tyler_paginate.rb

# written by Tyler Montgomery tyler[dot]a[dot]montgomery[at]gmail   
#---
# tyler_paginate accepts and will_paginate collection and the standard link_to_remote options to build ajaxy 
# pagination links
#---
# in your view:
#  <%= tyler_paginate @collection, :url=>{:action=>:pagination_action, :id=>@some_object_id}, :update=>"some_div" %>
# generates something like: < previous 11-20 of 457 next >
#---
# in your controller
# def pagination_action
#   @collection = SomeModel.paginate(...)
#   render :partial => "/some_partial_to_render"
# end
 def tyler_paginate(collection, opts={} )        
       #next / prev / pages
       page_count = WillPaginate::ViewHelpers.total_pages_for_collection(collection)
       pagination_method = collection.first.class.to_s.downcase + "_pagination"
       start = ((collection.current_page-1) * collection.per_page ) + 1
     	 last = (start + collection.per_page - 1) > collection.total_entries ? collection.total_entries : (start + collection.per_page - 1)
       header = "#{start} - #{last} of #{collection.total_entries}"
     if collection.total_entries > collection.per_page 
       if page_count > 1 
       	if collection.offset != 0 
       	   opts[:url][:page] = collection.previous_page 
           previous_link =	"<a style=\"cursor:pointer; font-size:12px\" onclick=\"#{remote_function opts}\">	< previous </a>"
       	end 
       	unless collection.current_page + 1 > page_count 
       	  opts[:url][:page] = collection.next_page  
           next_link =		"<a style=\"cursor:pointer; font-size:12px\" onclick=\"#{remote_function opts}\">	next > 	</a>"
       	end 
        end    
      end
      "<span style=\"font-size:12px\">#{previous_link.to_s||="" } #{header.to_s} #{next_link.to_s||=""} </span>"
     end