array(
'arguments' => array('element' => NULL),
),
'file_cck_formatter_default' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_file' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_preview' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_preview_file' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_preview_formats' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_preview_formats_file' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_thumbnail' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_thumbnail_open' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_formatter_thumbnail_download' => array('arguments' => array('element' => NULL), 'function' => 'theme_file_cck_formatter_generic'),
'file_cck_field_remove' => array(
'arguments' => array('form' => NULL),
),
);
}
function theme_file_cck_field_remove(&$form) {
$id = $form['value']['#parents'][1];
$form[$id] = array(
'#id' => $form['#field_name'] .'_remove_'. $id,
'#name' => $form['#field_name'] .'_remove['. $id .']',
'#type' => 'checkbox',
'#title' => t('Remove'),
'#value' => ($field = $form['#field_name'] .'_remove') && isset($_POST[$field]) ? (isset($_POST[$field][$id]) ? 1 : 0) : $form['#is_checked'],
);
return drupal_render($form);
}
/**
* Implementation of hook_menu().
*/
function file_cck_menu() {
return array(
'admin/settings/file/cck' => array(
'title' => 'CCK',
'page callback' => 'drupal_get_form',
'page arguments' => array('file_cck_admin_settings'),
'access arguments' => array('administer site configuration'),
'file' => 'file_cck.admin.inc',
),
'file_cck/js' => array(
'page callback' => 'file_cck_js',
'access arguments' => array('access content'),
'type' => MENU_CALLBACK,
),
);
}
/**
* Implementation of hook_nodeapi().
*/
function file_cck_nodeapi(&$node, $op, $a3, $a4) {
switch ($op) {
case 'prepare':
// The session variable is cleared from the unsaved file uploads.
unset($_SESSION['file_cck_files']);
break;
case 'insert':
case 'update':
if ($node->type != 'file') {
// Executing sqls to update cck fields.
_file_cck_db_update();
unset($_SESSION['file_cck_files']);
}
break;
case 'view':
$type = content_types($node->type);
foreach ($type['fields'] as $field => $data) {
if ($data['type'] == 'file_cck' && is_array($node->$field)) {
$db_info = content_database_info($data);
$order = isset($_POST[$field]) ? array_keys($_POST[$field]) : array_keys($node->$field);
$multiple = count($order) > 1;
$delta = 0;
foreach ($order as $o) {
unset($fid);
if (isset($_SESSION['file_cck_files']) && isset($_SESSION['file_cck_files']['s_'. $field .'_'. $o]) && ($file = $_SESSION['file_cck_files']['s_'. $field .'_'. $o]) && is_object($file)) {
$fid = 's_'. $field .'_'. $o;
}
else if ($nid = db_result(db_query('SELECT '. $db_info['columns']['value']['column'] .' FROM {'. $db_info['table'] .'} WHERE vid = %d'. ($multiple ? ' AND delta = '. $o : ''), $node->vid))) {
$fid = $nid;
}
if (isset($fid) && (!isset($_POST[$field .'_remove']) || !isset($_POST[$field .'_remove'][$o]))) {
// The items array is populated just for the first item, therefore I copy it
// and populate with the right value and the weight.
if ($delta > 0)
$node->content[$field]['field']['items'][$delta] = $node->content[$field]['field']['items'][0];
$node->content[$field]['field']['items'][$delta]['#item']['value'] = $fid;
$node->content[$field]['field']['items'][$delta]['#weight'] = $delta;
}
$delta++;
}
}
}
break;
}
}
/**
* Implementation of hook_form_alter().
*/
function file_cck_form_alter(&$form, $form_state, $form_id) {
if (isset($form['type']) && isset($form['#node'])) {
// A node form.
