/**
* Updates existing configuration map removing obsolete options, adding new
* options and tweaking options which need to be updated.
*
* @param string $name Extension code
* @param array $options Configuration options
* @param bool $is_module TRUE for modules, FALSE for plugins
* @param string $category Structure category code. Only for per-category config options
* @param string $donor Extension name for extension-to-extension config implantations
* @return int Number of entries affected
*/
function cot_config_update($name, $options, $is_module = false, $category = '', $donor = '')
{
$affected = 0;
$old_options = cot_config_load($name, $is_module, $category, $donor);
// Find and remove options which no longer exist
$remove_opts = array();
foreach ($old_options as $old_opt) {
$keep = false;
foreach ($options as $opt) {
if ($opt['name'] == $old_opt['name']) {
$keep = true;
break;
}
}
if (!$keep && $old_opt['type'] != COT_CONFIG_TYPE_HIDDEN) {
$remove_opts[] = $old_opt['name'];
}
}
if (count($remove_opts) > 0) {
$affected += cot_config_remove($name, $is_module, $remove_opts, $category, $donor);
}
// Find new options and options which have been modified
$new_options = array();
$upd_options = array();
foreach ($options as $opt) {
$existed = false;
foreach ($old_options as $old_opt) {
if ($opt['name'] == $old_opt['name']) {
$changed = array_diff($opt, $old_opt);
if (count($changed) > 0) {
// Values for modified options are set to default
// only if both type and default value have changed
if ($opt['type'] != $old_opt['type'] && $opt['default'] != $old_opt['default']) {
$opt['value'] = $opt['default'];
}
$upd_options[] = $opt;
}
$existed = true;
break;
}
}
if (!$existed) {
$new_options[] = $opt;
}
}
if (count($new_options) > 0) {
$affected += cot_config_add($name, $new_options, $is_module, $category);
}
if (count($upd_options) > 0) {
$affected += cot_config_modify($name, $upd_options, $is_module, $category);
}
return $affected;
}
/**
* Remove a user image type
*
* @param string $code User image code
* @return DB query result
* @global CotDB $db
* @global Cache $cache
*/
function cot_userimages_config_remove($code, $dropcolumn = true)
{
global $cache, $db, $db_users;
if (empty($code)) {
return FALSE;
}
$result = cot_config_remove('userimages', false, strtolower($code));
if ($result && $dropcolumn) {
$db->query("ALTER TABLE {$db_users} DROP `user_" . $db->prep($code) . "`");
}
$cache && $cache->db->remove('cot_userimages_config', 'users');
return $result;
}