registration implemented

Main/models/subscription.py

@@ -0,0 +1,12 @@
+from django.db import models
+from django.contrib.auth.models import User
+
+from Main.models.group import Group
+
+
+class Subscription(models.Model):
+    group = models.ForeignKey(
+        Group, on_delete=models.CASCADE, related_name="subscriptions"
+    )
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    role = models.IntegerField()