// If a file is already uploaded, the corresponding message
// is set next to the file upload field.
if ($form['type']['#value'] .'_node_form' == $form_id) {
$node = $form['#node'];
$type = content_types($node->type);
foreach ($type['fields'] as $field => $data) {
if ($data['type'] == 'file_cck') {
$form['#attributes']['enctype'] = 'multipart/form-data';
$db_info = content_database_info($data);
foreach ($form[$field] as $delta => $field_data) {
if (!is_array($field_data))
continue;
if ($delta === $field .'_add_more') {
$form[$field][$delta]['#submit'] = array('node_form_submit_build_node');
$form[$field][$delta]['#ahah'] = array('path' => 'file_cck/js', 'wrapper' => strtr($field, '_', '-') .'-add-more-wrapper', 'progress' => array('type' => 'bar', 'message' => t('Please wait...')));
$form[$field][$delta]['#suffix'] .= '';
continue;
}
$title = NULL;
if (isset($_SESSION['file_cck_files']) && isset($_SESSION['file_cck_files']['s_'. $field .'_'. $delta]) && ($file = $_SESSION['file_cck_files']['s_'. $field .'_'. $delta]) && is_object($file)) {
$title = $file->name;
}
else if (isset($node->vid) && ($nid = db_result(db_query('SELECT '. $db_info['columns']['value']['column'] .' FROM {'. $db_info['table'] .'} WHERE vid = %d'. (!empty($data['multiple']) ? ' AND delta = '. $delta : ''), $node->vid)))) {
$node_file = node_load($nid);
$title = $node_file->title;
}
if (isset($title))
$form[$field][$delta]['#prefix'] = t('A file %file has already been uploaded. If you upload another file the current file data will be replaced.', array('%file' => $title));
$form[$field][$delta]['#theme'] = 'file_cck_field_remove';
$form[$field][$delta]['#is_checked'] = isset($form_state['clicked_button']) && isset($form_state['clicked_button']['#post']) && isset($form_state['clicked_button']['#post'][$field .'_remove']) && isset($form_state['clicked_button']['#post'][$field .'_remove'][$delta]) ? 1 : 0;
// Reseting #required flag, since it does not allow uploading files.
// Will check if the file is uploaded in the validate hook.
$form[$field][$delta]['#required'] = '';
}
}
}
$form['file_cck_current_field'] = array('#type' => 'hidden', '#value' => '');
}
}
}
//////////////////////////////////////////////////////////////////////////////
// CCK API hooks
/**
* Implementation of hook_field_info().
*/
function file_cck_field_info() {
return array(
'file_cck' => array(
'label' => t('File'),
'description' => t('Store file in the system. A file node will be created.'),
'callbacks' => array(
'tables' => CONTENT_CALLBACK_DEFAULT,
'arguments' => CONTENT_CALLBACK_DEFAULT,
),
),
);
}
/**
* Implementation of hook_field_settings().
*/
function file_cck_field_settings($op, $field) {
switch ($op) {
case 'database columns':
if ($field['type'] == 'file_cck') {
return array(
'value' => array('type' => 'int', 'not null' => FALSE, 'sortable' => TRUE),
);
}
break;
case 'views data':
$data = content_views_field_views_data($field);
return $data;
}
}
/**
* Implementation of hook_field().
*/
function file_cck_field($op, &$node, $field, &$items, $teaser, $page) {
switch ($op) {
case 'validate':
$db_info = content_database_info($field);
$order = isset($_POST[$field['field_name']]) ? array_keys($_POST[$field['field_name']]) : array(0);
$multiple = count($order) > 1;
$delta = 0;
foreach ($order as $o) {
if ($upload = file_save_upload($field['field_name'] .'_'. $o, array_merge(file_get_validators(), array('file_cck_upload_validate' => array(isset($field['widget']['extensions_allowed']) ? $field['widget']['extensions_allowed'] : ''))))) {
$node_file = (object)array('nosave' => TRUE);
if (!file_node_save($node_file, $upload)) {
drupal_set_message(t("Error saving file %file. Please, contact site administrator.", array('%file' => $upload->filename)), 'error');
}
else {
$fid = 's_'. $field['field_name'] .'_'. $o;
$node_file->file->sid = $fid;
$_SESSION['file_cck_files'][$fid] = $node_file->file;
}
}
else if ($delta == 0 && $field['required'] == 1 && (!isset($_SESSION['file_cck_files']) || !isset($_SESSION['file_cck_files']['s_'. $field['field_name'] .'_'. $delta]))) {
if (isset($_POST[$field['field_name'] .'_remove'][$o]) || !db_result(db_query('SELECT '. $db_info['columns']['value']['column'] .' FROM {'. $db_info['table'] .'} WHERE vid = %d'. ($multiple ? ' AND delta = '. $o : ''), $node->vid))) {
form_set_error('files]['. $field['field_name'] .'_'. $delta, t('%title field is required.', array('%title' => $field['widget']['label'])), 'error');
}
}
$delta++;
}
break;
case 'insert':
case 'update':
$db_info = content_database_info($field);
$order = isset($_POST[$field['field_name']]) ? array_keys($_POST[$field['field_name']]) : array(0);
$multiple = count($order) > 1;
$delta = 0;
foreach ($order as $o) {
// I cannot modify field entry here since cck module resets changes made to the fields.
