3 namespace Friendica\Core\Config;
6 use Friendica\BaseObject;
7 use Friendica\Database\DBA;
9 require_once 'include/dba.php';
12 * Preload Configuration Adapter
14 * Minimizes the number of database queries to retrieve configuration values at the cost of memory.
16 * @author Hypolite Petovan <mrpetovan@gmail.com>
18 class PreloadConfigAdapter extends BaseObject implements IConfigAdapter
20 private $config_loaded = false;
22 public function __construct()
27 public function load($family = 'config')
29 if ($this->config_loaded) {
33 $configs = DBA::select('config', ['cat', 'v', 'k']);
34 while ($config = DBA::fetch($configs)) {
35 self::getApp()->setConfigValue($config['cat'], $config['k'], $config['v']);
39 $this->config_loaded = true;
42 public function get($cat, $k, $default_value = null, $refresh = false)
45 $config = DBA::selectFirst('config', ['v'], ['cat' => $cat, 'k' => $k]);
46 if (DBA::isResult($config)) {
47 self::getApp()->setConfigValue($cat, $k, $config['v']);
51 $return = self::getApp()->getConfigValue($cat, $k, $default_value);
56 public function set($cat, $k, $value)
58 // We store our setting values as strings.
59 // So we have to do the conversion here so that the compare below works.
60 // The exception are array values.
61 $compare_value = !is_array($value) ? (string)$value : $value;
63 if (self::getApp()->getConfigValue($cat, $k) === $compare_value) {
67 self::getApp()->setConfigValue($cat, $k, $value);
70 $dbvalue = is_array($value) ? serialize($value) : $value;
72 $result = DBA::update('config', ['v' => $dbvalue], ['cat' => $cat, 'k' => $k], true);
74 throw new Exception('Unable to store config value in [' . $cat . '][' . $k . ']');
80 public function delete($cat, $k)
82 self::getApp()->deleteConfigValue($cat, $k);
84 $result = DBA::delete('config', ['cat' => $cat, 'k' => $k]);