| Current File : /data/web/virtuals/215191/virtual/www/domains/starwars.cz/sites/all/modules/user_chooser/uchoo.inc |
<?php
//helper function for building up the form element
function _process_uchoo_few($element, &$form_state) {
$uids = _uchoo_query($element);
if (count($uids) < variable_get('user_chooser_threshhold', 50)) {//show dropdown list
$element['#options'] = uchoo_display_all($uids, FALSE);
$element['#theme'] = 'select';
if (!$element['#multiple']) {
$firstitem = $element['#required'] ? t('Please choose...') : t('<none>');
$element['#options'] = array('' => $firstitem) + $element['#options'];
}
$element = form_process_select($element);
if (empty($element['#default_value']) && !empty($form_state['values'][$element['#name']])) {
$element['#default_value'] = $form_state['values'][$element['#name']];
}
}
else {//show autocomplete field
$uids = array_splice($uids, 0, variable_get('user_chooser_threshhold', 50));
$element['#theme'] = 'textfield';
$element['#autocomplete_path'] = implode('/', array(
'system/ajax/uchoo',
$form_state['complete form']['form_build_id']['#value'],
implode(',', $element['#array_parents'])
));
if (!empty($form_state['values'][$element['#name']])) {
foreach (user_load_multiple(NULL, array('uid' => $form_state['values'][$element['#name']])) as $account) {
$names[] = $account->name;
}
$element['#value'] = implode(', ', $names);
}
if (!isset($element['#description'])) {
$fields = variable_get('user_chooser_matching', array('u.uid', 'u.name', 'u.mail'));
if (in_array('u.uid', $fields)) $accepts[] = t('user ID');
if (in_array('u.name', $fields)) $accepts[] = t('username');
if (in_array('u.mail', $fields)) $accepts[] = t('email');
if ($element['#multiple']) {
$element['#description'] = t('Accepts @types; comma separated', array('@types' => implode(', ', $accepts)));
}
else {
$element['#description'] = t('Accepts @types', array('@types' => implode(', ', $accepts)));
}
}
if ($element['#multiple']) {
$element['#attributes']['style'] = 'width:100%;';
}
foreach (element_info_property('textfield', '#process') as $callback) {
$element = $callback($element, $form_state);
}
$form_state['cache'] = TRUE;
}
return $element;
}
/*
* Settings form to set global restrictions
*/
function uchoo_config_form() {
$form = array (
'user_chooser_threshhold' => array(
'#title' => t('Autocomplete threshhold'),
'#description' => t('Below this number of items, a select box is shown, above it, an autocomplete field'),
'#type' => 'textfield',
'#size' => 3,
'#maxlength' => 3,
'#default_value' => variable_get('user_chooser_threshhold', 50),
'#element_validate' => array('_element_validate_integer'),
'#weight' => 1
),
'user_chooser_sort' => array(
'#title' => t('Select widget - order by'),
'#description' => t('The select field will show results in what order'),
'#type' => 'radios',
'#options' => array(
0 => t('User ID'),
1 => t('Alphabetical')
),
'#default_value' => variable_get('user_chooser_sort', 0),
'#weight' => 2
),
array(
'#title' => t('Autocomplete matching'),
'#type' => 'fieldset',
'user_chooser_matching' => array(
'#title' => t('Autocomplete widget - match against'),
'#description' => t('The autocomplete widget will get matches based on which fields?') .' '. t('Only applies to permission role and conditions based widgets.'),
'#type' => 'checkboxes',
'#options' => array(
'u.uid' => t('user ID'),
'u.name' => t('username'),
'u.mail' => t('email'),
),
'#default_value' => variable_get('user_chooser_matching', array('u.uid', 'u.name', 'u.mail')),
),
'user_chooser_match_offset' => array(
'#title' => t('Offset'),
'#type' => 'radios',
'#options' => array(
'' => 'string%',
'%' => '%string%',
),
'#default_value' => variable_get('user_chooser_match_offset', '')
),
'#weight' => 3
),
'user_chooser_format' => array(
'#title' => t('Display format'),
'#description' => t('Use at least one of the tokens below'),
'#type' => 'textfield',
'#maxlength' => 128,
'#required' => TRUE,
'#default_value' => variable_get('user_chooser_format', '[user:name]'),
),
'token_tree' => array(
'#theme' => 'token_tree',
'#token_types' => array('user'),
'#global_types' => FALSE,
'#weight' => 4
),
);
return system_settings_form($form);
}
//form element callback
//checks that all submited values are in fact in the list.