// Therefore I create updates queue which is executed from the hook_nodeapi().
$nid = NULL;
if (isset($_POST[$field['field_name'] .'_remove'][$o])) {
_file_cck_db_update(array('action' => $field['multiple'] != 1 ? 'remove' : 'delete', 'table' => $db_info['table'], 'column' => $db_info['columns']['value']['column'], 'multiple' => $multiple, 'delta' => $delta, 'vid' => $node->vid));
}
else if (($file = file_save_upload($field['field_name'] .'_'. $o, array_merge(file_get_validators(), array('file_cck_upload_validate' => array(isset($field['widget']['extensions_allowed']) ? $field['widget']['extensions_allowed'] : ''))))) || (isset($_SESSION['file_cck_files']) && isset($_SESSION['file_cck_files']['s_'. $field['field_name'] .'_'. $o]) && $file = $_SESSION['file_cck_files']['s_'. $field['field_name'] .'_'. $o])) {
$file_node = (object)array('file' => $file);
if (FILE_CCK_OG_INHERITANCE)
_file_propagate_og($node, $file_node);
_file_propagate_terms($node, $file_node, array('all' => FILE_CCK_VOCABULARIES_ALL, 'og' => FILE_CCK_OG_VOCABULARIES, 'vocabs' => unserialize(FILE_CCK_VOCABULARIES)));
$file_node = file_node_create((array)$file_node);
$nid = $file_node->nid;
}
else {
if ($nid = db_result(db_query('SELECT '. $db_info['columns']['value']['column'] .' FROM {'. $db_info['table'] .'} WHERE vid = %d'. ($multiple ? ' AND delta = '. $o : ''), isset($node->old_vid) ? $node->old_vid : $node->vid))) {
$file_node = node_load($nid);
if (node_access('update', $file_node)) {
if (FILE_CCK_OG_INHERITANCE)
_file_propagate_og($node, $file_node);
_file_propagate_terms($node, $file_node, array('all' => FILE_CCK_VOCABULARIES_ALL, 'og' => FILE_CCK_OG_VOCABULARIES, 'vocabs' => unserialize(FILE_CCK_VOCABULARIES)));
node_save($file_node);
}
}
$nid = $nid ? $nid : NULL;
}
if (isset($nid) || $field['multiple'] != 1) {
_file_cck_db_update(array('action' => 'update', 'table' => $db_info['table'], 'column' => $db_info['columns']['value']['column'], 'multiple' => $multiple, 'delta' => $delta, 'file_nid' => $nid, 'nid' => $node->nid, 'vid' => $node->vid));
$delta++;
}
}
break;
}
}
/**
* Implementation of hook_content_is_empty().
*/
function file_cck_content_is_empty($item, $field) {
if (empty($item['value'])) {
return TRUE;
}
return FALSE;
}
/**
* Implementation of hook_field_formatter_info().
