File uploads using Zend_Form

MiK · #1 (**permalink**) 03-31-2008, 09:50 AM

Hello all

,
i'm trying to create a form with file upload using the Zend_Form component using ZF version 1.5.1.

I created the Zend_Form_Element_File component which, for some reason, was missing (while Zend_Form_Element_File exists...)

Here's my Zend/Form/Element/File.php :

PHP Code:


			
require_once 'Zend/Form/Element/Xhtml.php';



class Zend_Form_Element_File extends Zend_Form_Element_Xhtml

{

    public $helper = 'formFile';

}

And this is my controller action:

PHP Code:


			
function testAction()

{

     $form = new Zend_Form();

     $form->setAction('/this/test')

          ->setMethod('post');



     $file = $form->createElement('file', 'file');



     $form->addElement($file)

          ->addElement('submit', 'upload', array('label' => 'Upload File'));



     // Just to test if the file has really been processed...

     if ($this->getRequest()->isPost())

     {

        Zend_Debug::dump($_FILES);

        exit;

     }



    $this->view->form = $form;

    echo $this->view->render('testform.tpl');

}

This code will produce a small form with only one file upload field and the submit button, so it's really simple.

My problem is that i can't figure out some things:

1. How to set custom form enctype?
To handle file uploads i need to set it to 'multipart/form-data'. But i can't find anything to do such thing.. The only thing i know is that i should set some option(s) on the form decorator.

2. How to let Zend_Form to see file fields during form validation?
As seen on the ZF programming reference manual, the form is validated using:

PHP Code:


			
if ($form->isValid($_POST)) {

    // success!

} else {

    // failure!

}

Since php handles files upload using $_FILES superglobal array, maybe i could make some (dirty) thing like:

PHP Code:


			
$myPost = array_merge($_POST, $_FILES);

if ($form->isValid($myPost)) {

   // Processing form data ...

}

Could this be the quick&dirty solution ??

3. How to write validators for file fields ?
Maybe the method described in this post could be suitable for my needs..?

I tried to explain the thing as best as i could.
I'm not a native english-speaker, so please forgive me if i misspelled something.

Any help is appreciated.
Thank you all.

MiK · #2 (**permalink**) 03-31-2008, 11:21 AM

Quote:

Originally Posted by MiK

1. How to set custom form enctype?
To handle file uploads i need to set it to 'multipart/form-data'. But i can't find anything to do such thing.. The only thing i know is that i should set some option(s) on the form decorator.

Whoops i didn't noticed the Zend_Form::setAttrib() method!

PHP Code:


			
$form = new Zend_Form();

$form->setAttrib('enctype', 'multipart/form-data');

This has done the trick

MiK · #3 (**permalink**) 05-06-2008, 09:43 AM

Check out this: Akra’s DevNotes Blog Archive Simple Zend_Form File Upload Example

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