mirror of https://github.com/friendica/friendica
144 lines
2.9 KiB
PHP
144 lines
2.9 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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* Preload User Configuration Adapter
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*
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* Minimizes the number of database queries to retrieve configuration values at the cost of memory.
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*
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* @author Hypolite Petovan <hypolite@mrpetovan.com>
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*/
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class PreloadPConfigAdapter extends AbstractDbaConfigAdapter implements IPConfigAdapter
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{
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/**
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* @var array true if config for user is loaded
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*/
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private $config_loaded;
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/**
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* @param int $uid The UID of the current user
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*/
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public function __construct($uid = null)
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{
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parent::__construct();
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$this->config_loaded = [];
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if (isset($uid)) {
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$this->load($uid, 'config');
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function load($uid, $cat)
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{
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$return = [];
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if (empty($uid)) {
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return $return;
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}
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if (!$this->isLoaded($uid, $cat, null)) {
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return $return;
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}
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$pconfigs = DBA::select('pconfig', ['cat', 'v', 'k'], ['uid' => $uid]);
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while ($pconfig = DBA::fetch($pconfigs)) {
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$value = $pconfig['v'];
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if (isset($value) && $value !== '') {
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$return[$pconfig['cat']][$pconfig['k']] = $value;
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}
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}
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DBA::close($pconfigs);
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$this->config_loaded[$uid] = true;
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return $return;
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}
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/**
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* {@inheritdoc}
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*/
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public function get($uid, $cat, $key)
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{
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if (!$this->isConnected()) {
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return null;
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}
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if (!$this->isLoaded($uid, $cat, $key)) {
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$this->load($uid, $cat);
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}
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$config = DBA::selectFirst('pconfig', ['v'], ['uid' => $uid, 'cat' => $cat, 'k' => $key]);
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if (DBA::isResult($config)) {
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// manage array value
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$value = (preg_match("|^a:[0-9]+:{.*}$|s", $config['v']) ? unserialize($config['v']) : $config['v']);
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if (isset($value) && $value !== '') {
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return $value;
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}
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}
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return null;
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}
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/**
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* {@inheritdoc}
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*/
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public function set($uid, $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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if (!$this->isLoaded($uid, $cat, $key)) {
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$this->load($uid, $cat);
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}
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// We store our setting values as strings.
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// So we have to do the conversion here so that the compare below works.
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// The exception are array values.
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$compare_value = !is_array($value) ? (string)$value : $value;
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if ($this->get($uid, $cat, $key) === $compare_value) {
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return true;
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}
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// manage array value
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$dbvalue = is_array($value) ? serialize($value) : $value;
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return DBA::update('pconfig', ['v' => $dbvalue], ['uid' => $uid, 'cat' => $cat, 'k' => $key], true);
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}
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/**
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* {@inheritdoc}
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*/
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public function delete($uid, $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 (!$this->isLoaded($uid, $cat, $key)) {
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$this->load($uid, $cat);
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}
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return DBA::delete('pconfig', ['uid' => $uid, 'cat' => $cat, 'k' => $key]);
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}
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/**
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* {@inheritdoc}
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*/
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public function isLoaded($uid, $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($this->config_loaded[$uid]) && $this->config_loaded[$uid];
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}
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}
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