*/
function file_cck_field_formatter_info() {
return array(
'default' => array('label' => t('first handler'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'file' => array('label' => t('file'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'preview' => array('label' => t('preview'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'preview_file' => array('label' => t('preview and file'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'preview_formats' => array('label' => t('preview and other formats'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'preview_formats_file' => array('label' => t('preview, other formats and file'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'thumbnail' => array('label' => t('thumbnail'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'thumbnail_open' => array('label' => t('thumbnail with an open link'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
'thumbnail_download' => array('label' => t('thumbnail with a download link'), 'multiple values' => CONTENT_HANDLE_CORE, 'field types' => array('file_cck')),
);
}
/**
* Proxy theme function for file_cck field formatters
*/
function theme_file_cck_formatter_generic($element) {
$fid = $element['#item']['value'];
if (preg_match('/^s_/', $fid)) {
$file = $_SESSION['file_cck_files'][$fid];
$node = (object)array('file' => $file);
$id = preg_replace('/^s_/', '', $fid);
}
else if (is_numeric($fid)) {
$node = node_load($fid);
$file = $node->file;
if (!is_object($file) || !node_access('view', $node))
return '';
$file->name = $node->title;
$id = $fid;
}
else {
return '';
}
switch ($element['#formatter']) {
case 'file':
$data = array(
'file' => theme('file_render', $file),
);
return theme('file_show', $data);
break;
case 'preview':
$data = array(
'preview' => FILE_SHOW_PREVIEWS ? file_render_previews($file, 'files_'. $id) : '',
);
return theme('file_show', $data);
break;
case 'preview_file':
$data = array(
'preview' => FILE_SHOW_PREVIEWS ? file_render_previews($file, 'files_'. $id) : '',
'file' => theme('file_render', $file),
);
return theme('file_show', $data);
break;
case 'preview_formats':
$data = array(
'preview' => FILE_SHOW_PREVIEWS ? file_render_previews($file, 'files_'. $id) : '',
'generated' => FILE_SHOW_GENERATED ? file_render_generated($file, 'files_'. $id) : '',
);
return theme('file_show', $data);
break;
case 'preview_formats_file':
$data = array(
'preview' => FILE_SHOW_PREVIEWS ? file_render_previews($file, 'files_'. $id) : '',
'generated' => FILE_SHOW_GENERATED ? file_render_generated($file, 'files_'. $id) : '',
'file' => theme('file_render', $file),
);
return theme('file_show', $data);
break;
case 'thumbnail':
if (defined('FILE_IMAGE_THUMBNAIL_RESOLUTION'))
$thumbnail = file_get_image($file, 'file_image_thumbnail', explode('x', FILE_IMAGE_THUMBNAIL_RESOLUTION));
return isset($thumbnail) ? $thumbnail : t('no thumbnail');
break;
case 'thumbnail_open':
if (defined('FILE_IMAGE_THUMBNAIL_RESOLUTION'))
$thumbnail = file_get_image($file, 'file_image_thumbnail', explode('x', FILE_IMAGE_THUMBNAIL_RESOLUTION));
$thumbnail = isset($thumbnail) ? $thumbnail : t('no thumbnail');
return !empty($file->nid) ? l($thumbnail, 'node/'. $file->nid, array('html' => TRUE)) : $thumbnail;
break;
case 'thumbnail_download':
if (defined('FILE_IMAGE_THUMBNAIL_RESOLUTION'))
$thumbnail = file_get_image($file, 'file_image_thumbnail', explode('x', FILE_IMAGE_THUMBNAIL_RESOLUTION));
$thumbnail = isset($thumbnail) ? $thumbnail : t('no thumbnail');
return !empty($file->nid) ? l($thumbnail, 'file/'. $file->nid .'/download/'. $file->vid, array('html' => TRUE)) : $thumbnail;
break;
case 'default':
default:
$file_handlers = file_handlers_for($file);
foreach (file_get_mime_handlers() as $handler => $data) {
if (array_key_exists($handler, $file_handlers) && $data['enabled'] == 1 && function_exists($handler .'_render')) {
break;
}
}
return isset($handler) ? file_wrapper_html($node, $handler) : '';
break;
}
}
/**
* Returns the file links section.
*
* @param $file
* A file object as returned from file_node_load().
* @param $id
* ID of the preview in case there are several previews on the same page.
*
* @return
* The HTML section of the file formats.
*/
function file_cck_render_links($file, $id = 0) {
if (empty($file->nid))
return '';
$output = '';
$links = l('open', 'node/'. $file->nid) . (FILE_VIEW_LINK ? ' | '. l('view', 'file/'. $file->nid .'/view/'. $file->vid) : '') .' | '. l('download', 'file/'. $file->nid .'/download/'. $file->vid);
$output .= t('File') .' '. (isset($file->name) ? '"'. check_plain($file->name) .'" ': '') . t('options') .': '. $links;
$output .= '
';
return $output;
}
/**
* Implementation of hook_widget_info().
