Merge branch 'feature' into 8356-vm-virtual-disk

docs/configuration/data-validation.md

@@ -87,3 +87,24 @@ The following colors are supported:
 * `gray`
 * `black`
 * `white`
+
+---
+
+## PROTECTION_RULES
+
+!!! tip "Dynamic Configuration Parameter"
+
+This is a mapping of models to [custom validators](../customization/custom-validation.md) against which an object is evaluated immediately prior to its deletion. If validation fails, the object is not deleted. An example is provided below:
+
+```python
+PROTECTION_RULES = {
+    "dcim.site": [
+        {
+            "status": {
+                "eq": "decommissioning"
+            }
+        },
+        "my_plugin.validators.Validator1",
+    ]
+}
+```

docs/customization/custom-validation.md

@@ -26,6 +26,8 @@ The `CustomValidator` class supports several validation types:
 * `regex`: Application of a [regular expression](https://en.wikipedia.org/wiki/Regular_expression)
 * `required`: A value must be specified
 * `prohibited`: A value must _not_ be specified
+* `eq`: A value must be equal to the specified value
+* `neq`: A value must _not_ be equal to the specified value
 
 The `min` and `max` types should be defined for numeric values, whereas `min_length`, `max_length`, and `regex` are suitable for character strings (text values). The `required` and `prohibited` validators may be used for any field, and should be passed a value of `True`.
 

docs/models/dcim/interface.md

@@ -77,6 +77,9 @@ If selected, this component will be treated as if a cable has been connected.
 
 Virtual interfaces can be bound to a physical parent interface. This is helpful for modeling virtual interfaces which employ encapsulation on a physical interface, such as an 802.1Q VLAN-tagged subinterface.
 
+!!! note
+    An interface with one or more child interfaces assigned cannot be deleted until all its child interfaces have been deleted or reassigned.
+
 ### Bridged Interface
 
 Interfaces can be bridged to other interfaces on a device in two manners: symmetric or grouped.

docs/models/virtualization/vminterface.md

@@ -16,6 +16,9 @@ The interface's name. Must be unique to the assigned VM.
 
 Identifies the parent interface of a subinterface (e.g. used to employ encapsulation).
 
+!!! note
+    An interface with one or more child interfaces assigned cannot be deleted until all its child interfaces have been deleted or reassigned.
+
 ### Bridged Interface
 
 An interface on the same VM with which this interface is bridged.

docs/plugins/development/data-backends.md

@@ -0,0 +1,23 @@
+# Data Backends
+
+[Data sources](../../models/core/datasource.md) can be defined to reference data which exists on systems of record outside NetBox, such as a git repository or Amazon S3 bucket. Plugins can register their own backend classes to introduce support for additional resource types. This is done by subclassing NetBox's `DataBackend` class.
+
+```python title="data_backends.py"
+from netbox.data_backends import DataBackend
+
+class MyDataBackend(DataBackend):
+    name = 'mybackend'
+    label = 'My Backend'
+    ...
+```
+
+To register one or more data backends with NetBox, define a list named `backends` at the end of this file:
+
+```python title="data_backends.py"
+backends = [MyDataBackend]
+```
+
+!!! tip
+    The path to the list of search indexes can be modified by setting `data_backends` in the PluginConfig instance.
+
+::: core.data_backends.DataBackend

docs/plugins/development/index.md

@@ -109,6 +109,7 @@ NetBox looks for the `config` variable within a plugin's `__init__.py` to load i
 | `middleware`          | A list of middleware classes to append after NetBox's build-in middleware                                                |
 | `queues`              | A list of custom background task queues to create                                                                        |
 | `search_extensions`   | The dotted path to the list of search index classes (default: `search.indexes`)                                          |
+| `data_backends`       | The dotted path to the list of data source backend classes (default: `data_backends.backends`)                           |
 | `template_extensions` | The dotted path to the list of template extension classes (default: `template_content.template_extensions`)              |
 | `menu_items`          | The dotted path to the list of menu items provided by the plugin (default: `navigation.menu_items`)                      |
 | `graphql_schema`      | The dotted path to the plugin's GraphQL schema class, if any (default: `graphql.schema`)                                 |

mkdocs.yml

@@ -136,6 +136,7 @@ nav:
             - Forms: 'plugins/development/forms.md'
             - Filters & Filter Sets: 'plugins/development/filtersets.md'
             - Search: 'plugins/development/search.md'
+            - Data Backends: 'plugins/development/data-backends.md'
             - REST API: 'plugins/development/rest-api.md'
             - GraphQL API: 'plugins/development/graphql-api.md'
             - Background Tasks: 'plugins/development/background-tasks.md'

netbox/circuits/api/serializers.py

@@ -85,7 +85,7 @@ class CircuitTypeSerializer(NetBoxModelSerializer):
     class Meta:
         model = CircuitType
         fields = [
-            'id', 'url', 'display', 'name', 'slug', 'description', 'tags', 'custom_fields', 'created', 'last_updated',
+            'id', 'url', 'display', 'name', 'slug', 'color', 'description', 'tags', 'custom_fields', 'created', 'last_updated',
             'circuit_count',
         ]
 

netbox/circuits/filtersets.py

@@ -137,7 +137,7 @@ class CircuitTypeFilterSet(OrganizationalModelFilterSet):
 
     class Meta:
         model = CircuitType
-        fields = ['id', 'name', 'slug', 'description']
+        fields = ['id', 'name', 'slug', 'color', 'description']
 
 
 class CircuitFilterSet(NetBoxModelFilterSet, TenancyFilterSet, ContactModelFilterSet):
@@ -154,12 +154,12 @@ class CircuitFilterSet(NetBoxModelFilterSet, TenancyFilterSet, ContactModelFilte
     provider_account_id = django_filters.ModelMultipleChoiceFilter(
         field_name='provider_account',
         queryset=ProviderAccount.objects.all(),
-        label=_('ProviderAccount (ID)'),
+        label=_('Provider account (ID)'),
     )
     provider_network_id = django_filters.ModelMultipleChoiceFilter(
         field_name='terminations__provider_network',
         queryset=ProviderNetwork.objects.all(),
-        label=_('ProviderNetwork (ID)'),
+        label=_('Provider network (ID)'),
     )
     type_id = django_filters.ModelMultipleChoiceFilter(
         queryset=CircuitType.objects.all(),

netbox/circuits/forms/bulk_edit.py

@@ -7,7 +7,7 @@ from ipam.models import ASN
 from netbox.forms import NetBoxModelBulkEditForm
 from tenancy.models import Tenant
 from utilities.forms import add_blank_choice
-from utilities.forms.fields import CommentField, DynamicModelChoiceField, DynamicModelMultipleChoiceField
+from utilities.forms.fields import ColorField, CommentField, DynamicModelChoiceField, DynamicModelMultipleChoiceField
 from utilities.forms.widgets import DatePicker, NumberWithOptions
 
 __all__ = (
@@ -91,6 +91,10 @@ class ProviderNetworkBulkEditForm(NetBoxModelBulkEditForm):
 
 
 class CircuitTypeBulkEditForm(NetBoxModelBulkEditForm):
+    color = ColorField(
+        label=_('Color'),
+        required=False
+    )
     description = forms.CharField(
         label=_('Description'),
         max_length=200,
@@ -99,9 +103,9 @@ class CircuitTypeBulkEditForm(NetBoxModelBulkEditForm):
 
     model = CircuitType
     fieldsets = (
-        (None, ('description',)),
+        (None, ('color', 'description')),
     )
-    nullable_fields = ('description',)
+    nullable_fields = ('color', 'description')
 
 
 class CircuitBulkEditForm(NetBoxModelBulkEditForm):

netbox/circuits/forms/bulk_import.py

@@ -3,6 +3,7 @@ from django import forms
 from circuits.choices import CircuitStatusChoices
 from circuits.models import *
 from dcim.models import Site
+from django.utils.safestring import mark_safe
 from django.utils.translation import gettext_lazy as _
 from netbox.forms import NetBoxModelImportForm
 from tenancy.models import Tenant
@@ -64,7 +65,10 @@ class CircuitTypeImportForm(NetBoxModelImportForm):
 
     class Meta:
         model = CircuitType
-        fields = ('name', 'slug', 'description', 'tags')
+        fields = ('name', 'slug', 'color', 'description', 'tags')
+        help_texts = {
+            'color': mark_safe(_('RGB color in hexadecimal. Example:') + ' <code>00ff00</code>'),
+        }
 
 
 class CircuitImportForm(NetBoxModelImportForm):

netbox/circuits/forms/filtersets.py

@@ -7,7 +7,7 @@ from dcim.models import Region, Site, SiteGroup
 from ipam.models import ASN
 from netbox.forms import NetBoxModelFilterSetForm
 from tenancy.forms import TenancyFilterForm, ContactModelFilterForm
-from utilities.forms.fields import DynamicModelMultipleChoiceField, TagFilterField
+from utilities.forms.fields import ColorField, DynamicModelMultipleChoiceField, TagFilterField
 from utilities.forms.widgets import DatePicker, NumberWithOptions
 
 __all__ = (
@@ -88,7 +88,7 @@ class ProviderNetworkFilterForm(NetBoxModelFilterSetForm):
         label=_('Provider')
     )
     service_id = forms.CharField(
-        label=_('Service id'),
+        label=_('Service ID'),
         max_length=100,
         required=False
     )
@@ -97,8 +97,17 @@ class ProviderNetworkFilterForm(NetBoxModelFilterSetForm):
 
 class CircuitTypeFilterForm(NetBoxModelFilterSetForm):
     model = CircuitType
+    fieldsets = (
+        (None, ('q', 'filter_id', 'tag')),
+        (_('Attributes'), ('color',)),
+    )
     tag = TagFilterField(model)
 
+    color = ColorField(
+        label=_('Color'),
+        required=False
+    )
+
 
 class CircuitFilterForm(TenancyFilterForm, ContactModelFilterForm, NetBoxModelFilterSetForm):
     model = Circuit

netbox/circuits/forms/model_forms.py

@@ -76,14 +76,14 @@ class CircuitTypeForm(NetBoxModelForm):
 
     fieldsets = (
         (_('Circuit Type'), (
-            'name', 'slug', 'description', 'tags',
+            'name', 'slug', 'color', 'description', 'tags',
         )),
     )
 
     class Meta:
         model = CircuitType
         fields = [
-            'name', 'slug', 'description', 'tags',
+            'name', 'slug', 'color', 'description', 'tags',
         ]
 
 

netbox/circuits/migrations/0043_circuittype_color.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.5 on 2023-10-20 21:25
+
+from django.db import migrations
+import utilities.fields
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('circuits', '0042_provideraccount'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='circuittype',
+            name='color',
+            field=utilities.fields.ColorField(blank=True, max_length=6),
+        ),
+    ]

netbox/circuits/models/circuits.py

@@ -7,6 +7,7 @@ from circuits.choices import *
 from dcim.models import CabledObjectModel
 from netbox.models import ChangeLoggedModel, OrganizationalModel, PrimaryModel
 from netbox.models.features import ContactsMixin, CustomFieldsMixin, CustomLinksMixin, ImageAttachmentsMixin, TagsMixin
+from utilities.fields import ColorField
 
