By archard on

I'm creating a module uses a custom content type (created through the module, not CCK) that needs to be able to upload images and get information from that image to associate with the node. I know you're gonna say it would make my life easier if I just used CCK or the Image module or something, but I really need the image uploading mechanism to be independent of other modules for this module to do what it needs to do.

I know how to make an upload field using hook_form(), but where to go from there? This is what I have for the form hook.


function poster_form(&$node) {
	$type = node_get_types('type', $node);

	if ($type->has_title) {
		$form['title'] = array(
			'#type' => 'textfield',
			'#title' => check_plain($type->title_label),
			'#required' => TRUE,
			'#default_value' => $node->title,
			'#weight' => -5,
		);
	}
	$form['poster']['#attributes'] = array('enctype' => "multipart/form-data");
	$form['poster'] = array(
		'#type' => 'file',
		'#title' => t('Upload your picture'),
	);
	$form['#submit'] = array('upload_form_submit');
	
	return $form;
}

I just don't really know where to go from there. How do I take the information from the file upload field, upload it to the files directory, and get other information I want from the uploaded image. I understand you're supposed to use a callback function for the submit field, which I've set to upload_form_submit. What exactly is supposed to be in this function that will make the upload form do magical things?

⋅ Categories: Drupal 6.x

Comments

oligoelemento’s picture

oligoelemento commented

I'm interested in solving the same problem.

archard’s picture

archard commented

Yes, you have to use the file_save_upload() function in your validate/submit callback. It will return a file object which you can then manipulate.

jesusDrupal’s picture

jesusDrupal commented 

	$validators = array();
	$destino = file_directory_path();
  	if ($file = file_save_upload('upload', $validators, $destino)) {
		$destino = file_directory_path() . '/imagenes/actvproys/';
		file_move($file, $destino, FILE_EXISTS_REPLACE);

In my case i uploaded the image and then i moved it to another location because Drupal by default stores
the images in sites/default/files. So i created a folder inside 'files' where i store my images. If i tried to
store them out of 'files' folder i couldn't store them. I don't know the reason.

Hope this help you!!!