pagination

Hi    IN MY CONTROLLER

def search_sd_ticket     @search_sd_ui_hash=params[:sd_ticket]     puts @search_sd_ui_hash     @sd_ticket_number=@search_sd_ui_hash[:number]     puts @search_sd_ui_hash[:number]     @sd_ticket_status_id=@search_sd_ui_hash[:service_desk_status_id]    @sd_ticket_priority_id=@search_sd_ui_hash[:service_desk_priority_id]   @sd_ticket_primary_assignee=@search_sd_ui_hash[:primary_assignee]     @sd_ticket_start_date=@search_sd_ui_hash[:start_date]     @sd_ticket_end_date=@search_sd_ui_hash[:end_date]     @date_condition=nil

    #if @sd_ticket_start_date=="" or @sd_ticket_end_date==""      # flash[:notice] = "Start date and end date are needed "       # render :action => 'search_sd_ticket_ui'     #end

          #@search_sd_ticket_result=ServiceDeskTicket.find(:all, :conditions => "created_on > @sd_ticket_start_date AND created_on < @sd_ticket_end_date")

          # step 1: set the variables you'll need             page = (params[:page] ||= 1).to_i             items_per_page = 20             offset = (page - 1) * items_per_page           @search_sd_ticket_result = ServiceDeskTicket.find_where(:all ) do |sd|                                      sd.number.downcase =~ "%"+@sd_ticket_number.downcase+"%"                                      sd.service_desk_status_id== @sd_ticket_status_id                                      sd.service_desk_priority_id== @sd_ticket_priority_id                                      sd.primary_assignee== @sd_ticket_primary_assignee                                      sd.created_on <=> (@sd_ticket_start_date..@sd_ticket_end_date) if !@sd_ticket_start_date.empty? and !@sd_ticket_end_date.empty?                                  end

@item_pages = Paginator.new(self, @search_sd_ticket_result.length, items_per_page, page) @search_sd_ticket_result = @search_sd_ticket_result[offset..(offset + items_per_page - 1)]

end

AND MY VIEW

<%= link_to('previous', :page => @item_pages.current.previous) if @item_pages.current.previous %>

<% puts @search_sd_ui_hash[:number]%> <%= link_to('next', :page => @item_pages.current.next,:sd_ticket=>@search_sd_ui_hash) if @item_pages.current.next %>

FIRST PAGE OK .BUT WHEN I CLICK NEXT ERROR

You have a nil object when you didn't expect it! The error occurred while evaluating nil.downcase

WHAT MAY BE THE REASON Sijo