<?xml version="1.0"?>
<schema version="0.3">
   <table name="btProductList">
      <field name="bID" type="I">
         <key />
         <unsigned />
      </field>
      <field name="categoryID" type="I"></field>
   </table>
</schema>

<?php 
defined('C5_EXECUTE') or die(_("Access Denied."));
class ProductListBlockController extends BlockController {
   
   protected $btTable = 'btProductList';
   protected $btInterfaceWidth = "250";
   protected $btInterfaceHeight = "110";

   public function getBlockTypeDescription() {
      return t("Embeds a Product List in your web page.");
   }
   
   public function getBlockTypeName() {
      return...