Features: 1) Alter category.slug to populate only from name and enable null values in migration.

Fixes: 1) None.

Extra: 1) Removed `parent__slug` from `populate_from` in `category.slug` field in models for consistency.

core/migrations/0029_alter_category_slug.py

@@ -0,0 +1,26 @@
+# Generated by Django 5.2 on 2025-06-21 16:29
+
+import django_extensions.db.fields
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0028_alter_category_slug_alter_product_slug"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="category",
+            name="slug",
+            field=django_extensions.db.fields.AutoSlugField(
+                allow_unicode=True,
+                blank=True,
+                editable=False,
+                null=True,
+                populate_from=("name",),
+                unique=True,
+            ),
+        ),
+    ]

core/models.py

@@ -214,7 +214,7 @@ class Category(ExportModelOperationsMixin("category"), NiceModel, MPTTModel):
     )
 
     slug: str = AutoSlugField(  # type: ignore
-        populate_from=("name", "parent__slug"),
+        populate_from=("name",),
         allow_unicode=True,
         unique=True,
         editable=False,