如何在fuelCMS 1.4中使has_many选择器可拖放排序？

Question

我已经创建了一个模型并添加了用于选择多个产品的$has_many。这是正常工作，但我不能使选定的产品拖放排序。我知道这是可能的，我也见过。但我在文档中找不到任何说明如何完成此操作的内容。这是我的模型：

<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
require_once(FUEL_PATH.'models/Base_module_model.php');

/**
 * This model handles setting up the form fields for our contact form
 *
 */

class Products_category_model extends Base_module_model {

    public $required = array('name', 'published');
    public $has_many  = array('products' => array(FUEL_FOLDER => 'Products_model'));


    function __construct()
    {
        parent::__construct('w_product_categories');
    }

    /*
        This will provide the list of records for display in the Admin Panel
        Note how the "excerpt" will display, but truncated

        Because we are using some MySQL functions in our select statement,
        we pass FALSE in as the second parament to prevent CI auto escaping of fields
    */
    function list_items($limit = null, $offset = null, $col = 'name', $order = 'asc', $just_count = false)
    {
        $this->db->select('id, name, published', FALSE);
        $data = parent::list_items($limit, $offset, $col, $order);
        return $data;
    }

    function form_fields($values = array(), $related = array())
    {
        $fields = parent::form_fields($values, $related);
        return $fields;
    }
}

class Product_category_model extends Base_module_record {
}

Answer 1

所以我发现这很简单。我在表单字段函数中添加了以下内容：

    // Makes the has many drag and drop sortable.
    $fields['products']['sorting'] = TRUE;
    $fields['products']['after_html'] = "<div style=\"clear:both;font-style:italic\">NOTE: you can sort selected product to your choosing by clicking on the product and then dragging it into the desired placement in the list</div>";