Redis.php

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<?php

namespace Elgg\Cache\Config;

use Phpfastcache\Drivers\Redis\Config;

class Redis extends Config {
    
    public static function fromElggConfig(string $namespace, \Elgg\Config $config): ?self {
        
        if (!$config->redis || empty($config->redis_servers) || !is_array($config->redis_servers)) {
            return null;
        }
        
        $options = [
            'preventCacheSlams' => true,
            'useStaticItemCaching' => true,
            'itemDetailedDate' => true,
            'optPrefix' => $namespace,
        ];
        if (!empty($config->redis_options) && is_array($config->redis_options)) {
            $options = $config->redis_options;
        }
        
        if (count($config->redis_servers) > 1) {
            elgg_log('Multiple Redis servers are not supported. Only the first server will be used. Please update the configuration in elgg-config/settings.php', 'warning');
        }
        
        $server = $config->redis_servers[0];

        $options = array_merge($options, $server);
        
        return new self($options);
    }
}