 __all__ = (
     'Circuit',
@@ -20,6 +21,11 @@ class CircuitType(OrganizationalModel):
     Circuits can be organized by their functional role. For example, a user might wish to define CircuitTypes named
     "Long Haul," "Metro," or "Out-of-Band".
     """
+    color = ColorField(
+        verbose_name=_('color'),
+        blank=True
+    )
+
     def get_absolute_url(self):
         return reverse('circuits:circuittype', args=[self.pk])
 

netbox/circuits/tables/circuits.py

@@ -28,6 +28,7 @@ class CircuitTypeTable(NetBoxTable):
         linkify=True,
         verbose_name=_('Name'),
     )
+    color = columns.ColorColumn()
     tags = columns.TagColumn(
         url_name='circuits:circuittype_list'
     )
@@ -40,7 +41,7 @@ class CircuitTypeTable(NetBoxTable):
     class Meta(NetBoxTable.Meta):
         model = CircuitType
         fields = (
-            'pk', 'id', 'name', 'circuit_count', 'description', 'slug', 'tags', 'created', 'last_updated', 'actions',
+            'pk', 'id', 'name', 'circuit_count', 'color', 'description', 'slug', 'tags', 'created', 'last_updated', 'actions',
         )
         default_columns = ('pk', 'name', 'circuit_count', 'description', 'slug')
 

netbox/core/api/serializers.py

@@ -4,6 +4,7 @@ from core.choices import *
 from core.models import *
 from netbox.api.fields import ChoiceField, ContentTypeField
 from netbox.api.serializers import BaseModelSerializer, NetBoxModelSerializer
+from netbox.utils import get_data_backend_choices
 from users.api.nested_serializers import NestedUserSerializer
 from .nested_serializers import *
 
@@ -19,7 +20,7 @@ class DataSourceSerializer(NetBoxModelSerializer):
         view_name='core-api:datasource-detail'
     )
     type = ChoiceField(
-        choices=DataSourceTypeChoices
+        choices=get_data_backend_choices()
     )
     status = ChoiceField(
         choices=DataSourceStatusChoices,
@@ -68,5 +69,5 @@ class JobSerializer(BaseModelSerializer):
         model = Job
         fields = [
             'id', 'url', 'display', 'object_type', 'object_id', 'name', 'status', 'created', 'scheduled', 'interval',
-            'started', 'completed', 'user', 'data', 'job_id',
+            'started', 'completed', 'user', 'data', 'error', 'job_id',
         ]

netbox/core/choices.py

@@ -7,18 +7,6 @@ from utilities.choices import ChoiceSet
 # Data sources
 #
 
-class DataSourceTypeChoices(ChoiceSet):
-    LOCAL = 'local'
-    GIT = 'git'
-    AMAZON_S3 = 'amazon-s3'
-
-    CHOICES = (
-        (LOCAL, _('Local'), 'gray'),
-        (GIT, 'Git', 'blue'),
-        (AMAZON_S3, 'Amazon S3', 'blue'),
-    )
-
-
 class DataSourceStatusChoices(ChoiceSet):
     NEW = 'new'
     QUEUED = 'queued'

netbox/core/data_backends.py

@@ -10,61 +10,24 @@ from django import forms
 from django.conf import settings
 from django.utils.translation import gettext as _
 
-from netbox.registry import registry
+from netbox.data_backends import DataBackend
-from .choices import DataSourceTypeChoices
+from netbox.utils import register_data_backend
 from .exceptions import SyncError
 
 __all__ = (
-    'LocalBackend',
     'GitBackend',
+    'LocalBackend',
     'S3Backend',
 )
 
 logger = logging.getLogger('netbox.data_backends')
 
 
-def register_backend(name):
+@register_data_backend()
-    """
-    Decorator for registering a DataBackend class.
-    """
-
-    def _wrapper(cls):
-        registry['data_backends'][name] = cls
-        return cls
-
-    return _wrapper
-
-
-class DataBackend:
-    parameters = {}
-    sensitive_parameters = []
-
-    # Prevent Django's template engine from calling the backend
-    # class when referenced via DataSource.backend_class
-    do_not_call_in_templates = True
-
-    def __init__(self, url, **kwargs):
-        self.url = url
-        self.params = kwargs
-        self.config = self.init_config()
-
-    def init_config(self):
-        """
-        Hook to initialize the instance's configuration.
-        """
-        return
-
-    @property
-    def url_scheme(self):
-        return urlparse(self.url).scheme.lower()
-
-    @contextmanager
-    def fetch(self):
-        raise NotImplemented()
-
-
-@register_backend(DataSourceTypeChoices.LOCAL)
 class LocalBackend(DataBackend):
+    name = 'local'
+    label = _('Local')
+    is_local = True
 
     @contextmanager
     def fetch(self):
@@ -74,8 +37,10 @@ class LocalBackend(DataBackend):
         yield local_path
 
 
-@register_backend(DataSourceTypeChoices.GIT)
+@register_data_backend()
 class GitBackend(DataBackend):
+    name = 'git'
+    label = 'Git'
     parameters = {
         'username': forms.CharField(
             required=False,
@@ -144,8 +109,10 @@ class GitBackend(DataBackend):
         local_path.cleanup()
 
 
-@register_backend(DataSourceTypeChoices.AMAZON_S3)
+@register_data_backend()
 class S3Backend(DataBackend):
+    name = 'amazon-s3'
+    label = 'Amazon S3'
     parameters = {
         'aws_access_key_id': forms.CharField(
             label=_('AWS access key ID'),

netbox/core/filtersets.py

@@ -4,6 +4,7 @@ from django.utils.translation import gettext as _
 import django_filters
 
 from netbox.filtersets import BaseFilterSet, ChangeLoggedModelFilterSet, NetBoxModelFilterSet
+from netbox.utils import get_data_backend_choices
 from .choices import *
 from .models import *
 
@@ -16,7 +17,7 @@ __all__ = (
 
 class DataSourceFilterSet(NetBoxModelFilterSet):
     type = django_filters.MultipleChoiceFilter(
-        choices=DataSourceTypeChoices,
+        choices=get_data_backend_choices,
         null_value=None
     )
     status = django_filters.MultipleChoiceFilter(

netbox/core/forms/bulk_edit.py

@@ -1,10 +1,9 @@
 from django import forms
 from django.utils.translation import gettext_lazy as _
 
-from core.choices import DataSourceTypeChoices
 from core.models import *
 from netbox.forms import NetBoxModelBulkEditForm
-from utilities.forms import add_blank_choice
+from netbox.utils import get_data_backend_choices
 from utilities.forms.fields import CommentField
 from utilities.forms.widgets import BulkEditNullBooleanSelect
 
@@ -16,9 +15,8 @@ __all__ = (
 class DataSourceBulkEditForm(NetBoxModelBulkEditForm):
     type = forms.ChoiceField(
         label=_('Type'),
-        choices=add_blank_choice(DataSourceTypeChoices),
+        choices=get_data_backend_choices,
-        required=False,
+        required=False
-        initial=''
     )
     enabled = forms.NullBooleanField(
         required=False,

netbox/core/forms/filtersets.py

@@ -8,6 +8,7 @@ from core.models import *
 from extras.forms.mixins import SavedFiltersMixin
 from extras.utils import FeatureQuery
 from netbox.forms import NetBoxModelFilterSetForm
+from netbox.utils import get_data_backend_choices
 from utilities.forms import BOOLEAN_WITH_BLANK_CHOICES, FilterForm
 from utilities.forms.fields import ContentTypeChoiceField, DynamicModelMultipleChoiceField
 from utilities.forms.widgets import APISelectMultiple, DateTimePicker
@@ -27,7 +28,7 @@ class DataSourceFilterForm(NetBoxModelFilterSetForm):
     )
     type = forms.MultipleChoiceField(
         label=_('Type'),
-        choices=DataSourceTypeChoices,
+        choices=get_data_backend_choices,
         required=False
     )
     status = forms.MultipleChoiceField(

netbox/core/forms/model_forms.py

@@ -7,6 +7,7 @@ from core.forms.mixins import SyncedDataMixin
 from core.models import *
 from netbox.forms import NetBoxModelForm
 from netbox.registry import registry
+from netbox.utils import get_data_backend_choices
 from utilities.forms import get_field_value
 from utilities.forms.fields import CommentField
 from utilities.forms.widgets import HTMXSelect
@@ -18,6 +19,10 @@ __all__ = (
 
 
 class DataSourceForm(NetBoxModelForm):
+    type = forms.ChoiceField(
+        choices=get_data_backend_choices,
+        widget=HTMXSelect()
+    )
     comments = CommentField()
 
     class Meta:
@@ -26,7 +31,6 @@ class DataSourceForm(NetBoxModelForm):
             'name', 'type', 'source_url', 'enabled', 'description', 'comments', 'ignore_rules', 'tags',
         ]
         widgets = {
-            'type': HTMXSelect(),
             'ignore_rules': forms.Textarea(
                 attrs={
                     'rows': 5,
@@ -56,6 +60,7 @@ class DataSourceForm(NetBoxModelForm):
 
         # Add backend-specific form fields
         self.backend_fields = []
+        if backend:
             for name, form_field in backend.parameters.items():
                 field_name = f'backend_{name}'
                 self.backend_fields.append(field_name)

netbox/core/jobs.py

@@ -25,7 +25,7 @@ def sync_datasource(job, *args, **kwargs):
         job.terminate()
 
     except Exception as e:
-        job.terminate(status=JobStatusChoices.STATUS_ERRORED)
+        job.terminate(status=JobStatusChoices.STATUS_ERRORED, error=str(e))
         DataSource.objects.filter(pk=datasource.pk).update(status=DataSourceStatusChoices.FAILED)
         if type(e) in (SyncError, JobTimeoutException):
             logging.error(e)

netbox/core/migrations/0006_datasource_type_remove_choices.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.6 on 2023-10-20 17:47
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0005_job_created_auto_now'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='datasource',
+            name='type',
+            field=models.CharField(max_length=50),
+        ),
+    ]

netbox/core/migrations/0007_job_add_error_field.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.6 on 2023-10-23 20:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0006_datasource_type_remove_choices'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='job',
+            name='error',
+            field=models.TextField(blank=True, editable=False),
+        ),
+    ]

netbox/core/models/data.py

@@ -45,9 +45,7 @@ class DataSource(JobsMixin, PrimaryModel):
     )
     type = models.CharField(
         verbose_name=_('type'),
-        max_length=50,
+        max_length=50
-        choices=DataSourceTypeChoices,
-        default=DataSourceTypeChoices.LOCAL
     )
     source_url = models.CharField(
         max_length=200,
@@ -96,8 +94,9 @@ class DataSource(JobsMixin, PrimaryModel):
     def docs_url(self):
         return f'{settings.STATIC_URL}docs/models/{self._meta.app_label}/{self._meta.model_name}/'
 
-    def get_type_color(self):
+    def get_type_display(self):
-        return DataSourceTypeChoices.colors.get(self.type)
+        if backend := registry['data_backends'].get(self.type):
+            return backend.label
 
     def get_status_color(self):
         return DataSourceStatusChoices.colors.get(self.status)
@@ -110,10 +109,6 @@ class DataSource(JobsMixin, PrimaryModel):
     def backend_class(self):
         return registry['data_backends'].get(self.type)
 
-    @property
-    def is_local(self):
-        return self.type == DataSourceTypeChoices.LOCAL
-
     @property
     def ready_for_sync(self):
         return self.enabled and self.status not in (
@@ -123,8 +118,14 @@ class DataSource(JobsMixin, PrimaryModel):
 
     def clean(self):
 
+        # Validate data backend type
+        if self.type and self.type not in registry['data_backends']:
+            raise ValidationError({
+                'type': _("Unknown backend type: {type}".format(type=self.type))
+            })
+
         # Ensure URL scheme matches selected type
-        if self.type == DataSourceTypeChoices.LOCAL and self.url_scheme not in ('file', ''):
+        if self.backend_class.is_local and self.url_scheme not in ('file', ''):
             raise ValidationError({
                 'source_url': f"URLs for local sources must start with file:// (or specify no scheme)"
             })

netbox/core/models/jobs.py

@@ -92,6 +92,11 @@ class Job(models.Model):
         null=True,
         blank=True
     )
+    error = models.TextField(
+        verbose_name=_('error'),
+        editable=False,
+        blank=True
+    )
     job_id = models.UUIDField(
         verbose_name=_('job ID'),
         unique=True
@@ -158,7 +163,7 @@ class Job(models.Model):
         # Handle webhooks
         self.trigger_webhooks(event=EVENT_JOB_START)
 
