[support] Building "add more" feature for managed_file form field type
Kayode Odeyemi
dreyemi at gmail.com
Sat Sep 17 17:07:01 UTC 2011
Hello,
I'm trying to provide the ability to upload more than one file in the
configuration of one of my custom blocks.
I got the basics, but everytime I click on upload button, I get this:
*Notice*: Undefined index: uec_core_socials_block_image in *
uec_core_socials_block_image_validate()
**Notice*: Undefined index: files_fieldset in
*uec_core_socials_block_image_validate()
*
*
*I don't know why I'm getting this because the index is there and works for
other blocks I have created that way.* *I'm also following the ajax_examples
module in the examples module.
*
*Below is the snippet I'm working with:
function uec_core_block_configure($delta = '') {
$form = array();
switch($delta) {*
*case 'uec_core_socials':
$form['#tree'] = TRUE;
$form['files_fieldset'] = array(
'#type' => 'fieldset',
'#title' => t('Upload social icons'),
// Set up the wrapper so that AJAX will be able to
replace the fieldset.
'#prefix' => '<div id="names-fieldset-wrapper">',
'#suffix' => '</div>',
);
// Build the fieldset with the proper number of files. We'll
use
// $form_state['num_files'] to determine the number of
managed_file fields to build.
if (empty($form_state['num_files'])) {
$form_state['num_files'] = 1;
}
// provide ability to add more files
for ($i = 0; $i < $form_state['num_files']; $i++) {
$form['files_fieldset']['uec_core_socials_block_image'][$i] = array(
'#type' => 'managed_file',
'#title' => t('Image'),
'#description' => t('Upload an image to represent
social icons, allowed extensions: jpg, jpeg, png, gif'),
'#default_value' =>
variable_get('uec_core_socials_block_image', ''),
'#element_validate' =>
array('uec_core_socials_block_image_validate'),
'#upload_location' => 'public://' //If this is not
set, the file will be uploaded to temporary dir. Then use file_move to move
it to drupal default file system location
);
}
$form['files_fieldset']['add_file'] = array(
'#type' => 'submit',
'#value' => t('Add one more'),
'#submit' => array('uec_core_socials_add_more_add_one'),
// See the examples in ajax_example.module for more
details on the
// properties of #ajax.
'#ajax' => array(
'callback' => 'uec_core_socials_add_more_callback',
'wrapper' => 'names-fieldset-wrapper',
),
);
break;
}
return $form;
}
/**
* Callback for both ajax-enabled buttons.
*
* Selects and returns the fieldset with the names in it.
*/
function uec_core_socials_add_more_callback($form, $form_state) {
return $form['files_fieldset'];
}
/**
* Submit handler for the "add-one-more" button.
*
* Increments the max counter and causes a rebuild.
*/
function uec_core_socials_add_more_add_one($form, &$form_state) {
$form_state['num_files']++;
$form_state['rebuild'] = TRUE;
}
function uec_core_socials_block_image_validate($form, &$form_state) {
variable_set('uec_core_socials_block_image',
$form_state['values']['files_fieldset']['uec_core_socials_block_image']);
//variable_set('uec_core_socials_block_image',
$form_state['values']['uec_core_socials_block_image']);
}
I'll like to know what I'm doing wrong.
--
Odeyemi 'Kayode O.
http://www.sinati.com. t: @charyorde
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