Merge pull request #10115 from arthanson/art-10033

#10033 disable Add a Termination button if 2 terminations on L2VPN P2P

netbox/ipam/models/l2vpn.py

@@ -4,6 +4,7 @@ from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import ValidationError
 from django.db import models
 from django.urls import reverse
+from django.utils.functional import cached_property
 
 from ipam.choices import L2VPNTypeChoices
 from ipam.constants import L2VPN_ASSIGNMENT_MODELS
@@ -68,6 +69,13 @@ class L2VPN(NetBoxModel):
     def get_absolute_url(self):
         return reverse('ipam:l2vpn', args=[self.pk])
 
+    @cached_property
+    def can_add_termination(self):
+        if self.type in L2VPNTypeChoices.P2P and self.terminations.count() >= 2:
+            return False
+        else:
+            return True
+
 
 class L2VPNTermination(NetBoxModel):
     l2vpn = models.ForeignKey(