How to preopulate zend file elements - zend-framework

Question

I have a Zend form like this:
$this->setName('Add Job');
$id = new Zend_Form_Element_Hidden('id');
$id->addFilter('Int');
$name = new Zend_Form_Element_Text('name');
$name->setLabel('Name')
->setRequired(true)
->addFilter('StripTags')
->addFilter('StringTrim')
->addValidator('NotEmpty');
$file = new Zend_Form_Element_File('file');
$file->setLabel('File')
->setRequired(true);
$category = new Zend_Form_Element_Checkbox('category');
$category->setLabel('Express?')
->setRequired(true)
->setCheckedValue('2')
->setUncheckedValue('1');
$submit = new Zend_Form_Element_Submit('submit');
$submit->setAttrib('id', 'submitbutton');
The "add" action is working fine but I'm not working on the "edit" action using this in my controller:
$id = $this->_getParam('id', 0);
if ($id > 0) {
$jobs = new Application_Model_DbTable_Jobs();
$form->populate($jobs->getJob($id));
}
and the form prepopulates just fine except for the file element. In the DB, I've got the filename saved and I'd like to display it in the edit form somehow - is there a standard way of handling this in Zend?
Thanks,
Phil

Answer 1

You cannot prepopulate a file-input-element.
That is not a restriction by Zend_Form. The html input-file-element has no "value" attribute.

Answer 2

i used a trick, to pass the filename to the view, so one can for example show the image next to the upload. In your form type this:
$this->getElement('image')->setAttrib('class', $this->_myParams['data']['image']);
$image->setDecorators(array(
'File',
array('ViewScript', array('viewScript' => '/ditta/_image.phtml', 'placement' => false)))
);/
then in the viewscript use
$image = $this->element->getAttrib('class');//get name of file
$this->element->setAttrib('class', '');//delete class