Elgg-Lorea-Hydra/actions/plugins/settings/save.php

<?php
/**
 * Saves global plugin settings.
 *
 * This action can be overriden for a specific plugin by creating the
 * <plugin_id>/settings/save action in that plugin.
 *
 * @uses array $_REQUEST['params']    A set of key/value pairs to save to the ElggPlugin entity
 * @uses int   $_REQUEST['plugin_id'] The ID of the plugin
 *
 * @package Elgg.Core
 * @subpackage Plugins.Settings
 */

$params = get_input('params');
$plugin_id = get_input('plugin_id');
$plugin = elgg_get_plugin_from_id($plugin_id);

if (!($plugin instanceof ElggPlugin)) {
	register_error(elgg_echo('plugins:settings:save:fail', array($plugin_id)));
	forward(REFERER);
}

$plugin_name = $plugin->getManifest()->getName();

$result = false;

// allow a plugin to override the save action for their settings
if (elgg_action_exists("$plugin_id/settings/save")) {
	action("$plugin_id/settings/save");
} else {
	foreach ($params as $k => $v) {
		$result = $plugin->setSetting($k, $v);
		if (!$result) {
			register_error(elgg_echo('plugins:settings:save:fail', array($plugin_name)));
			forward(REFERER);
			exit;
		}
	}
}

system_message(elgg_echo('plugins:settings:save:ok', array($plugin_name)));
forward(REFERER);