0xSventek

var facebook_tools = new function() {
  
  this.init   = function () {  
    if (FB.getSession() == null) {
      this.login();
    } else {
      facebook_session      = FB.getSession();
    }
    return this;
  };

0xSventek

class Project < ActiveRecord::Base
  
  def next
    self.class.where("created_at > ?", self.created_at).order("created_at asc").first
  end
  
  def previous
    self.class.where("created_at < ?", self.created_at).order("created_at desc").first
  end
end

0xSventek

class ProjectsController < ApplicationController
  
  before_filter :get_base_project, :only => [:next,:previous]
  before_filter :force_js_content_type, :only => [:next,:previous]
  
  caches_action :next, :cache_path => proc{ |c| "/projects/" + (c.get_base_project.next.cache_key rescue "nil")}, :expires_in => 15.minutes
  caches_action :previous, :cache_path => proc{ |c| "/projects/" + (c.get_base_project.previous.cache_key rescue "nil")}, :expires_in => 15.minutes
  
  def next
    @project           = @base_project.next

0xSventek

get '/projects/:base_project_id/next', :to => 'projects#next', :as => :next_project
get '/projects/:base_project_id/previous', :to => 'projects#previous', :as => :previous_project