chore: create unique constraints for webhook (#6257)

* chore: create unique constraints for webhook

* chore: updated the migration file

apiserver/plane/app/serializers/webhook.py

@@ -116,7 +116,7 @@ class WebhookSerializer(DynamicBaseSerializer):
     class Meta:
         model = Webhook
         fields = "__all__"
-        read_only_fields = ["workspace", "secret_key"]
+        read_only_fields = ["workspace", "secret_key", "deleted_at"]
 
 
 class WebhookLogSerializer(DynamicBaseSerializer):

apiserver/plane/db/migrations/0088_sticky_sort_order_workspaceuserlink.py

@@ -109,4 +109,16 @@ class Migration(migrations.Migration):
             name="entity_name",
             field=models.CharField(max_length=30, verbose_name="Transaction Type"),
         ),
+        migrations.AlterUniqueTogether(
+            name="webhook",
+            unique_together={("workspace", "url", "deleted_at")},
+        ),
+        migrations.AddConstraint(
+            model_name="webhook",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(("deleted_at__isnull", True)),
+                fields=("workspace", "url"),
+                name="webhook_url_unique_url_when_deleted_at_null",
+            ),
+        ),
     ]

apiserver/plane/db/models/webhook.py

@@ -47,11 +47,18 @@ class Webhook(BaseModel):
         return f"{self.workspace.slug} {self.url}"
 
     class Meta:
-        unique_together = ["workspace", "url"]
+        unique_together = ["workspace", "url", "deleted_at"]
         verbose_name = "Webhook"
         verbose_name_plural = "Webhooks"
         db_table = "webhooks"
         ordering = ("-created_at",)
+        constraints = [
+            models.UniqueConstraint(
+                fields=["workspace", "url"],
+                condition=models.Q(deleted_at__isnull=True),
+                name="webhook_url_unique_url_when_deleted_at_null",
+            )
+        ]
 
 
 class WebhookLog(BaseModel):