added path method
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@ -16,17 +16,17 @@ use Closure;
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/*
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* A small router implementation for the address book demo.
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* Currently it doesn't handle GET requests, as not needed.
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* But if I reuse the code in my bindApi I'll support GET as well.
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* But if I reuse the code in my bindApi I'll maybe support GET as well.
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*/
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class Router
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{
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/*
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* The easiest wy to differentiate between static and dynamic routes is using
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* The easiest way to differentiate between static and dynamic routes is using
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* two arrays, no need to pollute the class Route with that information
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*/
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private array $staticRoutes;
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private array $dynamicRoutes;
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private array $staticRoutes = [];
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private array $dynamicRoutes = [];
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public function __construct(private readonly Template $template)
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{
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@ -44,13 +44,9 @@ class Router
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$parameters = $matches[0];
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// create regex for route:
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$regex = preg_replace(pattern: '/(?<={).+?(?=})/', replacement: '(.*?)', subject: $route);
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// code below is ugly, better match including the braces
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$regex = str_replace(search: '{', replace: '', subject: $regex);
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$regex = str_replace(search: '}', replace: '', subject: $regex);
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$regex = preg_replace(pattern: '/{(?<=).+?(?=)}/', replacement: '([a-zA-Z0-9]*)', subject: $route);
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$regex = '/^' . str_replace(search: "/", replace: '\\/', subject: $regex) . '$/i';
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$route = new Route(name: $name, route: $route, regEx: $regex, parameters: $parameters, callback: $callback);
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if ($parameters) {
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@ -61,7 +57,7 @@ class Router
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}
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/*
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* Check if there is a known route and executes the callback.
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* Checks if there is a known route and executes the callback.
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*/
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public function handleRouting(): void
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{
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@ -71,28 +67,56 @@ class Router
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* Static routes have preference over dynamic ones, so
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* /admin/user/add to add and
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* /admin/user/{name} to edit is possible.
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* A user named "add" of course not :)
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*
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* But who wants to call their users "add" or "delete"?
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* That's as weird as Little Bobby Tables … (https://xkcd.com/327/)
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*/
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foreach ($this->staticRoutes as $route) {
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if (preg_match(pattern: $route->getRegex(), subject: $requestUri, matches: $matches)) {
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call_user_func(callback: $route->getCallback());
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// We've found our route, bail out.
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return;
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}
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}
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foreach ($this->dynamicRoutes as $route) {
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$parameters = [];
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if (preg_match(pattern: $route->getRegex(), subject: $requestUri, matches: $matches)) {
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$parameters = [];
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foreach ($route->getParameters() as $id => $parameter) {
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$parameters[$parameter] = $matches[$id + 1];
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}
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// PHP is mad about named parameters in call_user_func
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// Uncaught Error: Unknown named parameter $args in …
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// PHP is mad about named parameters in call_user_func when adding parameters.
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// Uncaught Error: Unknown named parameter $args in <sourceFile>
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// But PHPStorm seems happy without them. So what?
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call_user_func($route->getCallback(), $parameters);
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return;
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}
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}
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// if no route is matched, throw a 404
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$this->template->render(templateName: 'status/404.html.php');
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}
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public function path(string $routeName, array $vars = [])
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{
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foreach (array_merge($this->dynamicRoutes, $this->staticRoutes) as $route) {
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if ($route->getName() == $routeName) {
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if ($vars) {
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// build route
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$route = $route->getRoute();
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// replace placeholder with current values
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foreach ($vars as $key => $value) {
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$route = str_replace(search: '{' . $key . '}', replace: $value, subject: $route);
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}
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return $route;
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} else {
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return $route->getRoute();
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}
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}
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}
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// no 404, this is reached only if the code is wrong
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die("Missing Route: $routeName");
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}
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}
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