where to save custom autoloaders in zend? - php

Question

I am trying to use phpThumb in my application by making a custom autoloader.
class My_Loader_Autoloader_PhpThumb implements Zend_Loader_Autoloader_Interface {
static protected $php_thumb_classes = array(
'PhpThumb' => 'PhpThumb.inc.php',
'ThumbBase' => 'ThumbBase.inc.php',
'PhpThumbFactory' => 'ThumbLib.inc.php',
'GdThumb' => 'GdThumb.inc.php',
'GdReflectionLib' => 'thumb_plugins/gd_reflection.inc.php',
);
/**
* Autoload a class
*
* #param string $class
* #return mixed
* False [if unable to load $class]
* get_class($class) [if $class is successfully loaded]
*/
public function autoload($class) {
$file = APPLICATION_PATH . '/../library/PhpThumb/' . self::$php_thumb_classes[$class];
if (is_file($file)) {
require_once($file);
return $class;
}
return false;
}
}
i saved this file as PhpThumb.php in the loaders/Autoloader folder. Then added this line to the bootstrap file:
Zend_Loader_Autoloader::getInstance()->pushAutoloader(new My_Loader_Autoloader_PhpThumb());
But it produces an error saying the class was not found. I am guessing that the 'CustomLoader_PhpThumb.php' needs to be saved somewhere else. Any idea guys ?
Update1:
Bootstrap.php file contents
<?php
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{
protected function _initAutoload()
{
$autoLoader=Zend_Loader_Autoloader::getInstance();
$resourceLoader=new Zend_Loader_Autoloader_Resource(array(
'basePath'=>APPLICATION_PATH,
'namespace'=>'',
'resourceTypes'=>array(
'form'=>array(
'path'=>'forms/',
'namespace'=>'Form_'
),
'models'=>array(
'path'=>'models/',
'namespace'=>'Model_'
),
)
));
//return $autoLoader;
$resourceLoader->addResourceType('loader', 'loaders/', 'My_Loader_');
$autoLoader->pushAutoloader($resourceLoader);
$autoLoader->pushAutoloader(new My_Loader_Autoloader_PhpThumb());
}
}
?>

Answer 1

I'm also using PhpThumb and the same autoloader. In my case however it is called My_Loader_Autoloader_PhpThumb and is located in APPLICATION_PATH . '/loaders/Autoloader/PhpThumb.php.
In my Bootstrap.php, first I load the loaders path to the Zend_Loader_Autoloader and then I push the My_Loader_Autoloader_PhpThumb autoloader as follows:
$autoLoader = Zend_Loader_Autoloader::getInstance();
$resourceLoader = new Zend_Loader_Autoloader_Resource(array(
'basePath' => APPLICATION_PATH,
'namespace' => '',
));
$resourceLoader->addResourceType('loader', 'loaders/', 'My_Loader_');
$autoLoader->pushAutoloader($resourceLoader);
$autoLoader->pushAutoloader(new My_Loader_Autoloader_PhpThumb());
Hope this will help.

Answer 2

PhpThumb.php should be saved to library/CustomLoader folder, and you should setup autoloader for this class also, for example in application.ini:
autoloaderNamespaces[] = "CustomLoader_"
or in Bootstrap.php:
$autoloader->registerNamespace('CustomLoader_');
I couldn't try, I hope it works!

Answer 3

I did it in another way, long more easy, without any autoloader, just using "My".
1.- Create a phpThumbFolder with all the files of the library into project/library/My/PhpThumb
2.- Create a file named PhpThumbFactory.php into that folder with the following content:
require_once('ThumbLib.inc.php');
class My_PhpThumb_PhpThumbFactory
{
public static function create ($filename = null, $options = array(), $isDataStream = false)
{
return PhpThumbFactory::create($filename, $options, $isDataStream);
}
}
3.- Enjoy:
public function editimageAction()
{
//rutaImg is the physical path to my images defined in application.ini
$rutaImg = Zend_Registry::get('config')->rutaImg. "test.jpg";
//Call to our "gateway" class
$thumb = My_PhpThumb_PhpThumbFactory::create($rutaImg);
//Resize
$thumb->adaptiveResize(20, 20);
//Show
$thumb->show();
$this->_helper->viewRenderer->setNoRender();
$this->_helper->layout->disableLayout();
}
I hope it can help anyone ;)
P.D. The "gateway" class is to avoid modifying any code of the library, so any possible update is easy.