Model.php

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<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 4.3.2 or newer
 *
 * @package             CodeIgniter
 * @author              ExpressionEngine Dev Team
 * @copyright   Copyright (c) 2006, EllisLab, Inc.
 * @license             http://codeigniter.com/user_guide/license.html
 * @link                http://codeigniter.com
 * @since               Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * CodeIgniter Model Class
 *
 * @package             CodeIgniter
 * @subpackage  Libraries
 * @category    Libraries
 * @author              ExpressionEngine Dev Team
 * @link                http://codeigniter.com/user_guide/libraries/config.html
 */
class Model {

        var $_parent_name = '';

        /**
         * Constructor
         *
         * @access public
         */
        function Model()
        {
                // If the magic __get() or __set() methods are used in a Model references can't be used.
                $this->_assign_libraries( (method_exists($this, '__get') OR method_exists($this, '__set')) ? FALSE : TRUE );
                
                // We don't want to assign the model object to itself when using the
                // assign_libraries function below so we'll grab the name of the model parent
                $this->_parent_name = ucfirst(get_class($this));
                
                log_message('debug', "Model Class Initialized");
        }

        /**
         * Assign Libraries
         *
         * Creates local references to all currently instantiated objects
         * so that any syntax that can be legally used in a controller
         * can be used within models.  
         *
         * @access private
         */     
        function _assign_libraries($use_reference = TRUE)
        {
                $CI =& get_instance();                          
                foreach (array_keys(get_object_vars($CI)) as $key)
                {
                        if ( ! isset($this->$key) AND $key != $this->_parent_name)
                        {                       
                                // In some cases using references can cause
                                // problems so we'll conditionally use them
                                if ($use_reference == TRUE)
                                {
                                        // Needed to prevent reference errors with some configurations
                                        $this->$key = '';
                                        $this->$key =& $CI->$key;
                                }
                                else
                                {
                                        $this->$key = $CI->$key;
                                }
                        }
                }               
        }

}
// END Model Class

/* End of file Model.php */
/* Location: ./system/libraries/Model.php */