Enhancement: unique mail rule names by owner

src/paperless_mail/migrations/0024_alter_mailrule_name_and_more.py

@@ -0,0 +1,33 @@
+# Generated by Django 4.2.11 on 2024-06-05 16:51
+
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("paperless_mail", "0023_remove_mailrule_filter_attachment_filename_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="mailrule",
+            name="name",
+            field=models.CharField(max_length=256, verbose_name="name"),
+        ),
+        migrations.AddConstraint(
+            model_name="mailrule",
+            constraint=models.UniqueConstraint(
+                fields=("name", "owner"),
+                name="paperless_mail_mailrule_unique_name_owner",
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="mailrule",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(("owner__isnull", True)),
+                fields=("name",),
+                name="paperless_mail_mailrule_name_unique",
+            ),
+        ),
+    ]