add model constraint

Author: Prometheo

indexer_app/utils.py

@@ -2187,6 +2187,10 @@ def update_list_registrations(data, contract_id, chain_id="stellar"):
         "updated_at": datetime.fromtimestamp(data["updated_ms"] / 1000),
     }
 
+    logger.info(
+        f"updating ListRegistration with data: {data} and updatdata: {regUpdate}"
+    )
+
     try:
         # Perform the update
         list = List.objects.get(on_chain_id=data["list_id"], chain__name=chain_id)

lists/migrations/0011_listregistration_unique_on_chain_id_list.py

@@ -0,0 +1,20 @@
+# Generated by Django 5.0.6 on 2025-10-26 12:29
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("accounts", "0006_alter_account_near_social_profile_data"),
+        ("lists", "0010_listregistration_on_chain_id"),
+    ]
+
+    operations = [
+        migrations.AddConstraint(
+            model_name="listregistration",
+            constraint=models.UniqueConstraint(
+                fields=("on_chain_id", "list"), name="unique_on_chain_id_list"
+            ),
+        ),
+    ]

lists/models.py

@@ -203,3 +203,8 @@ class Meta:
         indexes = [models.Index(fields=["id", "status"], name="idx_list_id_status")]
 
         unique_together = (("list", "registrant"),)
+        constraints = [
+            models.UniqueConstraint(
+                fields=["on_chain_id", "list"], name="unique_on_chain_id_list"
+            )
+        ]