/**
* Handles autoloading of classes.
*
* @param string $class A class name.
*
* @return bool Returns true if the class has been loaded
*/
public static function autoload($class)
{
// class already exists
if (self::classExists($class)) {
return true;
}
$force = false;
$lowerClass = strtolower($class);
if (isset(self::$classes[$lowerClass])) {
// we have a class path for the class, let's include it
if (is_readable(self::$classes[$lowerClass])) {
require_once self::$classes[$lowerClass];
if (self::classExists($class)) {
return true;
}
}
// there is a class path in cache, but the file does not exist or does not contain the class any more
// but maybe the class exists in another already known file now
// so all files have to be analysed again => $force reload
$force = true;
unset(self::$classes[$lowerClass]);
self::$cacheChanged = true;
}
// Return true if class exists after calling $composerLoader
if (self::$composerLoader->loadClass($class) && self::classExists($class)) {
return true;
}
// Class not found, so reanalyse all directories if not already done or if $force==true
// but only if an admin is logged in
if ((!self::$reloaded || $force) && ($user = rex_backend_login::createUser()) && $user->isAdmin()) {
self::reload($force);
return self::autoload($class);
}
return false;
}