-    def terminate(self, status=JobStatusChoices.STATUS_COMPLETED):
+    def terminate(self, status=JobStatusChoices.STATUS_COMPLETED, error=None):
         """
         Mark the job as completed, optionally specifying a particular termination status.
         """
@@ -168,6 +173,8 @@ class Job(models.Model):
 
         # Mark the job as completed
         self.status = status
+        if error:
+            self.error = error
         self.completed = timezone.now()
         self.save()
 

netbox/core/tables/columns.py

@@ -0,0 +1,20 @@
+import django_tables2 as tables
+
+from netbox.registry import registry
+
+__all__ = (
+    'BackendTypeColumn',
+)
+
+
+class BackendTypeColumn(tables.Column):
+    """
+    Display a data backend type.
+    """
+    def render(self, value):
+        if backend := registry['data_backends'].get(value):
+            return backend.label
+        return value
+
+    def value(self, value):
+        return value

netbox/core/tables/data.py

@@ -3,6 +3,7 @@ import django_tables2 as tables
 
 from core.models import *
 from netbox.tables import NetBoxTable, columns
+from .columns import BackendTypeColumn
 
 __all__ = (
     'DataFileTable',
@@ -15,8 +16,8 @@ class DataSourceTable(NetBoxTable):
         verbose_name=_('Name'),
         linkify=True
     )
-    type = columns.ChoiceFieldColumn(
+    type = BackendTypeColumn(
-        verbose_name=_('Type'),
+        verbose_name=_('Type')
     )
     status = columns.ChoiceFieldColumn(
         verbose_name=_('Status'),
@@ -34,8 +35,8 @@ class DataSourceTable(NetBoxTable):
     class Meta(NetBoxTable.Meta):
         model = DataSource
         fields = (
-            'pk', 'id', 'name', 'type', 'status', 'enabled', 'source_url', 'description', 'comments', 'parameters', 'created',
+            'pk', 'id', 'name', 'type', 'status', 'enabled', 'source_url', 'description', 'comments', 'parameters',
-            'last_updated', 'file_count',
+            'created', 'last_updated', 'file_count',
         )
         default_columns = ('pk', 'name', 'type', 'status', 'enabled', 'description', 'file_count')
 

netbox/core/tables/jobs.py

@@ -47,7 +47,7 @@ class JobTable(NetBoxTable):
         model = Job
         fields = (
             'pk', 'id', 'object_type', 'object', 'name', 'status', 'created', 'scheduled', 'interval', 'started',
-            'completed', 'user', 'job_id',
+            'completed', 'user', 'error', 'job_id',
         )
         default_columns = (
             'pk', 'id', 'object_type', 'object', 'name', 'status', 'created', 'started', 'completed', 'user',

netbox/core/tests/test_api.py

@@ -2,7 +2,6 @@ from django.urls import reverse
 from django.utils import timezone
 
 from utilities.testing import APITestCase, APIViewTestCases
-from ..choices import *
 from ..models import *
 
 
@@ -26,26 +25,26 @@ class DataSourceTest(APIViewTestCases.APIViewTestCase):
     @classmethod
     def setUpTestData(cls):
         data_sources = (
-            DataSource(name='Data Source 1', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source1/'),
+            DataSource(name='Data Source 1', type='local', source_url='file:///var/tmp/source1/'),
-            DataSource(name='Data Source 2', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source2/'),
+            DataSource(name='Data Source 2', type='local', source_url='file:///var/tmp/source2/'),
-            DataSource(name='Data Source 3', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source3/'),
+            DataSource(name='Data Source 3', type='local', source_url='file:///var/tmp/source3/'),
         )
         DataSource.objects.bulk_create(data_sources)
 
         cls.create_data = [
             {
                 'name': 'Data Source 4',
-                'type': DataSourceTypeChoices.GIT,
+                'type': 'git',
                 'source_url': 'https://example.com/git/source4'
             },
             {
                 'name': 'Data Source 5',
-                'type': DataSourceTypeChoices.GIT,
+                'type': 'git',
                 'source_url': 'https://example.com/git/source5'
             },
             {
                 'name': 'Data Source 6',
-                'type': DataSourceTypeChoices.GIT,
+                'type': 'git',
                 'source_url': 'https://example.com/git/source6'
             },
         ]
@@ -63,7 +62,7 @@ class DataFileTest(
     def setUpTestData(cls):
         datasource = DataSource.objects.create(
             name='Data Source 1',
-            type=DataSourceTypeChoices.LOCAL,
+            type='local',
             source_url='file:///var/tmp/source1/'
         )
 

netbox/core/tests/test_filtersets.py

@@ -18,21 +18,21 @@ class DataSourceTestCase(TestCase, ChangeLoggedFilterSetTests):
         data_sources = (
             DataSource(
                 name='Data Source 1',
-                type=DataSourceTypeChoices.LOCAL,
+                type='local',
                 source_url='file:///var/tmp/source1/',
                 status=DataSourceStatusChoices.NEW,
                 enabled=True
             ),
             DataSource(
                 name='Data Source 2',
-                type=DataSourceTypeChoices.LOCAL,
+                type='local',
                 source_url='file:///var/tmp/source2/',
                 status=DataSourceStatusChoices.SYNCING,
                 enabled=True
             ),
             DataSource(
                 name='Data Source 3',
-                type=DataSourceTypeChoices.GIT,
+                type='git',
                 source_url='https://example.com/git/source3',
                 status=DataSourceStatusChoices.COMPLETED,
                 enabled=False
@@ -45,7 +45,7 @@ class DataSourceTestCase(TestCase, ChangeLoggedFilterSetTests):
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
 
     def test_type(self):
-        params = {'type': [DataSourceTypeChoices.LOCAL]}
+        params = {'type': ['local']}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
 
     def test_enabled(self):
@@ -66,9 +66,9 @@ class DataFileTestCase(TestCase, ChangeLoggedFilterSetTests):
     @classmethod
     def setUpTestData(cls):
         data_sources = (
-            DataSource(name='Data Source 1', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source1/'),
+            DataSource(name='Data Source 1', type='local', source_url='file:///var/tmp/source1/'),
-            DataSource(name='Data Source 2', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source2/'),
+            DataSource(name='Data Source 2', type='local', source_url='file:///var/tmp/source2/'),
-            DataSource(name='Data Source 3', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source3/'),
+            DataSource(name='Data Source 3', type='local', source_url='file:///var/tmp/source3/'),
         )
         DataSource.objects.bulk_create(data_sources)
 

netbox/core/tests/test_views.py

@@ -1,7 +1,6 @@
 from django.utils import timezone
 
 from utilities.testing import ViewTestCases, create_tags
-from ..choices import *
 from ..models import *
 
 
@@ -11,9 +10,9 @@ class DataSourceTestCase(ViewTestCases.PrimaryObjectViewTestCase):
     @classmethod
     def setUpTestData(cls):
         data_sources = (
-            DataSource(name='Data Source 1', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source1/'),
+            DataSource(name='Data Source 1', type='local', source_url='file:///var/tmp/source1/'),
-            DataSource(name='Data Source 2', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source2/'),
+            DataSource(name='Data Source 2', type='local', source_url='file:///var/tmp/source2/'),
-            DataSource(name='Data Source 3', type=DataSourceTypeChoices.LOCAL, source_url='file:///var/tmp/source3/'),
+            DataSource(name='Data Source 3', type='local', source_url='file:///var/tmp/source3/'),
         )
         DataSource.objects.bulk_create(data_sources)
 
@@ -21,7 +20,7 @@ class DataSourceTestCase(ViewTestCases.PrimaryObjectViewTestCase):
 
         cls.form_data = {
             'name': 'Data Source X',
-            'type': DataSourceTypeChoices.GIT,
+            'type': 'git',
             'source_url': 'http:///exmaple/com/foo/bar/',
             'description': 'Something',
             'comments': 'Foo bar baz',
@@ -29,10 +28,10 @@ class DataSourceTestCase(ViewTestCases.PrimaryObjectViewTestCase):
         }
 
         cls.csv_data = (
-            f"name,type,source_url,enabled",
+            "name,type,source_url,enabled",
-            f"Data Source 4,{DataSourceTypeChoices.LOCAL},file:///var/tmp/source4/,true",
+            "Data Source 4,local,file:///var/tmp/source4/,true",
-            f"Data Source 5,{DataSourceTypeChoices.LOCAL},file:///var/tmp/source4/,true",
+            "Data Source 5,local,file:///var/tmp/source4/,true",
-            f"Data Source 6,{DataSourceTypeChoices.GIT},http:///exmaple/com/foo/bar/,false",
+            "Data Source 6,git,http:///exmaple/com/foo/bar/,false",
         )
 
         cls.csv_update_data = (
@@ -60,7 +59,7 @@ class DataFileTestCase(
     def setUpTestData(cls):
         datasource = DataSource.objects.create(
             name='Data Source 1',
-            type=DataSourceTypeChoices.LOCAL,
+            type='local',
             source_url='file:///var/tmp/source1/'
         )
 

netbox/dcim/api/serializers.py

@@ -343,9 +343,9 @@ class DeviceTypeSerializer(NetBoxModelSerializer):
         model = DeviceType
         fields = [
             'id', 'url', 'display', 'manufacturer', 'default_platform', 'model', 'slug', 'part_number', 'u_height',
-            'is_full_depth', 'subdevice_role', 'airflow', 'weight', 'weight_unit', 'front_image', 'rear_image',
+            'exclude_from_utilization', 'is_full_depth', 'subdevice_role', 'airflow', 'weight', 'weight_unit',
-            'description', 'comments', 'tags', 'custom_fields', 'created', 'last_updated', 'device_count',
+            'front_image', 'rear_image', 'description', 'comments', 'tags', 'custom_fields', 'created', 'last_updated',
-            'console_port_template_count', 'console_server_port_template_count', 'power_port_template_count',
+            'device_count', 'console_port_template_count', 'console_server_port_template_count', 'power_port_template_count',
             'power_outlet_template_count', 'interface_template_count', 'front_port_template_count',
             'rear_port_template_count', 'device_bay_template_count', 'module_bay_template_count',
             'inventory_item_template_count',

netbox/dcim/api/views.py

@@ -24,6 +24,7 @@ from netbox.api.viewsets import NetBoxModelViewSet, MPTTLockedMixin
 from netbox.api.viewsets.mixins import SequentialBulkCreatesMixin
 from netbox.constants import NESTED_SERIALIZER_PREFIX
 from utilities.api import get_serializer_for_model
+from utilities.query_functions import CollateAsChar
 from utilities.utils import count_related
 from virtualization.models import VirtualMachine
 from . import serializers
@@ -505,6 +506,10 @@ class InterfaceViewSet(PathEndpointMixin, NetBoxModelViewSet):
     filterset_class = filtersets.InterfaceFilterSet
     brief_prefetch_fields = ['device']
 
