How to access custom Zend Form Element?

I created a Phone.php file in inside application/forms/elements directory. The class signature is as follows: class Form_Element_Phone extends Zend_Form_Element_Xhtml

In my Bootstrap I have the following:

$autoLoader = new Zend_Application_Module_Autoloader( array(
                                            'namespace' => '',
                                            'basePath' => APPLICATION_PATH ) );

            return $autoLoader;

I thought this would autoload the custom form element when I type $phone = new Form_Element_Phone( 'phone' ); in my form object in application/forms directory. Why did this not work? Shouldn't everything under the application directory be accessible in this manner because of the code in the Bootstrap file??? I am getting Fatal error: Class 'Form_Element_Phone' not found error.

I also tried $this-&g开发者_如何学JAVAt;addElementPrefixPath('Form_Element', APPLICATION_PATH . '/forms/elements'); in the init function of my form class. But it did not change anything. What am I doing wrong? I thank you in advance for your assistance.

Try this Men

 public function _initAutoload()
    {    

        $resourceLoader = new Zend_Loader_Autoloader_Resource(array(
                 'basePath'  =>APPLICATION_PATH,
                 'namespace' => '',
                 'resourceTypes' => array(
                      'form'  => array(
                           'path'      => 'forms/',
                           'namespace' => 'Form_',  
                         ),
                        'model' => array(
                              'path' => 'models/',
                              'namespace' => 'Model_'
                         ),

                         'validator' =>array(
                             'path'       => 'validators/',
                             'namespace'  => 'Validator_'  
                         ), 
                         'plugin' => array(
                              'path' => 'plugins/',
                              'namespace' => 'Plugin_'
                         ),
                         'helper' => array(
                              'path' => 'helpers/',
                              'namespace' => 'Helper_'
                        ),
                      ),
                 ));

      $modelLoader = new Zend_Application_Module_Autoloader(array(
                     'namespace' => '',
                     'basePath'  => APPLICATION_PATH.'/modules/default' ));
      return $modelLoader;
      return $resourceLoader;
       }

Try to check you form inside. Maybe you did mistake when call it. Like:

class Form_SomeForm extends Zend_Form

Check it And Check in Controller when you ask for the form

If you set up your autoloader in your global config file with just a namespace, you should be able to avoid any complicated custom code to set this up. In my application.ini, I have the following:

appnamespace = "Application"

ZF's resource loader has a default location for forms in APPLICATION_PATH/forms. So with the above, my form class names start with Application_. To use a custom form element, you could create APPLICATION_PATH/forms/Element/Phone.php, and use the class name Application_Form_Element_Phone. I tried this just now and it works great. If the Application prefix on your class names is too long, you could replace it with something shorter, like App or My.

As mentioned, you will have to register the empty namespace with the Autoloader. To do this, you will have to use Zend_Loader_Autoloader_Resource. You should add this to the application Bootstrap. Note: most of this was already mentioned by @user854029, but forgot the Form_Element_ namespace.

protected _initAutoload()
{
    // the __construct of this class registers this resource with Zend_Loader_Autoloader
    new Zend_Loader_Autoloader_Resource(array(
        // This base path prepends paths defined in the resourceTypes below
        'basePath'  => APPLICATION_PATH,
        'namespace' => '',
        'resourceTypes' => array(
            'form' => array(
                'path' => 'forms/',
                'namespace' => 'Form_'
            ),
            // the key 'element' is an arbitrary name I used, it's not special
            'element' => array(
                // Now we set the path we need to append to basePath set above                
                'path' => 'forms/elements',
                // And now we have to declare the namespace
                'namespace' => 'Form_Element_'
            ),
            'model' => array(
                'path' => 'models/',
                'namespace' => 'Model_'
            )
            /** You can add the rest here as need **/
        )
    ));
    // Note: you don't have to return anything

}

On a further note, consider moving custom class to your Application's library directory.

EDIT

protected _initAutoload()
{
    //Removed Autoloader_Resoure and Replaced with Module_Autoloader
     new Zend_Application_Module_Autoloader(array(
        'basePath'  => APPLICATION_PATH,
        'namespace' => '',
        'resourceTypes' => array(
            'element' => array(  
                'path'      => 'forms/elements', // This is custom
                'namespace' => 'Form_Element'
            )
        )
    ));

}