function user_chooser_few_validate(&$element, &$form_state) {
if (isset($element['#unidentified']) && count($element['#unidentified'])) {//unidentified users from uchoo_set_value
$message = t('Unknown users: @users', array('@users' => implode($element['#unidentified'])));
if (!$element['#multiple'] || $element['#multiple_fail_alert'] > 1) form_error($element, $message);
elseif($element['#multiple'] && $element['#multiple_fail_alert'] == 1) drupal_set_message($message, 'warning');
}
if (empty($element['#allow_me']) && $key = array_search($GLOBALS['user']->uid, (array)$element['#value']) && is_integer($key)) {
unset($element['#value'][$key]);
if (!$element['#multiple'] || in_array($element['#type'], array('user_chooser_callback', 'user_chooser_preselect'))) {
form_error($element, t("You can't put yourself in '@name'", array('@name' => $element['#title'])));
}
}
}
//takes an array of $uids and formats them for display
function uchoo_display_all($uids, $username_key = TRUE) {
$names = array();
$format = variable_get('user_chooser_format', '[user:name]');
foreach (user_load_multiple($uids) as $account) {
$key = $username_key ? $account->name :$account->uid;
$formatted = token_replace($format, array('user' => $account));
$names[$key] = $formatted;
}
if (variable_get('user_chooser_sort')) {
asort($names);
}
return $names;
}
/*
* ajax menu callback
* the autocomplete a textfield uses get and so you have no access to the form and can't retrieve the triggering element
* so this is a special callback which expects the path and the $element['name']
* then it retrieves the triggering element and returns only valid users
*/
function uchoo_autocomplete() {
$output = array();
$args = func_get_args();
$string = array_pop($args);
$parents = explode(',', array_pop($args));
$form_build_id = array_pop($args);
//see ajax_get_form
$form_state = form_state_defaults();
$form = form_get_cache($form_build_id, $form_state);
if ($form) {
$element = uchoo_get_element($form, $parents);
// Since some of the submit handlers are run, redirects need to be disabled.
$form_state['no_redirect'] = TRUE;
$form_state['rebuild_info']['copy']['#build_id'] = TRUE;
$form_state['rebuild_info']['copy']['#action'] = TRUE;
//we don't need to process the form - we just wanted the $element
//this has to work for multiple select fields, where we autocomplete the whole string from the last incomplete name
$array = drupal_explode_tags($string);
$last_string = trim(array_pop($array));
$prefix = implode(', ', $array);
if ($prefix) $prefix .= ', ';
$suggested_uids = _uchoo_query($element, 10, $last_string);
$names = uchoo_display_all($suggested_uids, TRUE);
foreach ($names as $name => $formatted) {
//exclude from the suggestions any names already in the $array
if (in_array($name, $array)) continue;
$output[$prefix.$name] = $formatted;
}
}
drupal_json_output($output);
exit();
}
function _uchoo_query($element, $limit = 0, $string = '') {
$callback = &$element['#callback'];
if (!function_exists($callback)) {
drupal_set_message('user_chooser callback not found: '.$callback);
return array();
}
$query = _uchoo_query_helper($element, $limit, $string);
$callback($query, $element['#args'], $string);
return $query->execute()->fetchCol();
}
function _uchoo_query_helper($element, $limit = 0, $string = '') {
$query = db_select('users', 'u')
->fields('u', array('uid'))
->condition('u.uid', 0, '!=');
if ($limit) {
$query->range(0, $limit);
}
if (strlen($string)) {
$or = db_or();
$match_against = variable_get('user_chooser_matching', array('u.uid', 'u.name', 'u.mail'));
preg_match('/\(([0-9]+)\)/', $string, $matches);
if (in_array($match_against, 'u.uid') && $uid = $matches[1]) {
$or->condition('u.uid', $uid);
}
else {
$like_string = variable_get('user_chooser_match_offset', '') . db_like($string) .'%';
foreach ($match_against as $field) {
$or->condition($field, $like_string, 'LIKE');
}
$query->condition($or);
}
}
if (empty($element['#allow_blocked'])) {
$query->condition('u.status', TRUE);
}
if (!empty($element['#exclude'])) {
$query->condition('u.uid', $element['#exclude'], '<>');
}
if (!variable_get('user_chooser_sort')) {
$query->orderby('u.uid', 'ASC');
}
return $query;
}
/*
* Returns the element from the given path.
*/
function uchoo_get_element($form, $path) {
$element = $form;
foreach ($path as $key) {
$element = $element[$key];
}
return $element;
}