Merge pull request #5 from thecodeholic/url-params

Add possibility to parse parameters from URL
thecodeholic · Feb 22, 2022 · 4b106fd · 4b106fd
2 parents 75c27ce + 236a1f0
commit 4b106fd
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Showing 2 changed files with 84 additions and 4 deletions.
diff --git a/Request.php b/Request.php
@@ -7,7 +7,6 @@
 
 namespace thecodeholic\phpmvc;
 
-
 /**
  * Class Request
  *
@@ -16,6 +15,8 @@
  */
 class Request
 {
+    private array $routeParams = [];
+
     public function getMethod()
     {
         return strtolower($_SERVER['REQUEST_METHOD']);
@@ -56,4 +57,24 @@ public function getBody()
         }
         return $data;
     }
-}
+
+    /**
+     * @param $params
+     * @return self
+     */
+    public function setRouteParams($params)
+    {
+        $this->routeParams = $params;
+        return $this;
+    }
+
+    public function getRouteParams()
+    {
+        return $this->routeParams;
+    }
+
+    public function getRouteParam($param, $default = null)
+    {
+        return $this->routeParams[$param] ?? $default;
+    }
+}
diff --git a/Router.php b/Router.php
@@ -37,13 +37,72 @@ public function post(string $url, $callback)
         $this->routeMap['post'][$url] = $callback;
     }
 
+    /**
+     * @return array
+     */
+    public function getRouteMap($method): array
+    {
+        return $this->routeMap[$method] ?? [];
+    }
+
+    public function getCallback()
+    {
+        $method = $this->request->getMethod();
+        $url = $this->request->getUrl();
+        // Trim slashes
+        $url = trim($url, '/');
+
+        // Get all routes for current request method
+        $routes = $this->getRouteMap($method);
+
+        $routeParams = false;
+
+        // Start iterating registed routes
+        foreach ($routes as $route => $callback) {
+            // Trim slashes
+            $route = trim($route, '/');
+            $routeNames = [];
+
+            if (!$route) {
+                continue;
+            }
+
+            // Find all route names from route and save in $routeNames
+            if (preg_match_all('/\{(\w+)(:[^}]+)?}/', $route, $matches)) {
+                $routeNames = $matches[1];
+            }
+
+            // Convert route name into regex pattern
+            $routeRegex = "@^" . preg_replace_callback('/\{\w+(:([^}]+))?}/', fn($m) => isset($m[2]) ? "({$m[2]})" : '(\w+)', $route) . "$@";
+
+            // Test and match current route against $routeRegex
+            if (preg_match_all($routeRegex, $url, $valueMatches)) {
+                $values = [];
+                for ($i = 1; $i < count($valueMatches); $i++) {
+                    $values[] = $valueMatches[$i][0];
+                }
+                $routeParams = array_combine($routeNames, $values);
+
+                $this->request->setRouteParams($routeParams);
+                return $callback;
+            }
+        }
+
+        return false;
+    }
+
     public function resolve()
     {
         $method = $this->request->getMethod();
         $url = $this->request->getUrl();
         $callback = $this->routeMap[$method][$url] ?? false;
         if (!$callback) {
-            throw new NotFoundException();
+
+            $callback = $this->getCallback();
+
+            if ($callback === false) {
+                throw new NotFoundException();
+            }
         }
         if (is_string($callback)) {
             return $this->renderView($callback);
@@ -73,4 +132,4 @@ public function renderViewOnly($view, $params = [])
     {
         return Application::$app->view->renderViewOnly($view, $params);
     }
-}
+}