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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Settings\Storage\Backend;
use Piwik\Common;
use Piwik\Db;
use Exception;
/**
* Plugin settings backend. Stores all settings in a "plugin_setting" database table.
*
* If a value that needs to be stored is an array, will insert a new row for each value of this array.
*/
class PluginSettingsTable implements BackendInterface
{
/**
* @var string
*/
private $pluginName;
/**
* @var string
*/
private $userLogin;
/**
* @var Db\AdapterInterface
*/
private $db;
public function __construct($pluginName, $userLogin)
{
if (empty($pluginName)) {
throw new Exception('No plugin name given for PluginSettingsTable backend');
}
if ($userLogin === false || $userLogin === null) {
throw new Exception('Invalid user login name given for PluginSettingsTable backend');
}
$this->pluginName = $pluginName;
$this->userLogin = $userLogin;
}
private function initDbIfNeeded()
{
if (!isset($this->db)) {
// we do not want to create a db connection on backend creation
$this->db = Db::get();
}
}
/**
* @inheritdoc
*/
public function getStorageId()
{
return 'PluginSettings_' . $this->pluginName . '_User_' . $this->userLogin;
}
/**
* Saves (persists) the current setting values in the database.
*/
public function save($values)
{
$this->initDbIfNeeded();
$table = $this->getTableName();
$this->delete();
foreach ($values as $name => $value) {
if (!is_array($value)) {
$value = array($value);
}
foreach ($value as $val) {
if (!isset($val)) {
continue;
}
if (is_bool($val)) {
$val = (int) $val;
}
$sql = "INSERT INTO $table (`plugin_name`, `user_login`, `setting_name`, `setting_value`) VALUES (?, ?, ?, ?)";
$bind = array($this->pluginName, $this->userLogin, $name, $val);
$this->db->query($sql, $bind);
}
}
}
public function load()
{
$this->initDbIfNeeded();
$sql = "SELECT `setting_name`, `setting_value` FROM " . $this->getTableName() . " WHERE plugin_name = ? and user_login = ?";
$bind = array($this->pluginName, $this->userLogin);
$settings = $this->db->fetchAll($sql, $bind);
$flat = array();
foreach ($settings as $setting) {
$name = $setting['setting_name'];
if (array_key_exists($name, $flat)) {
if (!is_array($flat[$name])) {
$flat[$name] = array($flat[$name]);
}
$flat[$name][] = $setting['setting_value'];
} else {
$flat[$name] = $setting['setting_value'];
}
}
return $flat;
}
private function getTableName()
{
return Common::prefixTable('plugin_setting');
}
public function delete()
{
$this->initDbIfNeeded();
$table = $this->getTableName();
$sql = "DELETE FROM $table WHERE `plugin_name` = ? and `user_login` = ?";
$bind = array($this->pluginName, $this->userLogin);
$this->db->query($sql, $bind);
}
/**
* Unsets all settings for a user. The settings will be removed from the database. Used when
* a user is deleted.
*
* @internal
* @param string $userLogin
* @throws \Exception If the `$userLogin` is empty. Otherwise we would delete most plugin settings
*/
public static function removeAllUserSettingsForUser($userLogin)
{
if (empty($userLogin)) {
throw new Exception('No userLogin specified. Cannot remove all settings for this user');
}
$table = Common::prefixTable('plugin_setting');
Db::get()->query(sprintf('DELETE FROM %s WHERE user_login = ?', $table), array($userLogin));
}
/**
* Unsets all settings for a plugin. The settings will be removed from the database. Used when
* a plugin is uninstalled.
*
* @internal
* @param string $pluginName
* @throws \Exception If the `$userLogin` is empty.
*/
public static function removeAllSettingsForPlugin($pluginName)
{
$table = Common::prefixTable('plugin_setting');
Db::get()->query(sprintf('DELETE FROM %s WHERE plugin_name = ?', $table), array($pluginName));
}
}
|
