From 5af2a26f97a0c749c3c47327e18b7c34a0c53c0c Mon Sep 17 00:00:00 2001
From: blag <blag@users.noreply.github.com>
Date: Sun, 25 May 2025 23:06:05 -0600
Subject: [PATCH] Add uniqueness setting and optionally connect signal

---
 dbtemplates/apps.py                            |  9 +++++++++
 dbtemplates/conf.py                            |  1 +
 .../0003_template_template_name_idx.py         | 18 ++++++++++++++++++
 dbtemplates/models.py                          |  3 +++
 4 files changed, 31 insertions(+)
 create mode 100644 dbtemplates/migrations/0003_template_template_name_idx.py

diff --git a/dbtemplates/apps.py b/dbtemplates/apps.py
index 9f75273..b02e6c6 100644
--- a/dbtemplates/apps.py
+++ b/dbtemplates/apps.py
@@ -1,4 +1,6 @@
 from django.apps import AppConfig
+from django.conf import settings
+from django.db.models.signals import m2m_changed
 from django.utils.translation import gettext_lazy as _
 
 
@@ -7,3 +9,10 @@ class DBTemplatesConfig(AppConfig):
     verbose_name = _('Database templates')
 
     default_auto_field = 'django.db.models.AutoField'
+
+    def ready(self):
+        from .models import Template
+        from .signal_handlers import verify_template_name_uniqueness_across_all_selected_sites
+
+        if getattr(settings, 'DBTEMPLATES_UNIQUE', False):
+            m2m_changed.connect(verify_template_name_uniqueness_across_all_selected_sites, sender=Template.sites.through)
diff --git a/dbtemplates/conf.py b/dbtemplates/conf.py
index 010db5b..eb8cda3 100644
--- a/dbtemplates/conf.py
+++ b/dbtemplates/conf.py
@@ -16,6 +16,7 @@ class DbTemplatesConf(AppConf):
     AUTO_POPULATE_CONTENT = True
     MEDIA_PREFIX = None
     CACHE_BACKEND = None
+    UNIQUE = False
 
     def configure_media_prefix(self, value):
         if value is None:
diff --git a/dbtemplates/migrations/0003_template_template_name_idx.py b/dbtemplates/migrations/0003_template_template_name_idx.py
new file mode 100644
index 0000000..7e66bed
--- /dev/null
+++ b/dbtemplates/migrations/0003_template_template_name_idx.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.1 on 2025-05-26 19:59
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dbtemplates', '0002_alter_template_creation_date_and_more'),
+        ('sites', '0002_alter_domain_unique'),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name='template',
+            index=models.Index(fields=['name'], name='template_name_idx'),
+        ),
+    ]
diff --git a/dbtemplates/models.py b/dbtemplates/models.py
index ca04070..670c30e 100644
--- a/dbtemplates/models.py
+++ b/dbtemplates/models.py
@@ -36,6 +36,9 @@ class AbstractTemplateMixin(models.Model):
         verbose_name = _('template')
         verbose_name_plural = _('templates')
         ordering = ('name',)
+        indexes = [
+            models.Index(fields=["name"], name="template_name_idx"),
+        ]
 
     def __str__(self):
         return self.name