+    def get_bulk_destroy_queryset(self):
+        # Ensure child interfaces are deleted prior to their parents
+        return self.get_queryset().order_by('device', 'parent', CollateAsChar('_name'))
+
 
 class FrontPortViewSet(PassThroughPortMixin, NetBoxModelViewSet):
     queryset = FrontPort.objects.prefetch_related(

netbox/dcim/choices.py

@@ -80,10 +80,10 @@ class RackWidthChoices(ChoiceSet):
     WIDTH_23IN = 23
 
     CHOICES = (
-        (WIDTH_10IN, _('10 inches')),
+        (WIDTH_10IN, _('{n} inches').format(n=10)),
-        (WIDTH_19IN, _('19 inches')),
+        (WIDTH_19IN, _('{n} inches').format(n=19)),
-        (WIDTH_21IN, _('21 inches')),
+        (WIDTH_21IN, _('{n} inches').format(n=21)),
-        (WIDTH_23IN, _('23 inches')),
+        (WIDTH_23IN, _('{n} inches').format(n=23)),
     )
 
 

netbox/dcim/filtersets.py

@@ -496,7 +496,8 @@ class DeviceTypeFilterSet(NetBoxModelFilterSet):
     class Meta:
         model = DeviceType
         fields = [
-            'id', 'model', 'slug', 'part_number', 'u_height', 'is_full_depth', 'subdevice_role', 'airflow', 'weight', 'weight_unit',
+            'id', 'model', 'slug', 'part_number', 'u_height', 'exclude_from_utilization', 'is_full_depth', 'subdevice_role',
+            'airflow', 'weight', 'weight_unit',
         ]
 
     def search(self, queryset, name, value):

netbox/dcim/forms/bulk_edit.py

@@ -420,6 +420,11 @@ class DeviceTypeBulkEditForm(NetBoxModelBulkEditForm):
         widget=BulkEditNullBooleanSelect(),
         label=_('Is full depth')
     )
+    exclude_from_utilization = forms.NullBooleanField(
+        required=False,
+        widget=BulkEditNullBooleanSelect(),
+        label=_('Exclude from utilization')
+    )
     airflow = forms.ChoiceField(
         label=_('Airflow'),
         choices=add_blank_choice(DeviceAirflowChoices),
@@ -445,7 +450,10 @@ class DeviceTypeBulkEditForm(NetBoxModelBulkEditForm):
 
     model = DeviceType
     fieldsets = (
-        (_('Device Type'), ('manufacturer', 'default_platform', 'part_number', 'u_height', 'is_full_depth', 'airflow', 'description')),
+        (_('Device Type'), (
+            'manufacturer', 'default_platform', 'part_number', 'u_height', 'exclude_from_utilization', 'is_full_depth',
+            'airflow', 'description',
+        )),
         (_('Weight'), ('weight', 'weight_unit')),
     )
     nullable_fields = ('part_number', 'airflow', 'weight', 'weight_unit', 'description', 'comments')

netbox/dcim/forms/bulk_import.py

@@ -335,8 +335,8 @@ class DeviceTypeImportForm(NetBoxModelImportForm):
     class Meta:
         model = DeviceType
         fields = [
-            'manufacturer', 'default_platform', 'model', 'slug', 'part_number', 'u_height', 'is_full_depth',
+            'manufacturer', 'default_platform', 'model', 'slug', 'part_number', 'u_height', 'exclude_from_utilization',
-            'subdevice_role', 'airflow', 'description', 'weight', 'weight_unit', 'comments', 'tags',
+            'is_full_depth', 'subdevice_role', 'airflow', 'description', 'weight', 'weight_unit', 'comments', 'tags',
         ]
 
 

netbox/dcim/forms/common.py

@@ -116,17 +116,17 @@ class ModuleCommonForm(forms.Form):
                 # It is not possible to adopt components already belonging to a module
                 if adopt_components and existing_item and existing_item.module:
                     raise forms.ValidationError(
-                        _("Cannot adopt {name} '{resolved_name}' as it already belongs to a module").format(
+                        _("Cannot adopt {model} {name} as it already belongs to a module").format(
-                            name=template.component_model.__name__,
+                            model=template.component_model.__name__,
-                            resolved_name=resolved_name
+                            name=resolved_name
                         )
                     )
 
                 # If we are not adopting components we error if the component exists
                 if not adopt_components and resolved_name in installed_components:
                     raise forms.ValidationError(
-                        _("{name} - {resolved_name} already exists").format(
+                        _("A {model} named {name} already exists").format(
-                            name=template.component_model.__name__,
+                            model=template.component_model.__name__,
-                            resolved_name=resolved_name
+                            name=resolved_name
                         )
                     )

netbox/dcim/forms/model_forms.py

@@ -302,7 +302,8 @@ class DeviceTypeForm(NetBoxModelForm):
     fieldsets = (
         (_('Device Type'), ('manufacturer', 'model', 'slug', 'default_platform', 'description', 'tags')),
         (_('Chassis'), (
-            'u_height', 'is_full_depth', 'part_number', 'subdevice_role', 'airflow', 'weight', 'weight_unit',
+            'u_height', 'exclude_from_utilization', 'is_full_depth', 'part_number', 'subdevice_role', 'airflow',
+            'weight', 'weight_unit',
         )),
         (_('Images'), ('front_image', 'rear_image')),
     )
@@ -310,9 +311,9 @@ class DeviceTypeForm(NetBoxModelForm):
     class Meta:
         model = DeviceType
         fields = [
-            'manufacturer', 'model', 'slug', 'default_platform', 'part_number', 'u_height', 'is_full_depth',
+            'manufacturer', 'model', 'slug', 'default_platform', 'part_number', 'u_height', 'exclude_from_utilization',
-            'subdevice_role', 'airflow', 'weight', 'weight_unit', 'front_image', 'rear_image', 'description',
+            'is_full_depth', 'subdevice_role', 'airflow', 'weight', 'weight_unit', 'front_image', 'rear_image',
-            'comments', 'tags',
+            'description', 'comments', 'tags',
         ]
         widgets = {
             'front_image': ClearableFileInput(attrs={

netbox/dcim/migrations/0182_devicetype_exclude_from_utilization.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.2.5 on 2023-10-20 22:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('dcim', '0181_rename_device_role_device_role'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='devicetype',
+            name='exclude_from_utilization',
+            field=models.BooleanField(default=False),
+        ),
+    ]

netbox/dcim/migrations/0183_protect_child_interfaces.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.6 on 2023-10-20 11:48
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dcim', '0182_devicetype_exclude_from_utilization'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='interface',
+            name='parent',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.RESTRICT, related_name='child_interfaces', to='dcim.interface'),
+        ),
+    ]

netbox/dcim/models/device_component_templates.py

@@ -534,14 +534,16 @@ class FrontPortTemplate(ModularComponentTemplateModel):
             # Validate rear port assignment
             if self.rear_port.device_type != self.device_type:
                 raise ValidationError(
-                    _("Rear port ({}) must belong to the same device type").format(self.rear_port)
+                    _("Rear port ({name}) must belong to the same device type").format(name=self.rear_port)
                 )
 
             # Validate rear port position assignment
             if self.rear_port_position > self.rear_port.positions:
                 raise ValidationError(
-                    _("Invalid rear port position ({}); rear port {} has only {} positions").format(
+                    _("Invalid rear port position ({position}); rear port {name} has only {count} positions").format(
-                        self.rear_port_position, self.rear_port.name, self.rear_port.positions
+                        position=self.rear_port_position,
+                        name=self.rear_port.name,
+                        count=self.rear_port.positions
                     )
                 )
 

netbox/dcim/models/device_components.py

@@ -537,7 +537,7 @@ class BaseInterface(models.Model):
     )
     parent = models.ForeignKey(
         to='self',
-        on_delete=models.SET_NULL,
+        on_delete=models.RESTRICT,
         related_name='child_interfaces',
         null=True,
         blank=True,

netbox/dcim/models/devices.py

@@ -106,6 +106,11 @@ class DeviceType(ImageAttachmentsMixin, PrimaryModel, WeightMixin):
         default=1.0,
         verbose_name=_('height (U)')
     )
+    exclude_from_utilization = models.BooleanField(
+        default=False,
+        verbose_name=_('exclude from utilization'),
+        help_text=_('Exclude from rack utilization calculations.')
+    )
     is_full_depth = models.BooleanField(
         default=True,
         verbose_name=_('is full depth'),
@@ -297,8 +302,10 @@ class DeviceType(ImageAttachmentsMixin, PrimaryModel, WeightMixin):
                 )
                 if d.position not in u_available:
                     raise ValidationError({
-                        'u_height': _("Device {} in rack {} does not have sufficient space to accommodate a height of "
+                        'u_height': _(
-                                      "{}U").format(d, d.rack, self.u_height)
+                            "Device {device} in rack {rack} does not have sufficient space to accommodate a "
+                            "height of {height}U"
+                        ).format(device=d, rack=d.rack, height=self.u_height)
                     })
 
         # If modifying the height of an existing DeviceType to 0U, check for any instances assigned to a rack position.
@@ -915,7 +922,7 @@ class Device(
         if self.primary_ip4:
             if self.primary_ip4.family != 4:
                 raise ValidationError({
-                    'primary_ip4': _("{primary_ip4} is not an IPv4 address.").format(primary_ip4=self.primary_ip4)
+                    'primary_ip4': _("{ip} is not an IPv4 address.").format(ip=self.primary_ip4)
                 })
             if self.primary_ip4.assigned_object in vc_interfaces:
                 pass
@@ -924,13 +931,13 @@ class Device(
             else:
                 raise ValidationError({
                     'primary_ip4': _(
-                        "The specified IP address ({primary_ip4}) is not assigned to this device."
+                        "The specified IP address ({ip}) is not assigned to this device."
-                    ).format(primary_ip4=self.primary_ip4)
+                    ).format(ip=self.primary_ip4)
                 })
         if self.primary_ip6:
             if self.primary_ip6.family != 6:
                 raise ValidationError({
-                    'primary_ip6': _("{primary_ip6} is not an IPv6 address.").format(primary_ip6=self.primary_ip6m)
+                    'primary_ip6': _("{ip} is not an IPv6 address.").format(ip=self.primary_ip6)
                 })
             if self.primary_ip6.assigned_object in vc_interfaces:
                 pass
@@ -939,8 +946,8 @@ class Device(
             else:
                 raise ValidationError({
                     'primary_ip6': _(
-                        "The specified IP address ({primary_ip6}) is not assigned to this device."
+                        "The specified IP address ({ip}) is not assigned to this device."
-                    ).format(primary_ip6=self.primary_ip6)
+                    ).format(ip=self.primary_ip6)
                 })
         if self.oob_ip:
             if self.oob_ip.assigned_object in vc_interfaces:
@@ -958,17 +965,19 @@ class Device(
                 raise ValidationError({
                     'platform': _(
                         "The assigned platform is limited to {platform_manufacturer} device types, but this device's "
-                        "type belongs to {device_type_manufacturer}."
+                        "type belongs to {devicetype_manufacturer}."
                     ).format(
                         platform_manufacturer=self.platform.manufacturer,
-                        device_type_manufacturer=self.device_type.manufacturer
+                        devicetype_manufacturer=self.device_type.manufacturer
                     )
                 })
 
         # A Device can only be assigned to a Cluster in the same Site (or no Site)
         if self.cluster and self.cluster.site is not None and self.cluster.site != self.site:
             raise ValidationError({
-                'cluster': _("The assigned cluster belongs to a different site ({})").format(self.cluster.site)
+                'cluster': _("The assigned cluster belongs to a different site ({site})").format(
+                    site=self.cluster.site
+                )
             })
 