*/
function file_cck_widget_info() {
return array(
'file_cck_file' => array(
'label' => t('File'),
'field types' => array('file_cck'),
'multiple values' => CONTENT_HANDLE_CORE,
'callbacks' => array(
'default value' => CONTENT_CALLBACK_DEFAULT,
),
),
);
}
/**
* Implementation of hook_widget().
*/
function file_cck_widget(&$form, &$form_state, $field, $items, $delta = 0) {
$element = array(
'#type' => $field['widget']['type'],
'#default_value' => isset($items[$delta]) ? $items[$delta] : '',
);
return $element;
}
/**
* Implementation of hook_widget_settings().
*/
function file_cck_widget_settings($op, $widget) {
switch ($op) {
case 'form':
$form = array();
$form['extensions_allowed'] = array(
'#type' => 'textfield',
'#title' => t('Allowed file extensions'),
'#default_value' => isset($widget['extensions_allowed']) ? $widget['extensions_allowed'] : '',
'#description' => t('Only files with those extensions will be possible to upload to the website. Separate extensions with a space and do not include the leading dot. Empty means that all file types are allowed.') . (module_exists('file_restriction') ? ' '. l(t('Restrictions'), 'admin/settings/file/restriction') . t(' module\'s extension restrictions are also applied.') : ''),
);
return $form;
case 'validate':
break;
case 'save':
return array('extensions_allowed');
}
}
//////////////////////////////////////////////////////////////////////////////
// FAPI hooks
/**
* Implementation of FAPI hook_elements().
*/
function file_cck_elements() {
return array(
'file_cck_file' => array(
'#input' => TRUE,
'#columns' => array('value'),
'#delta' => 0,
'#process' => array('file_cck_file_process'),
),
);
}
/**
* FAPI theme for an individual text elements.
*/
function theme_file_cck_file($element) {
return $element['#children'];
}
/**
* Process an individual element.
*/
function file_cck_file_process($element, $edit, $form_state, $form) {
$delta = $element['#delta'];
if (module_exists('file_restriction')) {
$extensions_allowed = trim(isset($form['#field_info'][$element['#field_name']]['widget']['extensions_allowed']) ? $form['#field_info'][$element['#field_name']]['widget']['extensions_allowed'] : '');
file_restriction_js(strtr('#edit-'. $element['#field_name'] .'-'. $delta .'-value', '_', '-'), !empty($extensions_allowed) ? array('extensions_allowed' => $extensions_allowed) : array());
}
$element['value'] = array(
'#name' => 'files['. $element['#field_name'] .'_'. $delta .']',
'#type' => 'file',
'#title' => $element['#title'],
'#description' => $element['#description'],
'#required' => $element['#required'],
'#default_value' => NULL,
);
return $element;
}
//////////////////////////////////////////////////////////////////////////////
// Ahah uploads
/**
* Menu callback for AHAH additions.
*/
function file_cck_js() {
// Load the form from the Form API cache.
$cache = cache_get('form_'. $_POST['form_build_id'], 'cache_form');
$form = $cache->data;
$form_state = array('values' => $_POST);
// Handle new uploads and merge tmp files into node-files.
file_cck_form_submit($form, $form_state);
// Build a replacement form.
$field_form = _file_cck_form($form, $form_state);
$js = '';
if (module_exists('file_restriction')) {
$extensions_allowed = trim(isset($field_form['#field_info']['widget']['extensions_allowed']) ? $field_form['#field_info']['widget']['extensions_allowed'] : '');
$delta = 0;
while ($delta < $field_form['#field_count']) {
$js .= file_restriction_js(strtr('#edit-'. $field_form['#field_info']['field_name'] .'-'. $delta .'-value', '_', '-'), !empty($extensions_allowed) ? array('extensions_allowed' => $extensions_allowed) : array(), TRUE);
$delta++;
}
}
// Save the altered cache.
