Wordpress - Custom products database - MakeUseOf.com

<?php
/*
Plugin Name: Product Database
Description: Versatile product database
Version: 1.0.0
Author: James Bruce
Author URI: http://make-money-blogging-ideas.com/
 */
if (!class_exists("Products")) {
    class Products {

        function Products(){
            add_action('init', array(&$this,'products_init'));
            register_activation_hook(__FILE__, 'my_rewrite_flush');
        }

        // declare the new post type 'sites'
        function products_init() {
            $args = array(
                'labels' => array(
                    'name' => __('Products'),
                    'singular_name' => __('Product'),
                ),
                'public' => true,
                'rewrite' => array("slug" => "products"), // permalink structure
                'supports' => array('thumbnail','custom-fields','title','editor','comments'),
                'has_archive' => true
            );

            register_post_type( 'products' , $args );

        }

        function my_rewrite_flush() {
          products_init();
          flush_rewrite_rules();
        }



    }
if (!isset($pd_plugin_instance)) $pd_plugin_instance = new Products();




?>