         # Validate virtual chassis assignment
@@ -1440,8 +1449,8 @@ class VirtualDeviceContext(PrimaryModel):
             if primary_ip.family != family:
                 raise ValidationError({
                     f'primary_ip{family}': _(
-                        "{primary_ip} is not an IPv{family} address."
+                        "{ip} is not an IPv{family} address."
-                    ).format(family=family, primary_ip=primary_ip)
+                    ).format(family=family, ip=primary_ip)
                 })
             device_interfaces = self.device.vc_interfaces(if_master=False)
             if primary_ip.assigned_object not in device_interfaces:

netbox/dcim/models/racks.py

@@ -357,7 +357,7 @@ class Rack(ContactsMixin, ImageAttachmentsMixin, PrimaryModel, WeightMixin):
 
         return [u for u in elevation.values()]
 
-    def get_available_units(self, u_height=1, rack_face=None, exclude=None):
+    def get_available_units(self, u_height=1, rack_face=None, exclude=None, ignore_excluded_devices=False):
         """
         Return a list of units within the rack available to accommodate a device of a given U height (default 1).
         Optionally exclude one or more devices when calculating empty units (needed when moving a device from one
@@ -366,9 +366,13 @@ class Rack(ContactsMixin, ImageAttachmentsMixin, PrimaryModel, WeightMixin):
         :param u_height: Minimum number of contiguous free units required
         :param rack_face: The face of the rack (front or rear) required; 'None' if device is full depth
         :param exclude: List of devices IDs to exclude (useful when moving a device within a rack)
+        :param ignore_excluded_devices: Ignore devices that are marked to exclude from utilization calculations
         """
         # Gather all devices which consume U space within the rack
         devices = self.devices.prefetch_related('device_type').filter(position__gte=1)
+        if ignore_excluded_devices:
+            devices = devices.exclude(device_type__exclude_from_utilization=True)
+
         if exclude is not None:
             devices = devices.exclude(pk__in=exclude)
 
@@ -453,7 +457,7 @@ class Rack(ContactsMixin, ImageAttachmentsMixin, PrimaryModel, WeightMixin):
         """
         # Determine unoccupied units
         total_units = len(list(self.units))
-        available_units = self.get_available_units(u_height=0.5)
+        available_units = self.get_available_units(u_height=0.5, ignore_excluded_devices=True)
 
         # Remove reserved units
         for ru in self.get_reserved_units():
@@ -558,9 +562,9 @@ class RackReservation(PrimaryModel):
             invalid_units = [u for u in self.units if u not in self.rack.units]
             if invalid_units:
                 raise ValidationError({
-                    'units': _("Invalid unit(s) for {}U rack: {}").format(
+                    'units': _("Invalid unit(s) for {height}U rack: {unit_list}").format(
-                        self.rack.u_height,
+                        height=self.rack.u_height,
-                        ', '.join([str(u) for u in invalid_units]),
+                        unit_list=', '.join([str(u) for u in invalid_units])
                     ),
                 })
 
@@ -571,8 +575,8 @@ class RackReservation(PrimaryModel):
             conflicting_units = [u for u in self.units if u in reserved_units]
             if conflicting_units:
                 raise ValidationError({
-                    'units': _('The following units have already been reserved: {}').format(
+                    'units': _('The following units have already been reserved: {unit_list}').format(
-                        ', '.join([str(u) for u in conflicting_units]),
+                        unit_list=', '.join([str(u) for u in conflicting_units])
                     )
                 })
 

netbox/dcim/svg/cables.py

@@ -159,6 +159,7 @@ class CableTraceSVG:
             labels.append(location_label)
         elif instance._meta.model_name == 'circuit':
             labels[0] = f'Circuit {instance}'
+            labels.append(instance.type)
             labels.append(instance.provider)
             if instance.description:
                 labels.append(instance.description)
@@ -181,6 +182,8 @@ class CableTraceSVG:
         if hasattr(instance, 'role'):
             # Device
             return instance.role.color
+        elif instance._meta.model_name == 'circuit' and instance.type.color:
+            return instance.type.color
         else:
             # Other parent object
             return 'e0e0e0'

netbox/dcim/tables/devicetypes.py

@@ -98,6 +98,7 @@ class DeviceTypeTable(NetBoxTable):
         verbose_name=_('U Height'),
         template_code='{{ value|floatformat }}'
     )
+    exclude_from_utilization = columns.BooleanColumn()
     weight = columns.TemplateColumn(
         verbose_name=_('Weight'),
         template_code=WEIGHT,
@@ -142,9 +143,9 @@ class DeviceTypeTable(NetBoxTable):
     class Meta(NetBoxTable.Meta):
         model = models.DeviceType
         fields = (
-            'pk', 'id', 'model', 'manufacturer', 'default_platform', 'slug', 'part_number', 'u_height', 'is_full_depth',
+            'pk', 'id', 'model', 'manufacturer', 'default_platform', 'slug', 'part_number', 'u_height',
-            'subdevice_role', 'airflow', 'weight', 'description', 'comments', 'instance_count', 'tags', 'created',
+            'exclude_from_utilization', 'is_full_depth', 'subdevice_role', 'airflow', 'weight',
-            'last_updated',
+            'description', 'comments', 'instance_count', 'tags', 'created', 'last_updated',
         )
         default_columns = (
             'pk', 'model', 'manufacturer', 'part_number', 'u_height', 'is_full_depth', 'instance_count',

netbox/dcim/tests/test_api.py

@@ -1607,6 +1607,33 @@ class InterfaceTest(Mixins.ComponentTraceMixin, APIViewTestCases.APIViewTestCase
             },
         ]
 
+    def test_bulk_delete_child_interfaces(self):
+        interface1 = Interface.objects.get(name='Interface 1')
+        device = interface1.device
+        self.add_permissions('dcim.delete_interface')
+
+        # Create a child interface
+        child = Interface.objects.create(
+            device=device,
+            name='Interface 1A',
+            type=InterfaceTypeChoices.TYPE_VIRTUAL,
+            parent=interface1
+        )
+        self.assertEqual(device.interfaces.count(), 4)
+
+        # Attempt to delete only the parent interface
+        url = self._get_detail_url(interface1)
+        self.client.delete(url, **self.header)
+        self.assertEqual(device.interfaces.count(), 4)  # Parent was not deleted
+
+        # Attempt to bulk delete parent & child together
+        data = [
+            {"id": interface1.pk},
+            {"id": child.pk},
+        ]
+        self.client.delete(self._get_list_url(), data, format='json', **self.header)
+        self.assertEqual(device.interfaces.count(), 2)  # Child & parent were both deleted
+
 
 class FrontPortTest(APIViewTestCases.APIViewTestCase):
     model = FrontPort

netbox/dcim/tests/test_models.py

@@ -238,6 +238,40 @@ class RackTestCase(TestCase):
         # Check that Device1 is now assigned to Site B
         self.assertEqual(Device.objects.get(pk=device1.pk).site, site_b)
 
+    def test_utilization(self):
+        site = Site.objects.first()
+        rack = Rack.objects.first()
+
+        Device(
+            name='Device 1',
+            role=DeviceRole.objects.first(),
+            device_type=DeviceType.objects.first(),
+            site=site,
+            rack=rack,
+            position=1
+        ).save()
+        rack.refresh_from_db()
+        self.assertEqual(rack.get_utilization(), 1 / 42 * 100)
+
+        # create device excluded from utilization calculations
+        dt = DeviceType.objects.create(
+            manufacturer=Manufacturer.objects.first(),
+            model='Device Type 4',
+            slug='device-type-4',
+            u_height=1,
+            exclude_from_utilization=True
+        )
+        Device(
+            name='Device 2',
+            role=DeviceRole.objects.first(),
+            device_type=dt,
+            site=site,
+            rack=rack,
+            position=5
+        ).save()
+        rack.refresh_from_db()
+        self.assertEqual(rack.get_utilization(), 1 / 42 * 100)
+
 
 class DeviceTestCase(TestCase):
 

netbox/dcim/tests/test_views.py

@@ -2531,6 +2531,36 @@ class InterfaceTestCase(ViewTestCases.DeviceComponentViewTestCase):
         response = self.client.get(reverse('dcim:interface_trace', kwargs={'pk': interface1.pk}))
         self.assertHttpStatus(response, 200)
 
+    def test_bulk_delete_child_interfaces(self):
+        interface1 = Interface.objects.get(name='Interface 1')
+        device = interface1.device
+        self.add_permissions('dcim.delete_interface')
+
+        # Create a child interface
+        child = Interface.objects.create(
+            device=device,
+            name='Interface 1A',
+            type=InterfaceTypeChoices.TYPE_VIRTUAL,
+            parent=interface1
+        )
+        self.assertEqual(device.interfaces.count(), 6)
+
+        # Attempt to delete only the parent interface
+        data = {
+            'confirm': True,
+        }
+        self.client.post(self._get_url('delete', interface1), data)
+        self.assertEqual(device.interfaces.count(), 6)  # Parent was not deleted
+
+        # Attempt to bulk delete parent & child together
+        data = {
+            'pk': [interface1.pk, child.pk],
+            'confirm': True,
+            '_confirm': True,  # Form button
+        }
+        self.client.post(self._get_url('bulk_delete'), data)
+        self.assertEqual(device.interfaces.count(), 4)  # Child & parent were both deleted
+
 
 class FrontPortTestCase(ViewTestCases.DeviceComponentViewTestCase):
     model = FrontPort

netbox/dcim/views.py

@@ -1,5 +1,4 @@
 import traceback
-from collections import defaultdict
 
 from django.contrib import messages
 from django.contrib.contenttypes.models import ContentType
@@ -26,6 +25,7 @@ from tenancy.views import ObjectContactsView
 from utilities.forms import ConfirmationForm
 from utilities.paginator import EnhancedPaginator, get_paginate_count
 from utilities.permissions import get_permission_for_model
+from utilities.query_functions import CollateAsChar
 from utilities.utils import count_related
 from utilities.views import GetReturnURLMixin, ObjectPermissionRequiredMixin, ViewTab, register_model_view
 from virtualization.models import VirtualMachine
@@ -2562,7 +2562,8 @@ class InterfaceBulkDisconnectView(BulkDisconnectView):
 
 
 class InterfaceBulkDeleteView(generic.BulkDeleteView):
-    queryset = Interface.objects.all()
+    # Ensure child interfaces are deleted prior to their parents
+    queryset = Interface.objects.order_by('device', 'parent', CollateAsChar('_name'))
     filterset = filtersets.InterfaceFilterSet
     table = tables.InterfaceTable
 

netbox/extras/forms/model_forms.py

@@ -491,7 +491,7 @@ class ConfigRevisionForm(BootstrapMixin, forms.ModelForm, metaclass=ConfigFormMe
         (_('Security'), ('ALLOWED_URL_SCHEMES',)),
         (_('Banners'), ('BANNER_LOGIN', 'BANNER_MAINTENANCE', 'BANNER_TOP', 'BANNER_BOTTOM')),
         (_('Pagination'), ('PAGINATE_COUNT', 'MAX_PAGE_SIZE')),
-        (_('Validation'), ('CUSTOM_VALIDATORS',)),
+        (_('Validation'), ('CUSTOM_VALIDATORS', 'PROTECTION_RULES')),
         (_('User Preferences'), ('DEFAULT_USER_PREFERENCES',)),
         (_('Miscellaneous'), (
             'MAINTENANCE_MODE', 'GRAPHQL_ENABLED', 'CHANGELOG_RETENTION', 'JOB_RETENTION', 'MAPS_URL',
@@ -508,6 +508,7 @@ class ConfigRevisionForm(BootstrapMixin, forms.ModelForm, metaclass=ConfigFormMe
             'BANNER_TOP': forms.Textarea(attrs={'class': 'font-monospace'}),
             'BANNER_BOTTOM': forms.Textarea(attrs={'class': 'font-monospace'}),
             'CUSTOM_VALIDATORS': forms.Textarea(attrs={'class': 'font-monospace'}),
+            'PROTECTION_RULES': forms.Textarea(attrs={'class': 'font-monospace'}),
             'comment': forms.Textarea(),
         }
 

netbox/extras/management/commands/runscript.py

@@ -59,7 +59,7 @@ class Command(BaseCommand):
                 logger.error(f"Exception raised during script execution: {e}")
                 clear_webhooks.send(request)
                 job.data = ScriptOutputSerializer(script).data
-                job.terminate(status=JobStatusChoices.STATUS_ERRORED)
+                job.terminate(status=JobStatusChoices.STATUS_ERRORED, error=str(e))
 
             logger.info(f"Script completed in {job.duration}")
 

netbox/extras/migrations/0099_cachedvalue_ordering.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.2.6 on 2023-10-30 14:04
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('extras', '0098_webhook_custom_field_data_webhook_tags'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='cachedvalue',
+            options={'ordering': ('weight', 'object_type', 'value', 'object_id')},
+        ),
+    ]

netbox/extras/models/customfields.py

@@ -287,8 +287,8 @@ class CustomField(CloningMixin, ExportTemplatesMixin, ChangeLoggedModel):
             except ValidationError as err:
                 raise ValidationError({
                     'default': _(
-                        'Invalid default value "{default}": {message}'
+                        'Invalid default value "{value}": {error}'
-                    ).format(default=self.default, message=err.message)
+                    ).format(value=self.default, error=err.message)
                 })
 
