/**
* Runs a screen.
*
* @param string $which Which screen to run, "before" or "after"
* @param Controller $controller The controller
* @param AttributeReader $method_meta The method metadata
* @param Array $data Array of data that the screen(s) can add to.
*/
public static function Run($which, $controller, $method_meta, &$data, &$args)
{
$c = $controller->metadata->{$which};
$m = $method_meta->{$which};
if (!$c) {
$c = new AttributeReader();
}
if (!$m) {
$m = new AttributeReader();
}
$screens = $c->merge($m);
foreach ($screens as $name => $screen) {
if (!$screen->ignore) {
if (isset(self::$_screens[$name])) {
$s = self::$_screens[$name];
} else {
uses('screen.' . $name);
$class = $name . 'Screen';
$s = new $class();
self::$_screens[$name] = $s;
}
$s->{$which}($controller, $screen, $data, $args);
}
}
}
public function __construct($request)
{
$this->session = Session::Get();
$this->request = $request;
$this->metadata = AttributeReader::ClassAttributes($this);
$this->setup();
}
/**
* @throws BadRequestException
*
*/
public function __construct()
{
$meta = AttributeReader::ClassAttributes($this);
$apiconf = Config::Get('api');
$this->conf = $apiconf->{$meta->api};
if (!$this->conf) {
throw new BadRequestException('Missing api info');
}
}
/**
* Executes a controller, returning the data
*
* @return array The data from the executed controller.
*/
public function call()
{
$data = array(); // any data to return to the view from the controller
$cfound=$this->find();
$request_method=$cfound['request_method'];
$classname=$cfound['classname'];
$found_action=$cfound['found_action'];
$root=$cfound['root'];
$this->action=$found_action;
if (!file_exists($this->controller_root.$this->controller_path.$this->controller.EXT))
throw new ControllerNotFoundException("Could not find a suitable controller: ".$this->controller_root.$this->controller_path.$this->controller.EXT);
require_once($this->controller_root.$this->controller_path.$this->controller.EXT);
$classname=str_replace('/','',$this->controller_path).$this->controller.'Controller';
if (!class_exists($classname))
throw new ControllerNotFoundException("'$classname' can not be found in '".$this->controller."'.");
$request_method = Request::get_request_method();
$found_action=find_methods($classname, $request_method."_".str_replace('-','_',$this->action), str_replace('-','_',$this->action));
if (!$found_action)
{
$found_action=find_methods($classname, $request_method."_index", 'index');
array_unshift($this->segments,$this->action); // so here we put that mistakenly stripped parameter back on.
}
if (!$found_action)
{
throw new ControllerMethodNotFoundException("Could not find an action to call.");
}
$this->action=$found_action;
// Handle the fact that some URIs contain extra segments that are not part of the controller/action root
$root = $this->controller_path .
(($this->controller!='index') ? $this->controller . "/" : "") .
(($this->action!='index' && $found_action!='index') ? $this->action : "");
$root = rtrim($root,'/');
$request=$this->build_request($root);
$class=new $classname($request);
if ((isset ($class->ignored)) && (in_array($this->action, $class->ignored)))
throw new IgnoredMethodCalledException("Ignored method called.");
$meta=AttributeReader::MethodAttributes($class,$found_action);
// Call the before screens
$screen_data=array();
$method_args=$this->segments;
Screen::Run('before',$class,$meta,$screen_data,$method_args);
// call the method and pass the segments (add returned data to any initially returned by screens)
$data = call_user_func_array(array(&$class, $found_action), $method_args);
if (is_array($data))
$data=array_merge($screen_data,$data);
else
$data=$screen_data;
// Call the after screens
Screen::Run('after',$class,$meta,$data,$method_args);
$class->session->save();
if ($class->view)
$this->view=$class->view;
else if ($meta->view)
$this->view=$meta->view;
$data['controller']=&$class;
$data['session']=&$class->session;
return $data;
}
/**
* Fetches the metadata for a property of a class
*
* @param mixed $class An instance of the class or it's name as a string
* @param string $prop The name of the property
* @return AttributeReader An attribute reader instance
*/
public static function PropertyAttributes($class, $prop_name)
{
if (!$class instanceof ReflectionClass) {
$class = new ReflectionClass($class);
}
$prop = new ReflectionProperty($class->getName(), $prop_name);
$cache = Cache::GetCache('attributes');
$key = 'cp-' . $class->getFileName() . '-' . $prop_name;
$reader = $cache->get($key);
if (!$reader) {
$yaml = AttributeReader::ParseDocComments($prop->getDocComment());
if (trim($yaml) == '') {
$reader = new AttributeReader();
} else {
$reader = new AttributeReader(yaml_parse($yaml));
}
$parent = $class->getParentClass();
if ($parent) {
$pmeta = AttributeReader::PropertyAttributes($parent, $prop_name);
$reader = $pmeta->merge($reader);
}
$cache->set($key, $reader);
}
return $reader;
}
/**
* Test the attribute reading meta attributes inheritance.
*/
public function testInheritance()
{
$class = new AttributeChildClass();
$classmeta = AttributeReader::ClassAttributes($class);
$this->assertTrue($classmeta->grand == '123');
$this->assertTrue($classmeta->parent == '456');
$this->assertTrue($classmeta->child == '789');
$methodmeta = AttributeReader::MethodAttributes($class, 'method');
$this->assertTrue($methodmeta->grand == 'ABC');
$this->assertTrue($methodmeta->parent == 'DEF');
$this->assertTrue($methodmeta->child == 'GHI');
$propmeta = AttributeReader::PropertyAttributes($class, 'property');
$this->assertTrue($propmeta->grand == 'abc');
$this->assertTrue($propmeta->parent == 'def');
$this->assertTrue($propmeta->child == 'ghi');
}
/**
* Sets up serialization
*
* @param mixed $object The object to serialize
*/
protected function setup_serialization($object)
{
if (!$this->node_conf) {
$attrs = AttributeReader::ClassAttributes($object);
if (!$attrs || !$attrs->serializer) {
throw new Exception('Class is missing necessary metadata for serialization.');
}
$this->node_config = self::GetNodeConf($attrs->serializer);
$this->root = $attrs->serializer->node;
}
$this->object = $object;
$this->content = $this->do_serialize();
}
