Merge remote-tracking branch 'origin/main'

# Conflicts:
#	CSS/style.css

Controller/UserController.php

@@ -134,6 +134,26 @@ class UserController{
         }
     }
 
+    public function validateEditKursForm(){
+        foreach ($this->kursLabels as $index => $value) {
+            if($value === "|") continue;
+            if (strpos($value, "*") !== false && (!isset($_POST[$index]) || empty($_POST[$index]))) {
+                $this->kursErrors[$index] = "Bitte " . $value . " eingeben";
+            } else {
+                $this->kursValidData[$index] = $_POST[$index] === '' ? null : $_POST[$index];
+            }       
+        }
+        if (count($this->errors) > 0) {
+            $this->view->setDoMethodName("showUserAccountPage");
+            $this->showUserAccountPage();
+        } else {
+            if ($this->db->writeNewCourse($this->kursValidData, $_SESSION["user_id"])) {
+                $this->view->setDoMethodName("showKursEditedConfirmation");
+                $this->showConfirmation();
+            }
+        }
+    }
+
     public function showConfirmation(){}
 
     public function showUserLoginConfirmation(){