         # Minimum/maximum values can be set only for numeric fields
@@ -332,8 +332,8 @@ class CustomField(CloningMixin, ExportTemplatesMixin, ChangeLoggedModel):
         elif self.object_type:
             raise ValidationError({
                 'object_type': _(
-                    "{type_display} fields may not define an object type.")
+                    "{type} fields may not define an object type.")
-                .format(type_display=self.get_type_display())
+                .format(type=self.get_type_display())
             })
 
     def serialize(self, value):

netbox/extras/models/search.py

@@ -50,7 +50,7 @@ class CachedValue(models.Model):
     )
 
     class Meta:
-        ordering = ('weight', 'object_type', 'object_id')
+        ordering = ('weight', 'object_type', 'value', 'object_id')
         verbose_name = _('cached value')
         verbose_name_plural = _('cached values')
 

netbox/extras/reports.py

@@ -40,8 +40,8 @@ def run_report(job, *args, **kwargs):
 
     try:
         report.run(job)
-    except Exception:
+    except Exception as e:
-        job.terminate(status=JobStatusChoices.STATUS_ERRORED)
+        job.terminate(status=JobStatusChoices.STATUS_ERRORED, error=str(e))
         logging.error(f"Error during execution of report {job.name}")
     finally:
         # Schedule the next job if an interval has been set
@@ -230,7 +230,7 @@ class Report(object):
             stacktrace = traceback.format_exc()
             self.log_failure(None, f"An exception occurred: {type(e).__name__}: {e} <pre>{stacktrace}</pre>")
             logger.error(f"Exception raised during report execution: {e}")
-            job.terminate(status=JobStatusChoices.STATUS_ERRORED)
+            job.terminate(status=JobStatusChoices.STATUS_ERRORED, error=str(e))
 
         # Perform any post-run tasks
         self.post_run()

netbox/extras/scripts.py

@@ -519,7 +519,7 @@ def run_script(data, request, job, commit=True, **kwargs):
                 logger.error(f"Exception raised during script execution: {e}")
             script.log_info("Database changes have been reverted due to error.")
             job.data = ScriptOutputSerializer(script).data
-            job.terminate(status=JobStatusChoices.STATUS_ERRORED)
+            job.terminate(status=JobStatusChoices.STATUS_ERRORED, error=str(e))
             clear_webhooks.send(request)
 
         logger.info(f"Script completed in {job.duration}")

netbox/extras/signals.py

@@ -2,8 +2,10 @@ import importlib
 import logging
 
 from django.contrib.contenttypes.models import ContentType
+from django.core.exceptions import ValidationError
 from django.db.models.signals import m2m_changed, post_save, pre_delete
 from django.dispatch import receiver, Signal
+from django.utils.translation import gettext_lazy as _
 from django_prometheus.models import model_deletes, model_inserts, model_updates
 
 from extras.validators import CustomValidator
@@ -178,11 +180,7 @@ m2m_changed.connect(handle_cf_removed_obj_types, sender=CustomField.content_type
 # Custom validation
 #
 
-@receiver(post_clean)
+def run_validators(instance, validators):
-def run_custom_validators(sender, instance, **kwargs):
-    config = get_config()
-    model_name = f'{sender._meta.app_label}.{sender._meta.model_name}'
-    validators = config.CUSTOM_VALIDATORS.get(model_name, [])
 
     for validator in validators:
 
@@ -198,6 +196,29 @@ def run_custom_validators(sender, instance, **kwargs):
         validator(instance)
 
 
+@receiver(post_clean)
+def run_save_validators(sender, instance, **kwargs):
+    model_name = f'{sender._meta.app_label}.{sender._meta.model_name}'
+    validators = get_config().CUSTOM_VALIDATORS.get(model_name, [])
+
+    run_validators(instance, validators)
+
+
+@receiver(pre_delete)
+def run_delete_validators(sender, instance, **kwargs):
+    model_name = f'{sender._meta.app_label}.{sender._meta.model_name}'
+    validators = get_config().PROTECTION_RULES.get(model_name, [])
+
+    try:
+        run_validators(instance, validators)
+    except ValidationError as e:
+        raise AbortRequest(
+            _("Deletion is prevented by a protection rule: {message}").format(
+                message=e
+            )
+        )
+
+
 #
 # Dynamic configuration
 #

netbox/extras/tests/test_customvalidation.py

@@ -1,10 +1,13 @@
 from django.conf import settings
 from django.core.exceptions import ValidationError
+from django.db import transaction
 from django.test import TestCase, override_settings
 
 from ipam.models import ASN, RIR
+from dcim.choices import SiteStatusChoices
 from dcim.models import Site
 from extras.validators import CustomValidator
+from utilities.exceptions import AbortRequest
 
 
 class MyValidator(CustomValidator):
@@ -14,6 +17,20 @@ class MyValidator(CustomValidator):
             self.fail("Name must be foo!")
 
 
+eq_validator = CustomValidator({
+    'asn': {
+        'eq': 100
+    }
+})
+
+
+neq_validator = CustomValidator({
+    'asn': {
+        'neq': 100
+    }
+})
+
+
 min_validator = CustomValidator({
     'asn': {
         'min': 65000
@@ -77,6 +94,18 @@ class CustomValidatorTest(TestCase):
         validator = settings.CUSTOM_VALIDATORS['ipam.asn'][0]
         self.assertIsInstance(validator, CustomValidator)
 
+    @override_settings(CUSTOM_VALIDATORS={'ipam.asn': [eq_validator]})
+    def test_eq(self):
+        ASN(asn=100, rir=RIR.objects.first()).clean()
+        with self.assertRaises(ValidationError):
+            ASN(asn=99, rir=RIR.objects.first()).clean()
+
+    @override_settings(CUSTOM_VALIDATORS={'ipam.asn': [neq_validator]})
+    def test_neq(self):
+        ASN(asn=99, rir=RIR.objects.first()).clean()
+        with self.assertRaises(ValidationError):
+            ASN(asn=100, rir=RIR.objects.first()).clean()
+
     @override_settings(CUSTOM_VALIDATORS={'ipam.asn': [min_validator]})
     def test_min(self):
         with self.assertRaises(ValidationError):
@@ -147,7 +176,7 @@ class CustomValidatorConfigTest(TestCase):
     @override_settings(
         CUSTOM_VALIDATORS={
             'dcim.site': (
-                'extras.tests.test_customvalidator.MyValidator',
+                'extras.tests.test_customvalidation.MyValidator',
             )
         }
     )
@@ -159,3 +188,62 @@ class CustomValidatorConfigTest(TestCase):
         Site(name='foo', slug='foo').clean()
         with self.assertRaises(ValidationError):
             Site(name='bar', slug='bar').clean()
+
+
+class ProtectionRulesConfigTest(TestCase):
+
+    @override_settings(
+        PROTECTION_RULES={
+            'dcim.site': [
+                {'status': {'eq': SiteStatusChoices.STATUS_DECOMMISSIONING}}
+            ]
+        }
+    )
+    def test_plain_data(self):
+        """
+        Test custom validator configuration using plain data (as opposed to a CustomValidator
+        class)
+        """
+        # Create a site with a protected status
+        site = Site(name='Site 1', slug='site-1', status=SiteStatusChoices.STATUS_ACTIVE)
+        site.save()
+
+        # Try to delete it
+        with self.assertRaises(AbortRequest):
+            with transaction.atomic():
+                site.delete()
+
+        # Change its status to an allowed value
+        site.status = SiteStatusChoices.STATUS_DECOMMISSIONING
+        site.save()
+
+        # Deletion should now succeed
+        site.delete()
+
+    @override_settings(
+        PROTECTION_RULES={
+            'dcim.site': (
+                'extras.tests.test_customvalidation.MyValidator',
+            )
+        }
+    )
+    def test_dotted_path(self):
+        """
+        Test custom validator configuration using a dotted path (string) reference to a
+        CustomValidator class.
+        """
+        # Create a site with a protected name
+        site = Site(name='bar', slug='bar')
+        site.save()
+
+        # Try to delete it
+        with self.assertRaises(AbortRequest):
+            with transaction.atomic():
+                site.delete()
+
+        # Change the name to an allowed value
+        site.name = site.slug = 'foo'
+        site.save()
+
+        # Deletion should now succeed
+        site.delete()

netbox/extras/validators.py

@@ -1,15 +1,38 @@
-from django.core.exceptions import ValidationError
 from django.core import validators
+from django.core.exceptions import ValidationError
+from django.utils.translation import gettext_lazy as _
 
 # NOTE: As this module may be imported by configuration.py, we cannot import
 # anything from NetBox itself.
 
 
+class IsEqualValidator(validators.BaseValidator):
+    """
+    Employed by CustomValidator to require a specific value.
+    """
+    message = _("Ensure this value is equal to %(limit_value)s.")
+    code = "is_equal"
+
+    def compare(self, a, b):
+        return a != b
+
+
+class IsNotEqualValidator(validators.BaseValidator):
+    """
+    Employed by CustomValidator to exclude a specific value.
+    """
+    message = _("Ensure this value does not equal %(limit_value)s.")
+    code = "is_not_equal"
+
+    def compare(self, a, b):
+        return a == b
+
+
 class IsEmptyValidator:
     """
     Employed by CustomValidator to enforce required fields.
     """
-    message = "This field must be empty."
+    message = _("This field must be empty.")
     code = 'is_empty'
 
     def __init__(self, enforce=True):
@@ -24,7 +47,7 @@ class IsNotEmptyValidator:
     """
     Employed by CustomValidator to enforce prohibited fields.
     """
-    message = "This field must not be empty."
+    message = _("This field must not be empty.")
     code = 'not_empty'
 
     def __init__(self, enforce=True):
@@ -50,6 +73,8 @@ class CustomValidator:
     :param validation_rules: A dictionary mapping object attributes to validation rules
     """
     VALIDATORS = {
+        'eq': IsEqualValidator,
+        'neq': IsNotEqualValidator,
         'min': validators.MinValueValidator,
         'max': validators.MaxValueValidator,
         'min_length': validators.MinLengthValidator,

netbox/ipam/forms/model_forms.py

@@ -372,14 +372,14 @@ class IPAddressForm(TenancyForm, NetBoxModelForm):
         # Do not allow assigning a network ID or broadcast address to an interface.
         if interface and (address := self.cleaned_data.get('address')):
             if address.ip == address.network:
-                msg = _("{address} is a network ID, which may not be assigned to an interface.").format(address=address)
+                msg = _("{ip} is a network ID, which may not be assigned to an interface.").format(ip=address.ip)
                 if address.version == 4 and address.prefixlen not in (31, 32):
                     raise ValidationError(msg)
                 if address.version == 6 and address.prefixlen not in (127, 128):
                     raise ValidationError(msg)
             if address.version == 4 and address.ip == address.broadcast and address.prefixlen not in (31, 32):
-                msg = _("{address} is a broadcast address, which may not be assigned to an interface.").format(
+                msg = _("{ip} is a broadcast address, which may not be assigned to an interface.").format(
-                    address=address
+                    ip=address.ip
                 )
                 raise ValidationError(msg)
 

netbox/ipam/models/ip.py

@@ -140,8 +140,11 @@ class Aggregate(GetAvailablePrefixesMixin, PrimaryModel):
             if covering_aggregates:
                 raise ValidationError({
                     'prefix': _(
-                        "Aggregates cannot overlap. {} is already covered by an existing aggregate ({})."
+                        "Aggregates cannot overlap. {prefix} is already covered by an existing aggregate ({aggregate})."
-                    ).format(self.prefix, covering_aggregates[0])
+                    ).format(
+                        prefix=self.prefix,
+                        aggregate=covering_aggregates[0]
+                    )
                 })
 
