public static function &loadClass($class, $directory = '', $param = null, $isCache = true)
{
if (isset(self::$_classes[$class])) {
$class = self::$_classes[$class];
if (is_subclass_of($class, 'CoreController')) {
CoreController::$instance = $class;
}
return $class;
}
$name = false;
foreach (array(APPPATH, BASEPATH) as $path) {
if (file_exists($path . $directory . '/' . $class . '.php')) {
$name = $class;
if (class_exists($name, FALSE) === FALSE) {
require_once $path . $directory . '/' . $class . '.php';
}
break;
}
}
if ($name === FALSE) {
die('Unable to locate the specified class: ' . $class . '.php');
} else {
$class = str_replace('.php', '', trim($class, '/'));
if (($lastSlash = strrpos($class, '/')) !== FALSE) {
$name = substr($class, ++$lastSlash);
}
}
$instance = isset($param) ? new $name($param) : new $name();
if ($isCache) {
self::$_classes[$class] = $instance;
}
return $instance;
}
public function __construct()
{
Debug::write("Building controller " . get_class($this) . " ...", 0);
self::$instance = $this;
$this->view = new View();
//TODO: move check to Database.class.php
if (isset($GLOBALS['config']['bdd']['hostname']) && !empty($GLOBALS['config']['bdd']['hostname'])) {
$this->db = new Database();
}
/**
* start capturating controller's output
*/
self::startCapturing();
}
/**
* 实例化一个模型
* @param type $classname_path
* @param type $hmvc_module_floder
* @return type CoreModel
*/
public static function instance($classname_path = null, $hmvc_module_floder = NULL)
{
if (!empty($hmvc_module_floder)) {
CoreRouter::switchHmvcConfig($hmvc_module_floder);
}
//这里调用控制器instance是为了触发自动加载，从而避免了插件模式下，直接instance模型，自动加载失效的问题
CoreController::instance();
if (empty($classname_path)) {
$renew = is_bool($classname_path) && $classname_path === true;
CoreLoader::classAutoloadRegister();
return empty(self::$instance) || $renew ? self::$instance = new self() : self::$instance;
}
$system = CoreLoader::$system;
$classname_path = str_replace('.', DIRECTORY_SEPARATOR, $classname_path);
$classname = basename($classname_path);
$model_folders = $system['model_folder'];
if (!is_array($model_folders)) {
$model_folders = array($model_folders);
}
$count = count($model_folders);
CoreLoader::classAutoloadRegister();
foreach ($model_folders as $key => $model_folder) {
$filepath = $model_folder . DIRECTORY_SEPARATOR . $classname_path . $system['model_file_suffix'];
$alias_name = $classname;
if (isset(CoreModelLoader::$model_files[$alias_name])) {
return CoreModelLoader::$model_files[$alias_name];
}
if (file_exists($filepath)) {
//在plugin模式下，路由器不再使用，那么自动注册不会被执行，自动加载功能会失效，所以在这里再尝试加载一次，
//如此一来就能满足两种模式
//CoreLoader::classAutoloadRegister();
if (!class_exists($classname, FALSE)) {
CoreLoader::includeOnce($filepath);
}
if (class_exists($classname, FALSE)) {
return CoreModelLoader::$model_files[$alias_name] = new $classname();
} else {
if ($key == $count - 1) {
Fn::trigger404('Model Class:' . $classname . ' not found.');
}
}
} else {
if ($key == $count - 1) {
Fn::trigger404($filepath . ' not found.');
}
}
}
}
public function __construct($autoload = true, $init_template = true)
{
// Add trace for debugging
\Debug::trace('Initializing core controller...', __FILE__, __LINE__);
// Set the instance here
if (self::$instance == false) {
self::$instance = $this;
}
// Set our Controller and Action
$this->controller = $GLOBALS['controller'];
$this->action = $GLOBALS['action'];
$this->querystring = $GLOBALS['querystring'];
// Initiate the Loader Input, and Config class
$this->load = load_class('Loader');
$this->Config = load_class('Config');
$this->Input = load_class('Input');
// If site is updating, only allow Ajax requests
if ($GLOBALS['controller'] != 'admin_ajax' && $this->Config->get('site_updating')) {
die('Site Down for maintenance. Be back soon.');
}
// Setup the selected users language
$this->Language = load_class('Language');
$GLOBALS['language'] = $this->Language->selected_language();
// Autoload helpers and libraries
if ($autoload == true) {
$this->_autoload();
}
// Setup the template system
if ($init_template == true) {
$this->_init_template();
}
// Process DB updates
if (!$this->Input->is_ajax()) {
$this->_process_db();
}
// Add trace for debugging
\Debug::trace('Core controller initialized successfully', __FILE__, __LINE__);
}
/**
* 实例化一个loader
* @param type $renew 是否强制重新new一个loader，默认只会new一次
* @param type $hmvc_module_floder hmvc模块文件夹名称
* @return type CoreLoader
*/
public static function instance($renew = null, $hmvc_module_floder = null)
{
$default = CoreLoader::$system;
if (!empty($hmvc_module_floder)) {
CoreRouter::switchHmvcConfig($hmvc_module_floder);
}
//在plugin模式下，路由器不再使用，那么自动注册不会被执行，自动加载功能会失效，所以在这里再尝试加载一次，
//如此一来就能满足两种模式
self::classAutoloadRegister();
//这里调用控制器instance是为了触发自动加载，从而避免了插件模式下，直接instance模型，自动加载失效的问题
CoreController::instance();
$renew = is_bool($renew) && $renew === true;
$ret = empty(self::$instance) || $renew ? self::$instance = new self() : self::$instance;
CoreLoader::$system = $default;
return $ret;
}
