Closes #10374: Require unique tenant names & slugs per group (not globally)

netbox/tenancy/migrations/0010_tenant_relax_uniqueness.py

@@ -0,0 +1,39 @@
+# Generated by Django 4.1.7 on 2023-03-01 01:01
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tenancy', '0009_standardize_description_comments'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='tenant',
+            name='name',
+            field=models.CharField(max_length=100),
+        ),
+        migrations.AlterField(
+            model_name='tenant',
+            name='slug',
+            field=models.SlugField(max_length=100),
+        ),
+        migrations.AddConstraint(
+            model_name='tenant',
+            constraint=models.UniqueConstraint(fields=('group', 'name'), name='tenancy_tenant_unique_group_name', violation_error_message='Tenant name must be unique per group.'),
+        ),
+        migrations.AddConstraint(
+            model_name='tenant',
+            constraint=models.UniqueConstraint(condition=models.Q(('group__isnull', True)), fields=('name',), name='tenancy_tenant_unique_name'),
+        ),
+        migrations.AddConstraint(
+            model_name='tenant',
+            constraint=models.UniqueConstraint(fields=('group', 'slug'), name='tenancy_tenant_unique_group_slug', violation_error_message='Tenant slug must be unique per group.'),
+        ),
+        migrations.AddConstraint(
+            model_name='tenant',
+            constraint=models.UniqueConstraint(condition=models.Q(('group__isnull', True)), fields=('slug',), name='tenancy_tenant_unique_slug'),
+        ),
+    ]