160 lines
4.7 KiB
PHP
160 lines
4.7 KiB
PHP
<?php
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/**
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* NRE
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*
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* @author coderkun <olli@coderkun.de>
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* @copyright 2013 coderkun (http://www.coderkun.de)
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* @license http://www.gnu.org/licenses/gpl.html
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* @link http://www.coderkun.de/projects/nre
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*/
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namespace nre\core;
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/**
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* Abstract class to implement a (Controller) Component.
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*
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* @author coderkun <olli@coderkun.de>
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*/
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abstract class Component
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{
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/**
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* Load the class of a Component.
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*
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* @throws \nre\exceptions\ComponentNotFoundException
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* @throws \nre\exceptions\ComponentNotValidException
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* @param string $componentName Name of the Component to load
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*/
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public static function load($componentName)
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{
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// Determine full classname
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$className = self::getClassName($componentName);
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try {
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// Load class
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ClassLoader::load($className);
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// Validate class
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ClassLoader::check($className, get_class());
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}
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catch(\nre\exceptions\ClassNotValidException $e) {
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throw new \nre\exceptions\ComponentNotValidException($e->getClassName());
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}
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catch(\nre\exceptions\ClassNotFoundException $e) {
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throw new \nre\exceptions\ComponentNotFoundException($e->getClassName());
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}
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}
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/**
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* Instantiate a Component (Factory Pattern).
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*
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* @param string $componentName Name of the Component to instantiate
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*/
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public static function factory($componentName)
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{
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// Determine full classname
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$className = self::getClassName($componentName);
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// Construct and return Controller
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return new $className();
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}
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/**
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* Determine the classname for the given Component name.
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*
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* @param string $componentName Component name to get classname of
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* @return string Classname for the Component name
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*/
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private static function getClassName($componentName)
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{
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$className = \nre\core\ClassLoader::concatClassNames($componentName, \nre\core\ClassLoader::stripNamespace(get_class()));
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return \nre\configs\AppConfig::$app['namespace']."controllers\\components\\$className";
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}
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/**
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* Construct a new (Controller) Component.
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*
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* @throws \nre\exceptions\DriverNotFoundException
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* @throws \nre\exceptions\DriverNotValidException
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* @throws \nre\exceptions\ModelNotValidException
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* @throws \nre\exceptions\ModelNotFoundException
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*/
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protected function __construct()
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{
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// Load Models
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$this->loadModels();
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}
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/**
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* Load the Models of this Component.
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*
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* @throws \nre\exceptions\DriverNotFoundException
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* @throws \nre\exceptions\DriverNotValidException
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* @throws \nre\exceptions\ModelNotValidException
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* @throws \nre\exceptions\ModelNotFoundException
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*/
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protected function loadModels()
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{
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// Determine Models
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$explicit = false;
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$models = \nre\core\ClassLoader::stripClassType(\nre\core\ClassLoader::stripNamespace(get_class($this)));
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if(property_exists($this, 'models'))
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{
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$models = $this->models;
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$explicit = true;
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}
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if(!is_array($models)) {
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$models = array($models);
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}
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// Models of parent classes
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$parent = $this;
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while($parent = get_parent_class($parent))
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{
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$properties = get_class_vars($parent);
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if(array_key_exists('models', $properties)) {
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$models = array_merge($models, $properties['models']);
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}
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}
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$models = array_unique($models);
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// Load Models
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foreach($models as &$model)
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{
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try {
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// Load class
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Model::load($model);
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// Construct Model
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$modelName = ucfirst(strtolower($model));
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$this->$modelName = Model::factory($model);
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}
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catch(\nre\exceptions\ModelNotValidException $e) {
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if($explicit) {
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throw $e;
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}
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}
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catch(\nre\exceptions\ModelNotFoundException $e) {
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if($explicit) {
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throw $e;
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}
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}
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}
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}
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}
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?>
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