             # Ensure that the aggregate being added does not cover an existing aggregate
@@ -150,8 +153,11 @@ class Aggregate(GetAvailablePrefixesMixin, PrimaryModel):
                 covered_aggregates = covered_aggregates.exclude(pk=self.pk)
             if covered_aggregates:
                 raise ValidationError({
-                    'prefix': _("Aggregates cannot overlap. {} covers an existing aggregate ({}).").format(
+                    'prefix': _(
-                        self.prefix, covered_aggregates[0]
+                        "Prefixes cannot overlap aggregates. {prefix} covers an existing aggregate ({aggregate})."
+                    ).format(
+                        prefix=self.prefix,
+                        aggregate=covered_aggregates[0]
                     )
                 })
 
@@ -314,10 +320,11 @@ class Prefix(GetAvailablePrefixesMixin, PrimaryModel):
             if (self.vrf is None and get_config().ENFORCE_GLOBAL_UNIQUE) or (self.vrf and self.vrf.enforce_unique):
                 duplicate_prefixes = self.get_duplicates()
                 if duplicate_prefixes:
+                    table = _("VRF {vrf}").format(vrf=self.vrf) if self.vrf else _("global table")
                     raise ValidationError({
-                        'prefix': _("Duplicate prefix found in {}: {}").format(
+                        'prefix': _("Duplicate prefix found in {table}: {prefix}").format(
-                            _("VRF {}").format(self.vrf) if self.vrf else _("global table"),
+                            table=table,
-                            duplicate_prefixes.first(),
+                            prefix=duplicate_prefixes.first(),
                         )
                     })
 
@@ -843,10 +850,11 @@ class IPAddress(PrimaryModel):
                         self.role not in IPADDRESS_ROLES_NONUNIQUE or
                         any(dip.role not in IPADDRESS_ROLES_NONUNIQUE for dip in duplicate_ips)
                 ):
+                    table = _("VRF {vrf}").format(vrf=self.vrf) if self.vrf else _("global table")
                     raise ValidationError({
-                        'address': _("Duplicate IP address found in {}: {}").format(
+                        'address': _("Duplicate IP address found in {table}: {ipaddress}").format(
-                            _("VRF {}").format(self.vrf) if self.vrf else _("global table"),
+                            table=table,
-                            duplicate_ips.first(),
+                            ipaddress=duplicate_ips.first(),
                         )
                     })
 

netbox/ipam/models/vlans.py

@@ -234,8 +234,8 @@ class VLAN(PrimaryModel):
         if self.group and not self.group.min_vid <= self.vid <= self.group.max_vid:
             raise ValidationError({
                 'vid': _(
-                    "VID must be between {min_vid} and {max_vid} for VLANs in group {group}"
+                    "VID must be between {minimum} and {maximum} for VLANs in group {group}"
-                ).format(min_vid=self.group.min_vid, max_vid=self.group.max_vid, group=self.group)
+                ).format(minimum=self.group.min_vid, maximum=self.group.max_vid, group=self.group)
             })
 
     def get_status_color(self):

netbox/netbox/api/viewsets/__init__.py

@@ -2,7 +2,7 @@ import logging
 
 from django.core.exceptions import ObjectDoesNotExist, PermissionDenied
 from django.db import transaction
-from django.db.models import ProtectedError
+from django.db.models import ProtectedError, RestrictedError
 from django_pglocks import advisory_lock
 from netbox.constants import ADVISORY_LOCK_KEYS
 from rest_framework import mixins as drf_mixins
@@ -91,8 +91,11 @@ class NetBoxModelViewSet(
 
         try:
             return super().dispatch(request, *args, **kwargs)
-        except ProtectedError as e:
+        except (ProtectedError, RestrictedError) as e:
+            if type(e) is ProtectedError:
                 protected_objects = list(e.protected_objects)
+            else:
+                protected_objects = list(e.restricted_objects)
             msg = f'Unable to delete object. {len(protected_objects)} dependent objects were found: '
             msg += ', '.join([f'{obj} ({obj.pk})' for obj in protected_objects])
             logger.warning(msg)

netbox/netbox/api/viewsets/mixins.py

@@ -137,11 +137,14 @@ class BulkUpdateModelMixin:
         }
     ]
     """
+    def get_bulk_update_queryset(self):
+        return self.get_queryset()
+
     def bulk_update(self, request, *args, **kwargs):
         partial = kwargs.pop('partial', False)
         serializer = BulkOperationSerializer(data=request.data, many=True)
         serializer.is_valid(raise_exception=True)
-        qs = self.get_queryset().filter(
+        qs = self.get_bulk_update_queryset().filter(
             pk__in=[o['id'] for o in serializer.data]
         )
 
@@ -184,10 +187,13 @@ class BulkDestroyModelMixin:
         {"id": 456}
     ]
     """
+    def get_bulk_destroy_queryset(self):
+        return self.get_queryset()
+
     def bulk_destroy(self, request, *args, **kwargs):
         serializer = BulkOperationSerializer(data=request.data, many=True)
         serializer.is_valid(raise_exception=True)
-        qs = self.get_queryset().filter(
+        qs = self.get_bulk_destroy_queryset().filter(
             pk__in=[o['id'] for o in serializer.data]
         )
 

netbox/netbox/config/parameters.py

@@ -152,9 +152,17 @@ PARAMS = (
         description=_("Custom validation rules (JSON)"),
         field=forms.JSONField,
         field_kwargs={
-            'widget': forms.Textarea(
+            'widget': forms.Textarea(),
-                attrs={'class': 'vLargeTextField'}
+        },
     ),
+    ConfigParam(
+        name='PROTECTION_RULES',
+        label=_('Protection rules'),
+        default={},
+        description=_("Deletion protection rules (JSON)"),
+        field=forms.JSONField,
+        field_kwargs={
+            'widget': forms.Textarea(),
         },
     ),
 

netbox/netbox/data_backends.py

@@ -0,0 +1,53 @@
+from contextlib import contextmanager
+from urllib.parse import urlparse
+
+__all__ = (
+    'DataBackend',
+)
+
+
+class DataBackend:
+    """
+    A data backend represents a specific system of record for data, such as a git repository or Amazon S3 bucket.
+
+    Attributes:
+        name: The identifier under which this backend will be registered in NetBox
+        label: The human-friendly name for this backend
+        is_local: A boolean indicating whether this backend accesses local data
+        parameters: A dictionary mapping configuration form field names to their classes
+        sensitive_parameters: An iterable of field names for which the values should not be displayed to the user
+    """
+    is_local = False
+    parameters = {}
+    sensitive_parameters = []
+
+    # Prevent Django's template engine from calling the backend
+    # class when referenced via DataSource.backend_class
+    do_not_call_in_templates = True
+
+    def __init__(self, url, **kwargs):
+        self.url = url
+        self.params = kwargs
+        self.config = self.init_config()
+
+    def init_config(self):
+        """
+        A hook to initialize the instance's configuration. The data returned by this method is assigned to the
+        instance's `config` attribute upon initialization, which can be referenced by the `fetch()` method.
+        """
+        return
+
+    @property
+    def url_scheme(self):
+        return urlparse(self.url).scheme.lower()
+
+    @contextmanager
+    def fetch(self):
+        """
+        A context manager which performs the following:
+
+        1. Handles all setup and synchronization
+        2. Yields the local path at which data has been replicated
+        3. Performs any necessary cleanup
+        """
+        raise NotImplemented()

netbox/netbox/navigation/menu.py

@@ -1,4 +1,4 @@
-from django.utils.translation import gettext as _
+from django.utils.translation import gettext_lazy as _
 
 from netbox.registry import registry
 from utilities.choices import ButtonColorChoices

netbox/netbox/plugins/__init__.py

@@ -8,6 +8,7 @@ from packaging import version
 
 from netbox.registry import registry
 from netbox.search import register_search
+from netbox.utils import register_data_backend
 from .navigation import *
 from .registration import *
 from .templates import *
@@ -24,6 +25,7 @@ registry['plugins'].update({
 
 DEFAULT_RESOURCE_PATHS = {
     'search_indexes': 'search.indexes',
+    'data_backends': 'data_backends.backends',
     'graphql_schema': 'graphql.schema',
     'menu': 'navigation.menu',
     'menu_items': 'navigation.menu_items',
@@ -70,6 +72,7 @@ class PluginConfig(AppConfig):
 
     # Optional plugin resources
     search_indexes = None
+    data_backends = None
     graphql_schema = None
     menu = None
     menu_items = None
@@ -98,6 +101,11 @@ class PluginConfig(AppConfig):
         for idx in search_indexes:
             register_search(idx)
 
+        # Register data backends (if defined)
+        data_backends = self._load_resource('data_backends') or []
+        for backend in data_backends:
+            register_data_backend()(backend)
+
         # Register template content (if defined)
         if template_extensions := self._load_resource('template_extensions'):
             register_template_extensions(template_extensions)

netbox/netbox/tests/dummy_plugin/data_backends.py

@@ -0,0 +1,18 @@
+from contextlib import contextmanager
+
+from netbox.data_backends import DataBackend
+
+
+class DummyBackend(DataBackend):
+    name = 'dummy'
+    label = 'Dummy'
+    is_local = True
+
+    @contextmanager
+    def fetch(self):
+        yield '/tmp'
+
+
+backends = (
+    DummyBackend,
+)

netbox/netbox/tests/test_plugins.py

@@ -6,6 +6,7 @@ from django.test import Client, TestCase, override_settings
 from django.urls import reverse
 
 from netbox.tests.dummy_plugin import config as dummy_config
+from netbox.tests.dummy_plugin.data_backends import DummyBackend
 from netbox.plugins.navigation import PluginMenu
 from netbox.plugins.utils import get_plugin_config
 from netbox.graphql.schema import Query
@@ -111,6 +112,13 @@ class PluginTest(TestCase):
         """
         self.assertIn('netbox.tests.dummy_plugin.middleware.DummyMiddleware', settings.MIDDLEWARE)
 
+    def test_data_backends(self):
+        """
+        Check registered data backends.
+        """
+        self.assertIn('dummy', registry['data_backends'])
+        self.assertIs(registry['data_backends']['dummy'], DummyBackend)
+
     def test_queues(self):
         """
         Check that plugin queues are registered with the accurate name.

