12468 disallow double underscores in custom field names

netbox/extras/migrations/0093_alter_customfield_name.py

@@ -0,0 +1,29 @@
+# Generated by Django 4.1.8 on 2023-05-08 15:57
+
+import django.core.validators
+from django.db import migrations, models
+import re
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('extras', '0092_delete_jobresult'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='customfield',
+            name='name',
+            field=models.CharField(
+                max_length=50,
+                unique=True,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        flags=re.RegexFlag['IGNORECASE'],
+                        message='Only alphanumeric characters and underscores (no double-underscores) are allowed.',
+                        regex='^(?!.*__.*)^[a-z0-9_]+$',
+                    )
+                ],
+            ),
+        ),
+    ]