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<?php |
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/** |
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* Linna Framework. |
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* |
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* @author Sebastian Rapetti <[email protected]> |
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* @copyright (c) 2018, Sebastian Rapetti |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types=1); |
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namespace Linna\Mvc; |
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use Linna\Router\Route; |
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use Linna\Router\RouteInterface; |
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/** |
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* FrontController. |
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*/ |
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class FrontController |
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{ |
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/** |
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* @var View Contain view object for render |
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*/ |
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private View $view; |
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/** |
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* @var Model Contain model object |
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*/ |
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private Model $model; |
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/** |
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* @var Controller Contain controller object |
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*/ |
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private Controller $controller; |
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/** |
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* @var string Contain Controller and View action name |
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*/ |
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private string $routeAction = ''; |
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/** |
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* @var array<mixed> Paremeters passed to Controller |
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*/ |
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private array $routeParam = []; |
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/** |
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* Constructor. |
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* |
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* @param Model $model |
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* @param View $view |
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* @param Controller $controller |
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* @param RouteInterface $route |
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*/ |
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public function __construct(Model $model, View $view, Controller $controller, RouteInterface $route) |
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{ |
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if ($route instanceof Route) { |
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$this->routeAction = ($route->action) ?: 'entryPoint'; |
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$this->routeParam = $route->param; |
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} |
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$this->model = $model; |
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$this->view = $view; |
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$this->controller = $controller; |
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} |
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/** |
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* Run mvc pattern. |
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* |
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* @return void |
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*/ |
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public function run(): void |
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{ |
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//attach Oserver to Subjetc |
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$this->model->attach($this->view); |
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//run action before controller |
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$this->beforeAfterController('before'); |
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$this->beforeAfterControllerAction('before'); |
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//run controller |
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$this->runController(); |
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//run action after controller |
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$this->beforeAfterControllerAction('after'); |
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$this->beforeAfterController('after'); |
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//notify model changes to view |
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$this->model->notify(); |
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//run view |
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$this->runView(); |
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} |
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/** |
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* Run action before or after controller action execution. |
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* |
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* @param string $when |
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* |
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* @return void |
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*/ |
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private function beforeAfterControllerAction(string $when): void |
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{ |
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$method = $when.\ucfirst($this->routeAction); |
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if (\method_exists($this->controller, $method) && $method !== $when) { |
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\call_user_func([$this->controller, $method]); |
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} |
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} |
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/** |
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* Run action before or after controller execution. |
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* |
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* @param string $when |
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* |
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* @return void |
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*/ |
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private function beforeAfterController(string $when): void |
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{ |
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if (\method_exists($this->controller, $when)) { |
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\call_user_func([$this->controller, $when]); |
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} |
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} |
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/** |
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* Run controller. |
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* |
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* @return void |
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*/ |
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private function runController(): void |
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{ |
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//get route information |
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$action = $this->routeAction; |
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$param = $this->routeParam; |
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//if controller does not have the method named entryPoint |
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//this avoid problems |
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if (!\method_exists($this->controller, $action)) { |
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return; |
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} |
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//action - call controller passing params |
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if (!empty($param) && $action) { |
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\call_user_func_array([$this->controller, $action], $param); |
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return; |
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} |
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//action - call controller |
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\call_user_func([$this->controller, $action]); |
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} |
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/** |
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* Run view. |
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* |
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* @return void |
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*/ |
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private function runView(): void |
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{ |
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//get route information |
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$action = $this->routeAction; |
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if (\method_exists($this->view, $action)) { |
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\call_user_func([$this->view, $action]); |
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} |
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} |
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/** |
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* Return view data. |
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* |
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* @return string |
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*/ |
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public function response(): string |
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{ |
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return $this->view->render(); |
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} |
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} |
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linna /
framework
