silverstripe-framework/core/control/ModelAsController.php

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<?php
/**
* ModelAsController will hand over all control to the appopriate model object
* It uses URLSegment to determine the right object. Also, if (ModelClass)_Controller exists,
* that controller will be used instead. It should be a subclass of ContentController.
*
* @package sapphire
* @subpackage control
*/
class ModelAsController extends Controller implements NestedController {
public function run($requestParams) {
$this->pushCurrent();
$this->init();
$nested = $this->getNestedController();
$result = $nested->run($requestParams);
$this->popCurrent();
return $result;
}
public function init() {
singleton('SiteTree')->extend('modelascontrollerInit', $this);
}
public function getNestedController() {
if($this->urlParams['URLSegment']) {
$SQL_URLSegment = Convert::raw2sql($this->urlParams['URLSegment']);
if (Translatable::is_enabled()) {
$child = Translatable::get_one("SiteTree", "URLSegment = '$SQL_URLSegment'");
} else {
$child = DataObject::get_one("SiteTree", "URLSegment = '$SQL_URLSegment'");
}
if(!$child) {
$child = $this->get404Page();
}
if($child) {
if(isset($_REQUEST['debug'])) Debug::message("Using record #$child->ID of type $child->class with URL {$this->urlParams['URLSegment']}");
$controllerClass = "{$child->class}_Controller";
if($this->urlParams['Action'] && ClassInfo::exists($controllerClass.'_'.$this->urlParams['Action'])) {
$controllerClass = $controllerClass.'_'.$this->urlParams['Action'];
}
if(ClassInfo::exists($controllerClass)) {
$controller = new $controllerClass($child);
} else {
$controller = $child;
}
$controller->setURLParams($this->urlParams);
return $controller;
} else {
die("The requested page couldn't be found.");
}
} else {
user_error("ModelAsController not geting a URLSegment. It looks like the site isn't redirecting to home", E_USER_ERROR);
}
}
protected function get404Page() {
if($page = DataObject::get_one("ErrorPage", "ErrorCode = '404'")) return $page;
else return DataObject::get_one("SiteTree", "URLSegment = '404'");
}
}
?>