I have a form which utilize Zend_Form_Element_File like this:

class Forms_Attachment extends Zend_Form
{
    function init()
    {
        $this->addElement(
            'file',
            'myFile',
            array(
                'label' => 'Attachment'
            )
        );
    }
}

The attachment form is utilized as a sub form

class Forms_Products_Delivery extends Zend_Form
{
        protected $elementDecorators = array(
        'viewHelper',
        array('label', array('tag' => 'p'))
    );
    
    protected $fileDecorators = array(
        'file',
        array('label', array('tag' => 'p'))
    );
    
    protected $hiddenDecorators = array(
        'viewHelper'
    );
    
    protected $subFormDecorators = array(
        'formElements',
        'fieldset'
    );
    function init()
    {
        $attachmentForm = new Forms_Attachment();
        $attachmentForm->setIsArray(true);
        $attachmentForm->setElementDecorators($this->elementDecorators);
        $attachmentForm->setElementDecorators($this->fileDecorators, array('myFile'));
        $attachmentForm->setDecorators($this->subFormDecorators);
        $this->addSubForm($attachmentForm, 'attachments');
    }
}

when rendering form get this result

Product Attachments

Attachment

Title

Description

while I need to have

Product Attachments

Attachment

Title

Description

The difference is that the file fields is not properly rendered using the Zend_Form_Decorator_File, however I can't use 'viewRender' decorator as it throws an error. If I use "file" decorator in conjunction with 'viewRenderer' I simply get two instances of the file field one incorrect and one correct.