/**
* Singleton function used to manage this object.
*
* @param bool $loadFromDB
* whether to load from the database.
* @param bool $force
* whether to force a reconstruction.
*
* @return CRM_Core_Config
*/
public static function &singleton($loadFromDB = TRUE, $force = FALSE)
{
if (self::$_singleton === NULL || $force) {
// goto a simple error handler
$GLOBALS['civicrm_default_error_scope'] = CRM_Core_TemporaryErrorScope::create(array('CRM_Core_Error', 'handle'));
$errorScope = CRM_Core_TemporaryErrorScope::create(array('CRM_Core_Error', 'simpleHandler'));
// lets ensure we set E_DEPRECATED to minimize errors
// CRM-6327
if (defined('E_DEPRECATED')) {
error_reporting(error_reporting() & ~E_DEPRECATED);
}
// first, attempt to get configuration object from cache
$cache = CRM_Utils_Cache::singleton();
self::$_singleton = $cache->get('CRM_Core_Config' . CRM_Core_Config::domainID());
// if not in cache, fire off config construction
if (!self::$_singleton) {
self::$_singleton = new CRM_Core_Config();
self::$_singleton->_initialize($loadFromDB);
//initialize variables. for gencode we cannot load from the
//db since the db might not be initialized
if ($loadFromDB) {
// initialize stuff from the settings file
self::$_singleton->setCoreVariables();
self::$_singleton->_initVariables();
// I don't think we need to do this twice
// however just keeping this commented for now in 4.4
// in case we hit any issues - CRM-13064
// We can safely delete this once we release 4.4.4
// self::$_singleton->setCoreVariables();
}
$cache->set('CRM_Core_Config' . CRM_Core_Config::domainID(), self::$_singleton);
} else {
// we retrieve the object from memcache, so we now initialize the objects
self::$_singleton->_initialize($loadFromDB);
// CRM-9803, NYSS-4822
// this causes various settings to be reset and hence we should
// only use the config object that we retrieved from memcache
}
self::$_singleton->initialized = 1;
if (isset(self::$_singleton->customPHPPathDir) && self::$_singleton->customPHPPathDir) {
$include_path = self::$_singleton->customPHPPathDir . PATH_SEPARATOR . get_include_path();
set_include_path($include_path);
}
// set the callback at the very very end, to avoid an infinite loop
// set the error callback
unset($errorScope);
// call the hook so other modules can add to the config
// again doing this at the very very end
CRM_Utils_Hook::config(self::$_singleton);
// make sure session is always initialised
$session = CRM_Core_Session::singleton();
// for logging purposes, pass the userID to the db
$userID = $session->get('userID');
if ($userID) {
CRM_Core_DAO::executeQuery('SET @civicrm_user_id = %1', array(1 => array($userID, 'Integer')));
}
// initialize authentication source
self::$_singleton->initAuthSrc();
}
return self::$_singleton;
}
