reference.inc in FileField Sources 6
Same filename and directory in other branches
A FileField extension to allow referencing of existing files.
The "hooks" in this file are not true hooks, they're called individually from the main filefield_sources.module in the corresponding hook by the same name. Any of these hooks could be broken out into a separate module.
File
sources/reference.incView source
<?php
/**
* @file
* A FileField extension to allow referencing of existing files.
*
* The "hooks" in this file are not true hooks, they're called individually
* from the main filefield_sources.module in the corresponding hook by the
* same name. Any of these hooks could be broken out into a separate module.
*/
define('FILEFIELD_SOURCE_REFERENCE_HINT_TEXT', 'example.png [fid:123]');
/**
* Implements hook_filefield_source_info().
*/
function filefield_source_reference_info() {
$source = array();
$source['reference'] = array(
'name' => t('Autocomplete reference textfield'),
'label' => t('Reference existing'),
'description' => t('Reuse an existing file by entering its file name.'),
'process' => 'filefield_source_reference_process',
'value' => 'filefield_source_reference_value',
'weight' => 1,
);
return $source;
}
/**
* Implements hook_menu().
*/
function filefield_source_reference_menu() {
$items = array();
$items['filefield/reference/%/%'] = array(
'page callback' => 'filefield_source_reference_autocomplete',
'page arguments' => array(
2,
3,
),
'access callback' => 'filefield_edit_access',
'access arguments' => array(
2,
3,
),
'file' => 'sources/reference.inc',
'type' => MENU_CALLBACK,
);
return $items;
}
/**
* Implements hook_theme().
*/
function filefield_source_reference_theme() {
return array(
'filefield_source_reference_element' => array(
'arguments' => array(
'element' => NULL,
),
'file' => 'sources/reference.inc',
),
'filefield_source_reference_autocomplete_item' => array(
'arguments' => array(
'file' => NULL,
),
'file' => 'sources/reference.inc',
),
);
}
/**
* Implements hook_filefield_source_settings().
*/
function filefield_source_reference_settings($op, $field) {
$return = array();
if ($op == 'form') {
$return['sources_reference'] = array(
'#title' => t('Autocomplete reference options'),
'#type' => 'fieldset',
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$return['sources_reference']['filefield_source_autocomplete'] = array(
'#title' => t('Match file name'),
'#options' => array(
'0' => t('Starts with string'),
'1' => t('Contains string'),
),
'#type' => 'radios',
'#default_value' => empty($field['filefield_source_autocomplete']) ? '0' : '1',
);
}
elseif ($op == 'save') {
$return[] = 'filefield_source_autocomplete';
}
return $return;
}
/**
* A #process callback to extend the filefield_widget element type.
*/
function filefield_source_reference_process($element, $edit, &$form_state, $form) {
$element['filefield_reference'] = array(
'#weight' => 100.5,
'#theme' => 'filefield_source_reference_element',
'#filefield_source' => TRUE,
// Required for proper theming.
'#filefield_sources_hint_text' => FILEFIELD_SOURCE_REFERENCE_HINT_TEXT,
);
$element['filefield_reference']['autocomplete'] = array(
'#type' => 'textfield',
'#autocomplete_path' => 'filefield/reference/' . $element['#type_name'] . '/' . $element['#field_name'],
'#description' => filefield_sources_element_validation_help($element['#upload_validators']),
);
$element['filefield_reference']['select'] = array(
'#name' => implode('_', $element['#array_parents']) . '_autocomplete_select',
'#type' => 'submit',
'#value' => t('Select'),
'#validate' => array(),
'#submit' => array(
'node_form_submit_build_node',
),
'#name' => $element['#name'] . '[filefield_reference][button]',
'#ahah' => array(
'path' => 'filefield/ahah/' . $element['#type_name'] . '/' . $element['#field_name'] . '/' . $element['#delta'],
'wrapper' => $element['#id'] . '-ahah-wrapper',
'method' => 'replace',
'effect' => 'fade',
),
);
return $element;
}
/**
* A #filefield_value_callback function.
