mirror of https://github.com/friendica/friendica
148 lines
3.0 KiB
PHP
148 lines
3.0 KiB
PHP
<?php
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namespace Friendica\Core\Config\Adapter;
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use Friendica\Database\DBA;
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/**
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* JustInTime Configuration Adapter
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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 <hypolite@mrpetovan.com>
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*/
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class JITConfigAdapter extends AbstractDbaConfigAdapter implements IConfigAdapter
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{
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private $in_db;
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/**
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* {@inheritdoc}
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*/
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public function load($cat = "config")
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{
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$return = [];
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if (!$this->isConnected()) {
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return $return;
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}
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// We don't preload "system" anymore.
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// This reduces the number of database reads a lot.
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if ($cat === 'system') {
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return $return;
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}
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$configs = DBA::select('config', ['v', 'k'], ['cat' => $cat]);
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while ($config = DBA::fetch($configs)) {
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$key = $config['k'];
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$value = $this->toConfigValue($config['v']);
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// The value was in the db, so don't check it again (unless you have to)
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$this->in_db[$cat][$key] = true;
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// just save it in case it is set
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if (isset($value)) {
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$return[$key] = $value;
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}
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}
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DBA::close($configs);
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return [$cat => $return];
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}
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/**
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* {@inheritdoc}
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*
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* @param bool $mark if true, mark the selection of the current cat/key pair
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*/
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public function get($cat, $key, $mark = true)
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{
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if (!$this->isConnected()) {
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return null;
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}
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// The value got checked, so mark it to avoid checking it over and over again
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if ($mark) {
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$this->in_db[$cat][$key] = true;
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}
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$config = DBA::selectFirst('config', ['v'], ['cat' => $cat, 'k' => $key]);
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if (DBA::isResult($config)) {
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// manage array value
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$value = $this->toConfigValue($config['v']);
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// just return it in case it is set
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if (isset($value)) {
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return $value;
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}
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}
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return null;
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}
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/**
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* {@inheritdoc}
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*/
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public function set($cat, $key, $value)
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{
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if (!$this->isConnected()) {
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return false;
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}
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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, $key, false);
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if (!isset($this->in_db[$cat])) {
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$this->in_db[$cat] = [];
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}
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if (!isset($this->in_db[$cat][$key])) {
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$this->in_db[$cat][$key] = false;
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}
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if (isset($stored) && ($stored === $dbvalue) && $this->in_db[$cat][$key]) {
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return true;
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}
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$dbvalue = $this->toDbValue($dbvalue);
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$result = DBA::update('config', ['v' => $dbvalue], ['cat' => $cat, 'k' => $key], true);
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$this->in_db[$cat][$key] = $result;
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return $result;
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}
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/**
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* {@inheritdoc}
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*/
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public function delete($cat, $key)
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{
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if (!$this->isConnected()) {
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return false;
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}
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if (isset($this->cache[$cat][$key])) {
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unset($this->in_db[$cat][$key]);
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}
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$result = DBA::delete('config', ['cat' => $cat, 'k' => $key]);
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return $result;
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}
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/**
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* {@inheritdoc}
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*/
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public function isLoaded($cat, $key)
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{
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if (!$this->isConnected()) {
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return false;
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}
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return (isset($this->in_db[$cat][$key])) && $this->in_db[$cat][$key];
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}
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}
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