$cache->data = $form;
cache_set('form_'. $_POST['form_build_id'], $cache->data, 'cache_form', $cache->expire);
// Render the form for output.
$field_form += array(
'#post' => $_POST,
'#programmed' => FALSE,
'#tree' => FALSE,
'#parents' => array(),
);
drupal_alter('form', $field_form, array(), 'file_cck_js');
$form_state = array('submitted' => FALSE);
$field_form = form_builder('file_cck_js', $field_form, $form_state);
$output = theme('status_messages') . drupal_render($field_form) . $js;
// We send the updated cck file form.
// Don't call drupal_json(). ahah.js uses an iframe and
// the header output by drupal_json() causes problems in some browsers.
print drupal_to_js(array('status' => TRUE, 'data' => $output));
exit;
}
/**
* Save new uploads and store them in the session to be associated to the node.
*
* @param $form
* A form array.
* @param $form_state
* User ubmitted data.
*/
function file_cck_form_submit($form, &$form_state) {
// Clicked submit button name is sent only when no file is uploaded.
// Oterwise hidden form element is used.
foreach ($form_state['values'] as $k => $v) {
if ($v == t('Add another item')) {
$field_name = str_replace('_add_more', '', $k);
break;
}
}
$field_name = isset($field_name) ? $field_name : $form_state['values']['file_cck_current_field'];
$form_state['values']['file_cck_current_field'] = $field_name;
$type = content_types($form['#node']->type);
$field = $type['fields'][$field_name];
$i = 0;
do {
if ($upload = file_save_upload($field_name .'_'. $i, array_merge(file_get_validators(), array('file_cck_upload_validate' => array(isset($field['widget']['extensions_allowed']) ? $field['widget']['extensions_allowed'] : ''))))) {
$node = (object)array('nosave' => TRUE);
if (!file_node_save($node, $upload)) {
drupal_set_message(t("Error saving file %file. Please, contact site administrator.", array('%file' => $upload->filename)), 'error');
}
else {
// Find the next session id and save it with the uploaded file.
// Remove 's_' when calculating next key.
$node->file->sid = 's_'. $field_name .'_'. $i;
$node->file->field = $field_name;
$node->file->delta = $i;
_file_cck_file($form_state, $node->file);
}
}
$i++;
} while (array_key_exists($i, $form_state['values'][$field_name]));
}
/**
* Attaches a file to the current files list.
*
* @param $form_state
* A reference to the form state array.
* @param $file
* A file object to be attached.
*/
function _file_cck_file(&$form_state, $file) {
// We do not allow the same file to be uploaded several times.
$is_uploaded = FALSE;
if (isset($form_state['values']['files'])) {
foreach ($form_state['values']['files'] as $fid => $file_attached) {
if ($file_attached['uri'] == $file->uri && $file_attached['field'] == $file->field) {
$is_uploaded = TRUE;
drupal_set_message(t("The file %file is already attached.", array('%file' => $file->name)), 'notice');
break;
}
}
}
if (!$is_uploaded) {
// Add default list and weight parameters.
$file->weight = isset($form_state['values']['files']) ? count($form_state['values']['files']) + 1 : 1;
$fid = isset($file->sid) ? $file->sid : 'n_'. $file->nid;
$_SESSION['file_cck_files'][$fid] = $file;
$form_state['values']['files'][$fid] = (array)$file;
}
}
/**
* Generates form inside cck field.
*
* @param $form
* A form array
* @param $files
* An array of the file objects
*
* @return
* A form array.
*/
function _file_cck_form(&$form, &$form_state) {
$field = $form_state['values']['file_cck_current_field'];
$group = module_exists('fieldgroup') ? _fieldgroup_field_get_group($form['#node']->type, $field) : NULL;
$field_form = $group ? $form[$group][$field] : $form[$field];
$count = count(array_filter($field_form, create_function('$a', 'return is_array($a) && isset($a[\'#type\']) && $a[\'#type\'] == \'file_cck_file\';')));
// Arrange the files. To add a correct weight of the new field, the current weights should be not positive.
foreach ($form_state['values'][$field] as $delta => $data) {
$field_form[$delta]['#weight'] = $data['_weight'];
$field_form[$delta]['_weight']['#default_value'] = $data['_weight'];
$field_form[$delta]['_weight']['#delta'] = $count;
}
// Add a notice that the file has been uploaded.
if (isset($form_state['values']['files'])) {
foreach ($form_state['values']['files'] as $fid => $file) {
$file = (object)$file;
if (isset($file->field) && $file->field == $field)
$field_form[$file->delta]['#prefix'] = t('A file %file has already been uploaded. If you upload another file the current file data will be replaced.', array('%file' => $file->name));
}
}
// Create a new form element and reset default values.
