feat: added new Course class to model

ticketsystem/models.py

@@ -2,6 +2,35 @@ from django.db import models
 from django.contrib.auth.models import User
 
 
+class Course(models.Model):
+    """Kurs-Model für Backend-Verwaltung"""
+    name = models.CharField(max_length=200, verbose_name="Kurs-Name")
+    code = models.CharField(max_length=50, unique=True, verbose_name="Kurs-Code")  # z.B. "PROG-101"
+    description = models.TextField(blank=True, verbose_name="Beschreibung")
+
+    tutor = models.ForeignKey(
+        User,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        verbose_name="Tutor",
+        related_name="courses_as_tutor"
+    )
+
+    is_active = models.BooleanField(default=True, verbose_name="Aktiv")
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        ordering = ['name']
+        verbose_name = "Kurs"
+        verbose_name_plural = "Kurse"
+
+    def __str__(self):
+        if self.tutor:
+            return f"{self.code} - {self.name} (Tutor: {self.tutor.username})"
+        return f"{self.code} - {self.name}"
+
+
 class Ticket(models.Model):
     STATUS_CHOICES = [
         ("new", "Neu"),
@@ -20,8 +49,13 @@ class Ticket(models.Model):
     title = models.CharField(max_length=200)
     description = models.TextField()
     status = models.CharField(max_length=20, choices=STATUS_CHOICES, default="new")
-    priority = models.CharField(
-        max_length=10, choices=PRIORITY_CHOICES, default="medium"
+    priority = models.CharField(max_length=10, choices=PRIORITY_CHOICES, default="medium")
+
+    course = models.ForeignKey(
+        Course,
+        on_delete=models.CASCADE,
+        verbose_name="Kurs",
+        related_name="tickets"
     )
     created_by = models.ForeignKey(
         User, related_name="tickets_created", on_delete=models.CASCADE