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I think this is outdated due to #2500527: Rewrite \Drupal\file\Controller\FileWidgetAjaxController::upload() to not rely on form cache →
If that is incorrect re-open this issue and add a comment.
Thanks
I received the following error whenever I was creating a custom audio field.
Notice: Undefined index: in file_ajax_upload() (line 258 of modules/file/file.module).
Here is the code that the error is referring too:
// Get the current element and count the number of files.
$current_element = $form;
foreach ($form_parents as $parent) {
$current_element = $current_element[$parent];
}
$current_file_count = isset($current_element['#file_upload_delta']) ? $current_element['#file_upload_delta'] : 0;
Here is the code to reproduce the error:
audio.install
<?php
/**
* Implements hook_field_schema().
*/
function audio_field_schema($field) {
return array(
'columns' => array(
'fid' => array(
'description' => 'The mp3 {file_managed}.fid being referenced in this field.',
'type' => 'int',
'not null' => FALSE,
'unsigned' => TRUE,
),
'ogg_fid' => array(
'description' => 'The ogg {file_managed}.fid being referenced in this field.',
'type' => 'int',
'not null' => FALSE,
'unsigned' => TRUE,
),
'uid' => array(
'description' => "The {users}.uid being referenced in this field.",
'type' => 'int',
'not null' => FALSE,
'unsigned' => TRUE,
),
'title' => array(
'description' => "Audio title text",
'type' => 'varchar',
'length' => 128,
'not null' => FALSE,
),
'desc' => array(
'description' => "Audio description text",
'type' => 'text',
'size' => 'big',
'not null' => FALSE,
),
'length' => array(
'description' => 'The length of the audio in seconds.',
'type' => 'int',
'unsigned' => TRUE,
),
),
'indexes' => array(
'fid' => array('fid', 'ogg_fid'),
'uid' => array('uid'),
),
'foreign keys' => array(
'fid' => array(
'table' => 'file_managed',
'columns' => array('fid' => 'fid', 'ogg_fid' => 'fid'),
),
'uid' => array(
'table' => 'users',
'columns' => array('uid' => 'uid'),
),
),
);
}
audio.module
<?php
/**
* Implements hook_field_info().
*/
function audio_field_info() {
return array(
'audio' => array(
'label' => t('Audio'),
'description' => t('This field handles HTML5 Audio'),
'default_widget' => 'audio_simple',
'default_formatter' => 'audio_player',
'settings' => array(
'uri_scheme' => 'private',
),
'instance_settings' => array(
'file_extensions' => 'mp3',
'file_directory' => 'audio/mp3',
),
),
);
}
/**
* Implements hook_field_is_empty().
*/
function audio_field_is_empty($item, $field) {
if ($field['type'] == 'audio') {
return file_field_is_empty($item, $field);
}
return FALSE;
}
/**
* Implements hook_field_widget_info().
*/
function audio_field_widget_info() {
return array(
'audio_simple' => array(
'label' => t('Audio'),
'description' => t('Add audio by file type.'),
'field types' => array('audio'),
'settings' => array(
'progress_indicator' => 'throbber',
),
'behaviors' => array(
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
'default value' => FIELD_BEHAVIOR_DEFAULT,
),
),
);
}
/**
* Implements hook_field_widget_form().
*/
function audio_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
if ($instance['widget']['type'] == 'audio_simple') {
// Add display_field setting to field because file_field_widget_form() assumes it is set.
$field['settings']['display_field'] = 0;
$elements = file_field_widget_form($form, $form_state, $field, $instance, $langcode, $items, $delta, $element);
foreach (element_children($elements) as $delta) {
// Add all extra functionality provided by the image widget.
$elements[$delta]['#process'][] = 'audio_field_widget_process';
}
if ($field['cardinality'] == 1) {
// If there's only one field, return it as delta 0.
if (empty($elements[0]['#default_value']['fid'])) {
$elements[0]['#description'] = theme('file_upload_help', array('description' => $instance['description'], 'upload_validators' => $elements[0]['#upload_validators']));
}
} else {
$elements['#file_upload_description'] = theme('file_upload_help', array('upload_validators' => $elements[0]['#upload_validators']));
}
$elements = $elements[0];
unset($elements[0]);
}
return $elements;
}
/**
* An element #process callback for the audio field type.
*
* Expands the audio type to include the title, description, and ogg file fields.
*/
function audio_field_widget_process($element, &$form_state, $form) {
$item = $element['#value'];
$item['fid'] = $element['fid']['#value'];
$instance = field_widget_instance($element, $form_state);
$upload_validators = $element['#upload_validators'];
$upload_validators['file_validate_extensions'] = array('ogg');
$element['ogg_fid'] = array(
'#name' => 'blah',
'#type' => 'managed_file',
'#title' => t('ogg'),
'#upload_location' => 'private://audio/ogg',
'#upload_validators' => array(
'file_validate_extensions' => array('ogg'),
),
'#default_value' => !empty($item['ogg_fid']) ? $item['ogg_fid'] : '',
'#access' => (bool) $item['fid'],
'#description' => empty($item['ogg_fid']) ? theme('file_upload_help', array('description' => $instance['description'], 'upload_validators' => $upload_validators)) : null,
);
$element['title'] = array(
'#type' => 'textfield',
'#title' => t('Title'),
'#default_value' => isset($item['title']) ? $item['title'] : null,
'#access' => (bool) $item['fid'],
);
return $element;
}
/**
* Implements hook_field_presave().
*/
function audio_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
foreach ($items as $item) {
$fids = array(
$item['fid'],
$item['ogg_fid'],
);
foreach ($fids as $fid) {
if (!empty($fid)) {
$file = file_load($fid);
if (!empty($file->status)) {
$file->status = FILE_STATUS_PERMANENT;
file_save($file);
}
if (!empty($file) && !empty($entity_type) && !empty($id)) {
file_usage_add($file, 'audio', $entity_type, $id);
}
}
}
}
}
If you enable the module, then create an "Audio" field on a node, then you will need to upload an mp3 file (which works fine), after that you will get the ogg_fid field, upload the ogg file and you will receive the error. However, even with the error, the field will save properly.
I noticed that for some reason all of the "ogg_fid" data is being saved with a child of "fid", (look at the name of the form element in the HTML), however, I couldn't find a way to remove this child (which I assume is what is causing the error).
I'm assuming the code could be changed to something like this:
// Get the current element and count the number of files.
$current_element = $form;
foreach ($form_parents as $parent) {
if (!empty($current_element[$parent])) {
$current_element = $current_element[$parent];
}
}
$current_file_count = isset($current_element['#file_upload_delta']) ? $current_element['#file_upload_delta'] : 0;
However, I do not have enough experience with file.module to know if it will break something or not.
Closed: outdated
11.0 🔥
The change is currently missing an automated test that fails when run with the original code, and succeeds when the bug has been fixed.
After being applied to the 8.x branch, it should be considered for backport to the 7.x branch. Note: This tag should generally remain even after the backport has been written, approved, and committed.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
I think this is outdated due to #2500527: Rewrite \Drupal\file\Controller\FileWidgetAjaxController::upload() to not rely on form cache →
If that is incorrect re-open this issue and add a comment.
Thanks