$field_form[$count] = $field_form[0];
$field_form[$count]['#default_value']['value'] = 0;
$field_form[$count]['_weight']['#default_value'] = $count;
$field_form[$count]['#weight'] = $count;
$field_form[$count]['#delta'] = $count;
unset($field_form[$count]['#prefix']);
if ($group)
$form[$group][$field] = $field_form;
else
$form[$field] = $field_form;
return array($field => $field_form, '#field_info' => $form['#field_info'][$field], '#field_count' => $count + 1);
}
//////////////////////////////////////////////////////////////////////////////
// Auxiliary functions
/**
* Since hook_field() does not allow changing of the field value and
* direct writes to the database are overwritten in the content.module,
* here we accumulate the field change sqls which are executted later.
*
* @param $sql
* SQL statement to be executed after hook_field() is over.
* @param $args
* An array of arguments to be passed to the sql.
*/
function _file_cck_db_update($action = array()) {
static $actions = array();
if (!empty($action)) {
$actions[] = $action;
}
else {
foreach ($actions as $action) {
switch ($action['action']) {
case 'update':
$sql = 'SELECT nid FROM {'. $action['table'] .'} WHERE vid = %d'. ($action['multiple'] ? ' AND delta = %d' : '');
$args = array_merge(array($action['vid']), $action['multiple'] ? array($action['delta']) : array());
if (db_result(db_query($sql, $args))) {
if (isset($action['file_nid']))
db_query('UPDATE {'. $action['table'] .'} SET '. $action['column'] .' = %d WHERE vid = %d'. ($action['multiple'] ? ' AND delta = %d' : ''), array_merge(array($action['file_nid']), $args));
else
db_query('UPDATE {'. $action['table'] .'} SET '. $action['column'] .' = null WHERE vid = %d'. ($action['multiple'] ? ' AND delta = %d' : ''), $args);
}
else {
if (isset($action['file_nid']))
db_query('INSERT INTO {'. $action['table'] .'} ('. $action['column'] .', nid, vid'. ($action['multiple'] ? ', delta' : '') .') VALUES (%d, %d, %d'. ($action['multiple'] ? ', %d' : '') .')', array_merge(array($action['file_nid'], $action['nid']), $args));
else
db_query('INSERT INTO {'. $action['table'] .'} ('. $action['column'] .', nid, vid'. ($action['multiple'] ? ', delta' : '') .') VALUES (null, %d, %d'. ($action['multiple'] ? ', %d' : '') .')', array_merge(array($action['nid']), $args));
}
break;
case 'remove':
$sql = 'UPDATE {'. $action['table'] .'} SET '. $action['column'] .' = null WHERE vid = %d'. ($action['multiple'] ? ' AND delta = %d' : '');
$args = array_merge(array($action['vid']), $action['multiple'] ? array($action['delta']) : array());
db_query($sql, $args);
break;
case 'delete':
$sql = 'DELETE FROM {'. $action['table'] .'} WHERE vid = %d'. ($action['multiple'] ? ' AND delta = %d' : '');
$args = array_merge(array($action['vid']), $action['multiple'] ? array($action['delta']) : array());
db_query($sql, $args);
break;
}
}
$actions = array();
}
}
/**
* A file upload validation function.
*
* @param $file
* A file object.
* @param $extensions
* A space separated list of allowed extensions.
*
* @return
* An array with an error messages.
*/
function file_cck_upload_validate($file, $extensions = '') {
$extensions = trim($extensions);
return !empty($extensions) ? file_validate_extensions($file, $extensions) : array();
}