friendica/src/Core/Config/PreloadPConfigAdapter.php

103 lines
2.3 KiB
PHP

<?php
namespace Friendica\Core\Config;
use dba;
use Exception;
use Friendica\BaseObject;
require_once 'include/dba.php';
/**
* Preload PConfigAdapter
*
* Minimize the number of database queries to retrieve configuration values at the cost of memory.
*
* @author Hypolite Petovan <mrpetovan@gmail.com>
*/
class PreloadPConfigAdapter extends BaseObject implements IPConfigAdapter
{
private $config_loaded = false;
public function __construct($uid)
{
$this->load($uid, 'config');
}
public function load($uid, $family)
{
if ($this->config_loaded) {
return;
}
$a = self::getApp();
$pconfigs = dba::select('pconfig', ['cat', 'v', 'k'], ['uid' => $uid]);
while ($pconfig = dba::fetch($pconfigs)) {
$cat = $pconfig['cat'];
$k = $pconfig['k'];
$value = (preg_match("|^a:[0-9]+:{.*}$|s", $pconfig['v']) ? unserialize($pconfig['v']) : $pconfig['v']);
$a->config[$uid][$cat][$k] = $value;
}
dba::close($pconfigs);
$this->config_loaded = true;
}
public function get($uid, $cat, $k, $default_value = null, $refresh = false)
{
$a = self::getApp();
$return = $default_value;
if (isset($a->config[$uid][$cat][$k])) {
$return = $a->config[$uid][$cat][$k];
}
return $return;
}
public function set($uid, $cat, $k, $value)
{
$a = self::getApp();
// We store our setting values as strings.
// So we have to do the conversion here so that the compare below works.
// The exception are array values.
$compare_value = !is_array($value) ? (string)$value : $value;
if ($this->get($uid, $cat, $k) === $compare_value) {
return true;
}
$a->config[$uid][$cat][$k] = $value;
// manage array value
$dbvalue = is_array($value) ? serialize($value) : $value;
$result = dba::update('pconfig', ['v' => $dbvalue], ['uid' => $uid, 'cat' => $cat, 'k' => $k], true);
if (!$result) {
throw new Exception('Unable to store config value in [' . $uid . '][' . $cat . '][' . $k . ']');
}
return true;
}
public function delete($uid, $cat, $k)
{
$a = self::getApp();
if (!isset($a->config[$uid][$cat][$k])) {
return true;
}
unset($a->config[$uid][$cat][$k]);
$result = dba::delete('pconfig', ['uid' => $uid, 'cat' => $cat, 'k' => $k]);
return $result;
}
}