mirror of https://github.com/friendica/friendica
133 lines
3.1 KiB
PHP
133 lines
3.1 KiB
PHP
<?php
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namespace Friendica\Core\Config;
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use dba;
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use Friendica\BaseObject;
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use Friendica\Database\DBM;
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require_once 'include/dba.php';
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/**
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* JustInTime ConfigAdapter
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*
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* Default Config Adapter. Provides the best performance for pages loading few configuration variables.
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*
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* @author Hypolite Petovan <mrpetovan@gmail.com>
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*/
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class JITConfigAdapter extends BaseObject implements IConfigAdapter
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{
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private $cache;
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private $in_db;
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public function load($cat = "config")
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{
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// We don't preload "system" anymore.
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// This reduces the number of database reads a lot.
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if ($cat === 'system') {
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return;
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}
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$a = self::getApp();
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$configs = dba::select('config', ['v', 'k'], ['cat' => $cat]);
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while ($config = dba::fetch($configs)) {
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$k = $config['k'];
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if ($cat === 'config') {
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$a->config[$k] = $config['v'];
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} else {
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$a->config[$cat][$k] = $config['v'];
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self::$cache[$cat][$k] = $config['v'];
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self::$in_db[$cat][$k] = true;
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}
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}
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dba::close($configs);
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}
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public function get($cat, $k, $default_value = null, $refresh = false)
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{
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$a = self::getApp();
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if (!$refresh) {
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// Do we have the cached value? Then return it
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if (isset($this->cache[$cat][$k])) {
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if ($this->cache[$cat][$k] === '!<unset>!') {
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return $default_value;
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} else {
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return $this->cache[$cat][$k];
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}
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}
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}
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$config = dba::selectFirst('config', ['v'], ['cat' => $cat, 'k' => $k]);
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if (DBM::is_result($config)) {
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// manage array value
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$value = (preg_match("|^a:[0-9]+:{.*}$|s", $config['v']) ? unserialize($config['v']) : $config['v']);
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// Assign the value from the database to the cache
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$this->cache[$cat][$k] = $value;
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$this->in_db[$cat][$k] = true;
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return $value;
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} elseif (isset($a->config[$cat][$k])) {
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// Assign the value (mostly) from the .htconfig.php to the cache
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$this->cache[$cat][$k] = $a->config[$cat][$k];
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$this->in_db[$cat][$k] = false;
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return $a->config[$cat][$k];
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}
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$this->cache[$cat][$k] = '!<unset>!';
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$this->in_db[$cat][$k] = false;
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return $default_value;
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}
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public function set($cat, $k, $value)
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{
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$a = self::getApp();
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// We store our setting values in a string variable.
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// So we have to do the conversion here so that the compare below works.
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// The exception are array values.
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$dbvalue = (!is_array($value) ? (string)$value : $value);
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$stored = $this->get($cat, $k, null, true);
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if (($stored === $dbvalue) && $this->in_db[$cat][$k]) {
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return true;
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}
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if ($cat === 'config') {
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$a->config[$k] = $dbvalue;
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} elseif ($cat != 'system') {
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$a->config[$cat][$k] = $dbvalue;
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}
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// Assign the just added value to the cache
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$this->cache[$cat][$k] = $dbvalue;
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// manage array value
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$dbvalue = (is_array($value) ? serialize($value) : $dbvalue);
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$result = dba::update('config', ['v' => $dbvalue], ['cat' => $cat, 'k' => $k], true);
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if ($result) {
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$this->in_db[$cat][$k] = true;
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return $value;
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}
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return $result;
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}
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public function delete($cat, $k)
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{
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if (isset($this->cache[$cat][$k])) {
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unset($this->cache[$cat][$k]);
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unset($this->in_db[$cat][$k]);
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}
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$result = dba::delete('config', ['cat' => $cat, 'k' => $k]);
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return $result;
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}
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}
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