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<?php |
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namespace System; |
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class Route |
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{ |
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/** |
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* Application Object |
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* |
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* @var \System\Application |
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*/ |
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private $app; |
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/** |
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* Routes |
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* |
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* @var array |
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*/ |
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private $routes = []; |
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/** |
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* Current route |
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* |
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* @var array |
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*/ |
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public $current = []; |
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/** |
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* Current page |
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* |
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* @var string |
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*/ |
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private $page; |
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/** |
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* Prefix |
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* |
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* @var string |
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*/ |
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private $prefix; |
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/** |
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* Controller |
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* |
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* @var string |
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*/ |
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private $basController; |
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/** |
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* Middleware |
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* |
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* @var string |
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*/ |
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private $middleware = []; |
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/** |
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* Constructor |
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* |
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* @param \System\Application $app |
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*/ |
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public function __construct(Application $app) |
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{ |
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$this->app = $app; |
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} |
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/** |
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* Add route to $routes after processing each parameter |
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* |
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* @param string $url |
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* @param string $action |
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* @param string|array $requestMethods |
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* @param string|array $middleware |
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* @return object $this |
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*/ |
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private function add(string $url, string $action, $requestMethods, $middleware = []) |
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{ |
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$url = $this->setPrefix($url); |
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$action = $this->setAction($action); |
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$middleware = $this->setMiddleware($middleware); |
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$routes = [ |
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'url' => $url, |
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'pattern' => $this->generatePattern($url), |
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'action' => $this->getAction($action), |
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'method' => $requestMethods, |
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'middleware' => $middleware |
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]; |
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$this->routes[] = $routes; |
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return $this; |
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} |
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/** |
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* Add route GET to $routes |
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* |
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* @param string $url |
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* @param string $action |
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* @param string|array $middleware |
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* @return object $this |
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*/ |
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public function get(string $url, string $action, $middleware = []) |
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{ |
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$this->add($url, $action, 'GET', $middleware); |
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return $this; |
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} |
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/** |
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* Add route POST to $routes |
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* |
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* @param string $url |
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* @param string $action |
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* @param string|array $middleware |
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* @return object $this |
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*/ |
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public function post(string $url, string $action, $middleware = []) |
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{ |
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$this->add($url, $action, 'POST', $middleware); |
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return $this; |
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} |
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/** |
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* Add prefix at the first of $url if exists or not equal to '/' |
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* |
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* @param string $url |
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* @return string $url |
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*/ |
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private function setPrefix($url) |
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{ |
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if ($this->prefix && $this->prefix !== '/') { |
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$url = $this->prefix . $url; |
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$url = rtrim($url, '/'); |
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} |
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return $url; |
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} |
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/** |
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* Add basController at the first of $action if exists |
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* |
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* @param string $action |
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* @return string $action |
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*/ |
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private function setAction($action) |
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{ |
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if ($this->basController) { |
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$action = $this->basController . '/' . $action; |
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} |
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return $action; |
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} |
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/** |
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* Merge the given middleware if exists |
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* |
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* @param string $middleware |
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* @return array |
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*/ |
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private function setMiddleware($middleware) |
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{ |
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if (!is_array($middleware)) { |
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$middleware = [$middleware]; |
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} |
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return array_merge($this->middleware, $middleware); |
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} |
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/** |
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* Clean the given path to the right controller and method |
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* |
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* @param string $action |
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* @return array $action |
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*/ |
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private function getAction($action) |
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{ |
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$action = str_replace('/', '\\', $action); |
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$action = (strpos($action, '@') != 0) ? $action : $action . '@index'; |
