added path method

This commit is contained in:
tracer 2022-10-24 18:54:43 +02:00
parent ffe4d43600
commit 7e19efd420

View File

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