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<?php
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/**
* @file
* FileField field hooks and callbacks.
*/
function filefield_field_settings_form($field) {
drupal_add_js(drupal_get_path('module', 'filefield') .'/filefield.js');
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$form = array();
$form['list_field'] = array(
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'#type' => 'radios',
'#title' => t('List field'),
'#options' => array(0 => t('Disabled'), 1 => t('Enabled')),
'#default_value' => $field['list_field'] === '' ? 0 : (int) $field['list_field'],
'#description' => t('The "list" option lets a user choose if a file should shown in a list when viewing the content after creation.'),
'#attributes' => array('class' => 'filefield-list-field'),
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);
$form['list_default'] = array(
'#type' => 'checkbox',
'#title' => t('Files listed by default'),
'#default_value' => $field['list_default'] === '' ? 1 : (int) $field['list_default'],
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);
$form['description_field'] = array(
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'#type' => 'radios',
'#title' => t('Description field'),
'#default_value' => $field['description_field'] === '' ? 0 : (int) $field['description_field'],
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'#options' => array(0 => t('Disabled'), 1 => t('Enabled')),
'#description' => t('When enabled, will display a text field where users may enter a description about the uploaded file.'),
);
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return $form;
}
function filefield_field_settings_validate($field) {
}
function filefield_field_settings_save($field) {
return array('list_field', 'list_default', 'description_field');
}
function filefield_field_settings_database_columns($field) {
return array(
'fid' => array('type' => 'int', 'not null' => FALSE),
'list' => array('type' => 'int', 'size' => 'tiny', 'not null' => FALSE),
'data' => array('type' => 'text', 'serialize' => true),
);
}
function filefield_field_settings_views_data($field) {
$data = content_views_field_views_data($field);
$db_info = content_database_info($field);
$table_alias = content_views_tablename($field);
// Set our own field handler so that we can hook the file formatter
// configuration table into the options form.
// By defining the relationship, we already have a "Has file" filter
// plus all the filters that Views already provides for files.
// No need for having a filter by ourselves.
unset($data[$table_alias][$field['field_name'] .'_fid']['filter']);
// Add a relationship for related file.
$data[$table_alias][$field['field_name'] .'_fid']['relationship'] = array(
'base' => 'files',
'field' => $db_info['columns']['fid']['column'],
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'handler' => 'content_handler_relationship',
'label' => t($field['widget']['label']),
'content_field_name' => $field['field_name'],
);
return $data;
}
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/**
* Implementation of CCK's hook_field().
*/
function filefield_field_load($node, $field, &$items, $teaser, $page) {
if (empty($items)) {
return array();
}
foreach ($items as $delta => $item) {
// Despite hook_content_is_empty(), CCK still doesn't filter out
// empty items from $op = 'load', so we need to do that ourselves.
if (empty($item['fid']) || !($file = field_file_load($item['fid']))) {
$items[$delta] = NULL;
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}
else {
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$item['data'] = unserialize($item['data']);
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$items[$delta] = array_merge($item, $file);
}
}
return array($field['field_name'] => $items);
}
function filefield_field_insert($node, $field, &$items, $teaser, $page) {
return filefield_field_update($node, $field, $items, $teaser, $page);
}
function filefield_field_update($node, $field, &$items, $teaser, $page) {
// Accumulator to gather current fid to compare with the original node
// for deleting replaced files.
$curfids = array();
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foreach ($items as $delta => $item) {
$items[$delta] = field_file_save($node, $item);
// Remove items from the array if they have been deleted.
if (empty($items[$delta]) || empty($items[$delta]['fid'])) {
$items[$delta] = NULL;
}
else {
$curfids[] = $items[$delta]['fid'];
}
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}
// if this is a new node... there are no
// old items to worry about.
if ($node->is_new) {
return;
}
// Delete items from original node if no new revision was created.
$orig = node_load($node->nid);
// If there are, figure out which ones must go.
if ($node->revision == 0 && !empty($orig->$field['field_name'])) {
foreach ($orig->$field['field_name'] as $oitem) {
if (!in_array($oitem['fid'], $curfids)) {
// For hook_file_references, remember that this is being deleted.
$oitem['field_name'] = $field['field_name'];
field_file_delete($oitem);
}
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}
function filefield_field_delete_revision($node, $field, &$items, $teaser, $page) {
foreach ($items as $delta => $item) {
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// For hook_file_references, remember that this is being deleted.
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$item['field_name'] = $field['field_name'];
if (field_file_delete($item)) {
$items[$delta] = NULL;
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}
}
function filefield_field_delete($node, $field, &$items, $teaser, $page) {
foreach ($items as $delta => $item) {
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// For hook_file_references, remember that this is being deleted.
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$item['field_name'] = $field['field_name'];
field_file_delete($item);
}
}
function filefield_field_sanitize($node, $field, &$items, $teaser, $page) {
foreach ($items as $delta => $item) {
// Cleanup $items during node preview.
if (empty($item['fid']) || !empty($item['delete'])) {
$items[$delta] = NULL;
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continue;
}
// Load the complete file if a filepath is not available.
if (!empty($item['fid']) && empty($item['filepath'])) {
$items[$delta] = array_merge($item, field_file_load($item['fid']));
}
// Add nid so formatters can create a link to the node.
$items[$delta]['nid'] = $node->nid;
}
}