Improve acl model

vpn/migrations/0003_acllink_last_access_time.py

@@ -0,0 +1,18 @@
+# Generated migration for adding last_access_time field
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('vpn', '0002_taskexecutionlog'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='acllink',
+            name='last_access_time',
+            field=models.DateTimeField(blank=True, help_text='Last time this link was accessed', null=True),
+        ),
+    ]