MY_Loader.php расширения загрузчика для подключения "глобальных моделей"

<?php
/**
 * MY_Loader Class
 *
 * Loads global_models
 *
 * @package CodeIgniter
 * @subpackage Libraries
 * @author snake.nf
 * @category Loader
 */
class MY_Loader extends CI_Loader
{
    function MY_Loader()
    {
 parent::CI_Loader();
    }

    /**
     * Global Model Loader
     *
     * This function lets users load and instantiate global models.
     *
     * @access public
     * @param string the name of the class
     * @param string name for the model
     * @param bool database connection
     * @return void
     */
    function global_model($model, $name = '', $db_conn = FALSE)
    {
 if (is_array($model))
 {
     foreach($model as $babe)
     {
  $this->model($babe);
     }
     return;
 }

 if ($model == '')
 {
     return;
 }

 // Is the model in a sub-folder? If so, parse out the filename and path.
 if (strpos($model, '/') === FALSE)
 {
     $path = '';
 }
 else
 {
     $x = explode('/', $model);
     $model = end($x);
     unset($x[count($x)-1]);
     $path = implode('/', $x).'/';
 }

 if ($name == '')
 {
     $name = $model;
 }

 if (in_array($name, $this->_ci_models, TRUE))
 {
     return;
 }

 $CI =& get_instance();
 if (isset($CI->$name))
 {
     show_error('The model name you are loading is the name of a resource that is already being used: '.$name);
 }

 $model = strtolower($model);

 if ( ! file_exists(APPPATH.'../global_models/'.$path.$model.EXT))
 {
     show_error('Unable to locate the model you have specified: '.$model);
 }

 if ($db_conn !== FALSE AND ! class_exists('CI_DB'))
 {
     if ($db_conn === TRUE)
  $db_conn = '';

     $CI->load->database($db_conn, FALSE, TRUE);
 }

 if ( ! class_exists('Model'))
 {
     load_class('Model', FALSE);
 }

 require_once(APPPATH.'../global_models/'.$path.$model.EXT);

 $model = ucfirst($model);

 $CI->$name = new $model();
 $CI->$name->_assign_libraries();

 $this->_ci_models[] = $name;
    }

}
?>

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