Requirement: Modify the file description field to change the label and help text for a specific content type. This feature is provided by file field and a simple form_alter was not useful to modify the description label of the file field.
<?php
/**
* hook_field_widget_form_alter()
*/
function ji_custom_field_widget_form_alter(&$element, &$form_state, $context) {
if(isset($element['#field_name']) && isset($context['form']['#node_edit_form'])
&& $context['form']['#node_edit_form'] == TRUE) {
$field_name = $element['#field_name'];
switch ($field_name) {
case 'field_document_file':
foreach (element_children($element) as $key => $child) {
// Add the new process function to the element
$element[$key]['#process'][] = 'ji_custom_file_field_widget_process';
}
}
function ji_custom_file_field_widget_process($element, &$form_state, $form) {
if(isset($element['description']['#title'])){
$element['description']['#title'] = 'Version';
$element['description']['#description'] = 'If required, please enter the version number of the file';
}
return $element;
}
?>