*/
function filefield_source_reference_value($element, &$item) {
if (isset($item['filefield_reference']['autocomplete']) && strlen($item['filefield_reference']['autocomplete']) > 0 && $item['filefield_reference']['autocomplete'] != FILEFIELD_SOURCE_REFERENCE_HINT_TEXT) {
$matches = array();
if (preg_match('/\\[fid:(\\d+)\\]/', $item['filefield_reference']['autocomplete'], $matches)) {
$fid = $matches[1];
if ($file = field_file_load($fid)) {
// Remove file size restrictions, since the file already exists on disk.
if (isset($element['#upload_validators']['filefield_validate_size'])) {
unset($element['#upload_validators']['filefield_validate_size']);
}
// Check that the user has access to this file through hook_download().
if (!filefield_sources_file_access($file['filepath'])) {
form_error($element, t('You do not have permission to use the selected file.'));
}
elseif (filefield_sources_element_validate($element, (object) $file)) {
$item = array_merge($item, $file);
}
}
else {
form_error($element, t('The referenced file could not be used because the file does not exist in the database.'));
}
}
// No matter what happens, clear the value from the autocomplete.
$item['filefield_reference']['autocomplete'] = '';
}
}
/**
* Menu callback; autocomplete.js callback to return a list of files.
*/
function filefield_source_reference_autocomplete($type_name, $field_name, $filename) {
$field = content_fields($field_name, $type_name);
$items = array();
if (!empty($field)) {
$files = filefield_source_reference_get_files($filename, $field);
foreach ($files as $fid => $file) {
$items[$file->filename . " [fid:{$fid}]"] = theme('filefield_source_reference_autocomplete_item', $file);
}
}
drupal_json($items);
}
/**
* Theme the output of a single item in the autocomplete list.
*/
function theme_filefield_source_reference_autocomplete_item($file) {
$output = '';
$output .= '<div class="filefield-source-reference-item">';
$output .= '<span class="filename">' . check_plain($file->filename) . '</span> <span class="filesize">(' . format_size($file->filesize) . ')</span>';
$output .= '</div>';
return $output;
}
/**
* Theme the output of the autocomplete field.
*/
function theme_filefield_source_reference_element($element) {
$element['autocomplete']['#field_suffix'] = theme('submit', $element['select']);
return '<div class="filefield-source filefield-source-reference clear-block">' . theme('textfield', $element['autocomplete']) . '</div>';
}
/**
* Get all the files used within a particular field (or all fields).
*
* @param $file_name
* The partial name of the file to retrieve.
* @param $field
* Optional. A CCK field array for which to filter returned files.
*/
function filefield_source_reference_get_files($filename, $field = NULL) {
if (!isset($field)) {
foreach (content_fields() as $field) {
if ($field['type'] == 'filefield') {
$fields[] = $field;
}
}
}
else {
$fields = array(
$field,
);
}
$files = array();
foreach ($fields as $field) {
$db_info = content_database_info($field);
// 1 == contains, 0 == starts with.
$like = empty($field['widget']['filefield_source_autocomplete']) ? '%s%%' : '%%%s%%';
$result = db_query_range("SELECT f.* FROM {" . $db_info['table'] . "} c INNER JOIN {files} f ON c." . $db_info['columns']['fid']['column'] . " = f.fid WHERE f.filename LIKE '" . $like . "' AND f.status = 1 GROUP BY f.fid ORDER BY f.timestamp DESC", $filename, 0, 30);
while ($file = db_fetch_object($result)) {
$files[$file->fid] = $file;
}
}
return $files;
}
Functions
Name![]() |
Description |
---|---|
filefield_source_reference_autocomplete | Menu callback; autocomplete.js callback to return a list of files. |
filefield_source_reference_get_files | Get all the files used within a particular field (or all fields). |
filefield_source_reference_info | Implements hook_filefield_source_info(). |
filefield_source_reference_menu | Implements hook_menu(). |
filefield_source_reference_process | A #process callback to extend the filefield_widget element type. |
filefield_source_reference_settings | Implements hook_filefield_source_settings(). |
filefield_source_reference_theme | Implements hook_theme(). |
filefield_source_reference_value | A #filefield_value_callback function. |
theme_filefield_source_reference_autocomplete_item | Theme the output of a single item in the autocomplete list. |
theme_filefield_source_reference_element | Theme the output of the autocomplete field. |
Constants
Name![]() |
Description |
---|---|
FILEFIELD_SOURCE_REFERENCE_HINT_TEXT | @file A FileField extension to allow referencing of existing files. |