
                             )
  end
e na linha 32 é apenas uma chamada à tupla open_tickets.