Enforce case-insensitive unique VM names.

netbox_validator_unique_vm_names.py

from extras.validators import CustomValidator
from virtualization.models import VirtualMachine


class UniqueVirtualMachineNamesCasefold(CustomValidator):
    """Enforce case-insensitive unique VM names.

    Your configuration.py file would contain something like this:

    CUSTOM_VALIDATORS = {
        "virtualization.virtualmachine": (
            'my_validators.UniqueVirtualMachineNamesCasefold',
        ),
    }

    """

    def validate(self, virtual_machine):
        existing_vms = VirtualMachine.objects.filter(
            name__iexact=virtual_machine.name
        ).exists()
        if existing_vms:
            self.fail("VirtualMachine name already in use.", field="name")