/**
* load config from db
* @access public
* @static
* @return boolean
* @example
* <p>
* config::loadDbConfig();
* </p>
*/
public static function loadDbConfig()
{
$cacheConfig = self::get('cache');
if ($cacheConfig) {
//从cache中读取dbConfig,如中没有命中，则继续从DB中读取
cacheLayer::setConfig($cacheConfig);
$dbConfigCacheKey = cacheLayer::getKey('co', 'platform', 'config', 'loadDbConfig');
$dbConfig = cacheLayer::read($dbConfigCacheKey);
if ($dbConfig) {
self::$_config = array_merge_recursive(self::$_config, $dbConfig);
log::accessLog('Execute loadDbConfig() successful(from cache)');
log::returnLog(true);
return true;
}
}
$mongoConfig = self::get('database.default.params');
if (is_array($mongoConfig) && count($mongoConfig)) {
//从mongo Db中读取config
$accessMongo = new accessMongo($mongoConfig);
$accessMongo->connect();
$dbo = $accessMongo->getDb();
$connection = $dbo->selectCollection('sg_configuration');
$configures = iterator_to_array($connection->find(array('published' => 1), array('name', 'value', 'default_value')));
$config = array();
foreach ($configures as $configure) {
if (is_numeric($configure['default_value'])) {
if (!is_numeric($configure['value'])) {
$config[$configure['name']] = $configure['default_value'];
} else {
$config[$configure['name']] = $configure['value'];
}
} else {
if (empty($configure['value'])) {
$config[$configure['name']] = $configure['default_value'];
} else {
$config[$configure['name']] = $configure['value'];
}
}
}
if (isset($dbConfigCacheKey)) {
cacheLayer::write($dbConfigCacheKey, $config);
}
self::$_config = array_merge_recursive(self::$_config, $config);
log::accessLog('Execute loadDbConfig() successful(from mongo db)');
log::returnLog(true);
return true;
} else {
log::errorLog('mongo config error');
return false;
}
}