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$action = explode('@', $action); |
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return $action; |
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} |
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/** |
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* generate a pattern using regex |
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* |
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* @param string $url |
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* @return string $pattern |
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*/ |
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private function generatePattern($url) |
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{ |
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$pattern = '#^'; |
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$pattern .= str_replace([':text', ':id'], ['([a-zA-Z0-9-]+)', '(\d+)'], strtolower($url)); |
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$pattern .= '$#'; |
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return $pattern; |
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} |
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/** |
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* Check if the both methods are true |
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* |
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* @param string $pattern |
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* @param string $methods |
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* @return bool |
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*/ |
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private function fullMatch($pattern, $methods) |
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{ |
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return $this->isMatchingPattern($pattern) && $this->app->request->isMatchingRequestMethod($methods); |
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} |
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/** |
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* Check if the url of the requesting page is matching the given pattern |
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* |
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* @property object $url |
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* @param string $pattern |
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* @return bool |
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*/ |
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private function isMatchingPattern($pattern) |
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{ |
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$url = strtolower($this->app->url->parameters()); |
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return preg_match($pattern, $url); |
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} |
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/** |
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* Get the rest parameter of the url as paramter for |
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* the method |
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* |
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* @property object $url |
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* @param string $pattern |
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* @return bool |
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*/ |
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private function getArgumentsFor($pattern) |
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{ |
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$url = $this->app->url->parameters(); |
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preg_match($pattern, $url, $matches); |
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array_shift($matches); |
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return $matches; |
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} |
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/** |
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* Group routes together |
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* |
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* @param array $groupOptions |
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* @param callable $callback |
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* @return object $this |
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*/ |
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public function group(array $groupOptions, callable $callback) |
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{ |
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$prefix = $groupOptions['prefix']; |
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$controller = $groupOptions['controller']; |
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$middleware = $groupOptions['middleware']; |
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$this->prefix = $prefix; |
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$this->basController = $controller; |
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$this->middleware = $middleware; |
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$callback($this); |
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$this->prefix = ''; |
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$this->basController = ''; |
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$this->middleware = []; |
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return $this; |
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} |
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/** |
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* Set a complate package |
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* |
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* @param string $url |
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* @param string $controller |
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* @param array $middlewares |
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* @return object $this |
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*/ |
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public function package(string $url, string $controller, array $middlewares = []) |
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{ |
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$this->add($url, $controller, 'GET'); |
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$this->add("$url/:id", "$controller@row", ['GET'], $middlewares['row'] ?? []); |
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$this->add("$url/new", "$controller@new", ['GET'], $middlewares['new'] ?? []); |
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$this->add("$url/add", "$controller@add", ['POST'], $middlewares['add'] ?? []); |
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$this->add("$url/update/:id", "$controller@update", ['POST'], $middlewares['update'] ?? []); |
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$this->add("$url/delete/:id", "$controller@delete", ['POST'], $middlewares['delete'] ?? []); |
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return $this; |
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} |
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/** |
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* Loop over the routes and find the right one: |
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* found: break the loop and check if the request can continue by calling the middleware |
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* can be continue: call the right page |
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* can't be continue: ..... |
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* not found: call the 404 page |
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* |
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* @return string |
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*/ |
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public function getProperRoute() |
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{ |
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foreach ($this->routes as $route) { |
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if ($this->fullMatch($route['pattern'], $route['method'])) { |
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$this->current = $route; |
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$continue = $this->app->request->canRequestContinue($route['middleware']); |
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if ($continue) { |
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list($controller, $method) = $route['action']; |
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$this->page = $controller; |
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$arguments = $this->getArgumentsFor($route['pattern']); |
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return (string) $this->app->load->action($controller, $method, $arguments); |
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} |
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break; |
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} |
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} |
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$this->page = 'notfound'; |
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return notFoundPage(); |
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} |
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/** |
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* Get current route |
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* |
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* @return array $current |
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*/ |
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public function getCurrent() |
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{ |
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return $this->current; |
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} |
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/** |
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* Get current page |
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* |
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* @return string $current |
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*/ |
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public function getPage() |
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{ |
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$page = explode('\\', $this->page); |
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$length = count($page); |
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return $page[$length - 1]; |
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} |
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} |
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If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.