dev: instance admin unique constraints

apiserver/plane/license/migrations/0002_alter_instanceadmin_unique_together.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.5 on 2023-11-16 09:45
+
+from django.conf import settings
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('license', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='instanceadmin',
+            unique_together={('instance', 'user')},
+        ),
+    ]

apiserver/plane/license/models/instance.py

@@ -53,6 +53,7 @@ class InstanceAdmin(BaseModel):
     role = models.PositiveIntegerField(choices=ROLE_CHOICES, default=15)
 
     class Meta:
+        unique_together = ["instance", "user"]
         verbose_name = "Instance Admin"
         verbose_name_plural = "Instance Admins"
         db_table = "instance_admins"