[eluser]helmutbjorg[/eluser]
FYI: I have updated this library and changed it so that it is an extension to the loader class which is kind of what I wanted to do in the first place but couldn't think of a clean way to do it. I like this better than having it as a separate library as we don't really need another library for this purpose if we don't have to!
/application/libraries/MY_Loader.php
Code:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/*
* MY_Loader Class
*
* @package CodeIgniter
* @category Libraries
* @version 1.0
*
* Extending the Loader library to allow for loading of third
* party classes with the option of feeding the parameters.
*
* For example sometimes you want to load a class and pass
* values to the constructor like so:
*
* $object = new Object('username', 'password');
*
* However with the standard library loader you can only pass
* a single array to the constructor. With the new param $feed_params
* set to true, the library will be loaded with the parameters fed
* to the contructor. If false (default) the loading will be passed
* back to the regular load function.
*
* Using the example above you would load the class like so:
*
* $this->load->library('object', array('myusername', 'mypassword'), null, true);
*
* And presto!
*
*/
class MY_Loader extends CI_Loader {
// Custom library loading with optional feeding of parameters to constructor
function library($library = '', $params = NULL, $object_name = NULL, $feed_params = FALSE) {
// If not feeding the params we can pass to parent function
if($feed_params==false) return parent::library($library, $params, $object_name);
// Otherwise load the class by feeding the parameters
if($library=='') return false;
// Clean up class name
$library = str_replace(EXT, '', trim($library, '/')); // Get the class name, and while we're at it trim any slashes
$subdir = ''; // We may need to handle a subdirectory or two
// Was the path included with the class name?
if(strpos($library, '/') !== false) {
$x = explode('/', $library); // Separate the filename from the path
$library = end($x); // Reset the variable now that we know the actual filename
unset($x[count($x)-1]); // Kill the filename from the array
$subdir = implode($x, '/').'/'; // Glue the path back together, sans filename
}
// If no object name use the class name
if(empty($object_name)) $object_name = $library;
// Grab a codeigniter instance
$CI =& get_instance();
// Has this class already been loaded into the codeigniter object
if(isset($CI->$object_name) && strtolower(get_class($CI->$object_name))==strtolower($library)) return true;
// Is this position free in the codeigniter object
if(isset($CI->$object_name)) show_error('Unable to load '.$object_name.' as object name already exists.');
// Does the file need to be included
if(!class_exists($library)) {
// Path to the class file
$filepath = APPPATH.'libraries/'.$subdir.$library.EXT;
// Does the file exist
if(!file_exists($filepath)) show_error('Unable to load requested class file: '.$library);
// Include the file
include_once($filepath);
}
// Create a reflected object
$object = new ReflectionClass($library);
// Force parameters to be an array
if(!is_array($params)) $params = array();
// Instantiate the object with dynamic parameters
$CI->$object_name = $object->newInstanceArgs($params);
return true;
}
}
/* End of file MY_Loader.php */
/* Location: ./application/libraries/MY_Loader.php */