netbox/netbox/utils.py

@@ -0,0 +1,26 @@
+from netbox.registry import registry
+
+__all__ = (
+    'get_data_backend_choices',
+    'register_data_backend',
+)
+
+
+def get_data_backend_choices():
+    return [
+        (None, '---------'),
+        *[
+            (name, cls.label) for name, cls in registry['data_backends'].items()
+        ]
+    ]
+
+
+def register_data_backend():
+    """
+    Decorator for registering a DataBackend class.
+    """
+    def _wrapper(cls):
+        registry['data_backends'][cls.name] = cls
+        return cls
+
+    return _wrapper

netbox/netbox/views/generic/bulk_views.py

@@ -7,7 +7,7 @@ from django.contrib.contenttypes.fields import GenericRel
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import FieldDoesNotExist, ObjectDoesNotExist, ValidationError
 from django.db import transaction, IntegrityError
-from django.db.models import ManyToManyField, ProtectedError
+from django.db.models import ManyToManyField, ProtectedError, RestrictedError
 from django.db.models.fields.reverse_related import ManyToManyRel
 from django.forms import HiddenInput, ModelMultipleChoiceField, MultipleHiddenInput
 from django.http import HttpResponse
@@ -798,14 +798,15 @@ class BulkDeleteView(GetReturnURLMixin, BaseMultiObjectView):
                 queryset = self.queryset.filter(pk__in=pk_list)
                 deleted_count = queryset.count()
                 try:
+                    with transaction.atomic():
                         for obj in queryset:
                             # Take a snapshot of change-logged models
                             if hasattr(obj, 'snapshot'):
                                 obj.snapshot()
                             obj.delete()
 
-                except ProtectedError as e:
+                except (ProtectedError, RestrictedError) as e:
-                    logger.info("Caught ProtectedError while attempting to delete objects")
+                    logger.info(f"Caught {type(e)} while attempting to delete objects")
                     handle_protectederror(queryset, request, e)
                     return redirect(self.get_return_url(request))
 

netbox/netbox/views/generic/object_views.py

@@ -1,9 +1,11 @@
 import logging
+from collections import defaultdict
 from copy import deepcopy
 
 from django.contrib import messages
-from django.db import transaction
+from django.db import router, transaction
-from django.db.models import ProtectedError
+from django.db.models import ProtectedError, RestrictedError
+from django.db.models.deletion import Collector
 from django.shortcuts import redirect, render
 from django.urls import reverse
 from django.utils.html import escape
@@ -320,6 +322,27 @@ class ObjectDeleteView(GetReturnURLMixin, BaseObjectView):
     def get_required_permission(self):
         return get_permission_for_model(self.queryset.model, 'delete')
 
+    def _get_dependent_objects(self, obj):
+        """
+        Returns a dictionary mapping of dependent objects (organized by model) which will be deleted as a result of
+        deleting the requested object.
+
+        Args:
+            obj: The object to return dependent objects for
+        """
+        using = router.db_for_write(obj._meta.model)
+        collector = Collector(using=using)
+        collector.collect([obj])
+
+        # Compile a mapping of models to instances
+        dependent_objects = defaultdict(list)
+        for model, instance in collector.instances_with_model():
+            # Omit the root object
+            if instance != obj:
+                dependent_objects[model].append(instance)
+
+        return dict(dependent_objects)
+
     #
     # Request handlers
     #
@@ -333,6 +356,7 @@ class ObjectDeleteView(GetReturnURLMixin, BaseObjectView):
         """
         obj = self.get_object(**kwargs)
         form = ConfirmationForm(initial=request.GET)
+        dependent_objects = self._get_dependent_objects(obj)
 
         # If this is an HTMX request, return only the rendered deletion form as modal content
         if is_htmx(request):
@@ -343,6 +367,7 @@ class ObjectDeleteView(GetReturnURLMixin, BaseObjectView):
                 'object_type': self.queryset.model._meta.verbose_name,
                 'form': form,
                 'form_url': form_url,
+                'dependent_objects': dependent_objects,
                 **self.get_extra_context(request, obj),
             })
 
@@ -350,6 +375,7 @@ class ObjectDeleteView(GetReturnURLMixin, BaseObjectView):
             'object': obj,
             'form': form,
             'return_url': self.get_return_url(request, obj),
+            'dependent_objects': dependent_objects,
             **self.get_extra_context(request, obj),
         })
 
@@ -374,8 +400,8 @@ class ObjectDeleteView(GetReturnURLMixin, BaseObjectView):
             try:
                 obj.delete()
 
-            except ProtectedError as e:
+            except (ProtectedError, RestrictedError) as e:
-                logger.info("Caught ProtectedError while attempting to delete object")
+                logger.info(f"Caught {type(e)} while attempting to delete objects")
                 handle_protectederror([obj], request, e)
                 return redirect(obj.get_absolute_url())
 

netbox/templates/circuits/circuittype.html

@@ -29,6 +29,16 @@
             <th scope="row">{% trans "Description" %}</th>
             <td>{{ object.description|placeholder }}</td>
           </tr>
+          <tr>
+            <th scope="row">{% trans "Color" %}</th>
+            <td>
+              {% if object.color %}
+                <span class="badge color-label" style="background-color: #{{ object.color }}">&nbsp;</span>
+              {% else %}
+                {{ ''|placeholder }}
+              {% endif %}
+            </td>
+          </tr>
         </table>
       </div>
     </div>

netbox/templates/core/datasource.html

@@ -58,7 +58,7 @@
             <tr>
               <th scope="row">{% trans "URL" %}</th>
               <td>
-                {% if not object.is_local %}
+                {% if not object.type.is_local %}
                   <a href="{{ object.source_url }}">{{ object.source_url }}</a>
                 {% else %}
                   {{ object.source_url }}

netbox/templates/core/job.html

@@ -35,6 +35,12 @@
               <th scope="row">{% trans "Status" %}</th>
               <td>{% badge object.get_status_display object.get_status_color %}</td>
             </tr>
+            {% if object.error %}
+              <tr>
+                <th scope="row">{% trans "Error" %}</th>
+                <td>{{ object.error }}</td>
+              </tr>
+            {% endif %}
             <tr>
               <th scope="row">{% trans "Created By" %}</th>
               <td>{{ object.user|placeholder }}</td>

netbox/templates/dcim/devicebay_delete.html

@@ -8,8 +8,8 @@
 
 {% block message %}
   <p>
-    {% blocktrans trimmed %}
+    {% blocktrans trimmed with device=devicebay.device %}
-      Are you sure you want to delete this device bay from <strong>{{ devicebay.device }}</strong>?
+      Are you sure you want to delete this device bay from <strong>{{ device }}</strong>?
     {% endblocktrans %}
   </p>
 {% endblock %}

netbox/templates/dcim/devicetype.html

@@ -40,6 +40,10 @@
                             <td>{% trans "Height (U" %})</td>
                             <td>{{ object.u_height|floatformat }}</td>
                         </tr>
+                        <tr>
+                            <td>{% trans "Exclude From Utilization" %})</td>
+                            <td>{% checkmark object.exclude_from_utilization %}</td>
+                        </tr>
                         <tr>
                             <td>{% trans "Full Depth" %}</td>
                             <td>{% checkmark object.is_full_depth %}</td>

netbox/templates/extras/configrevision.html

@@ -151,6 +151,10 @@
               <th scope="row">{% trans "Custom validators" %}</th>
               <td>{{ object.data.CUSTOM_VALIDATORS|placeholder }}</td>
             </tr>
+            <tr>
+              <th scope="row">{% trans "Protection rules" %}</th>
+              <td>{{ object.data.PROTECTION_RULES|placeholder }}</td>
+            </tr>
           </table>
         </div>
       </div>

netbox/templates/htmx/delete_form.html

@@ -12,6 +12,40 @@
         Are you sure you want to <strong class="text-danger">delete</strong> {{ object_type }} <strong>{{ object }}</strong>?
       {% endblocktrans %}
     </p>
+    {% if dependent_objects %}
+      <p>
+        {% trans "The following objects will be deleted as a result of this action." %}
+      </p>
+      <div class="accordion" id="deleteAccordion">
+        {% for model, instances in dependent_objects.items %}
+          <div class="accordion-item">
+            <h2 class="accordion-header" id="deleteheading{{ forloop.counter }}">
+              <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapse{{ forloop.counter }}" aria-expanded="false" aria-controls="collapse{{ forloop.counter }}">
+                {% with object_count=instances|length %}
+                  {{ object_count }}
+                  {% if object_count == 1 %}
+                    {{ model|meta:"verbose_name" }}
+                  {% else %}
+                    {{ model|meta:"verbose_name_plural" }}
+                  {% endif %}
+                {% endwith %}
+              </button>
+            </h2>
+            <div id="collapse{{ forloop.counter }}" class="accordion-collapse collapse" aria-labelledby="deleteheading{{ forloop.counter }}" data-bs-parent="#deleteAccordion">
+              <div class="accordion-body p-0">
+                <div class="list-group list-group-flush">
+                  {% for instance in instances %}
+                    {% with url=instance.get_absolute_url %}
+                      <a {% if url %}href="{{ url }}" {% endif %}class="list-group-item list-group-item-action">{{ instance }}</a>
+                    {% endwith %}
+                  {% endfor %}
+                </div>
+              </div>
+            </div>
+          </div>
+        {% endfor %}
+      </div>
+    {% endif %}
     {% render_form form %}
   </div>
   <div class="modal-footer">

netbox/users/forms/model_forms.py

@@ -386,5 +386,5 @@ class ObjectPermissionForm(BootstrapMixin, forms.ModelForm):
                     model.objects.filter(qs_filter_from_constraints(constraints, tokens)).exists()
                 except FieldError as e:
                     raise forms.ValidationError({
-                        'constraints': _('Invalid filter for {model}: {e}').format(model=model, e=e)
+                        'constraints': _('Invalid filter for {model}: {error}').format(model=model, error=e)
                     })

netbox/users/models.py

@@ -169,7 +169,7 @@ class UserConfig(models.Model):
             elif key in d:
                 err_path = '.'.join(path.split('.')[:i + 1])
                 raise TypeError(
-                    _("Key '{err_path}' is a leaf node; cannot assign new keys").format(err_path=err_path)
+                    _("Key '{path}' is a leaf node; cannot assign new keys").format(path=err_path)
                 )
             else:
                 d = d.setdefault(key, {})

netbox/utilities/error_handlers.py

@@ -1,16 +1,26 @@
 from django.contrib import messages
+from django.db.models import ProtectedError, RestrictedError
 from django.utils.html import escape
 from django.utils.safestring import mark_safe
+from django.utils.translation import gettext_lazy as _
 
 
 def handle_protectederror(obj_list, request, e):
     """
-    Generate a user-friendly error message in response to a ProtectedError exception.
+    Generate a user-friendly error message in response to a ProtectedError or RestrictedError exception.
     """
+    if type(e) is ProtectedError:
         protected_objects = list(e.protected_objects)
-    protected_count = len(protected_objects) if len(protected_objects) <= 50 else 'More than 50'
+    elif type(e) is RestrictedError:
-    err_message = f"Unable to delete <strong>{', '.join(str(obj) for obj in obj_list)}</strong>. " \
+        protected_objects = list(e.restricted_objects)
-                  f"{protected_count} dependent objects were found: "
+    else:
+        raise e
+
+    # Formulate the error message
+    err_message = _("Unable to delete <strong>{objects}</strong>. {count} dependent objects were found: ").format(
+        objects=', '.join(str(obj) for obj in obj_list),
+        count=len(protected_objects) if len(protected_objects) <= 50 else _('More than 50')
+    )
 
     # Append dependent objects to error message
     dependent_objects = []

netbox/virtualization/api/views.py

@@ -4,6 +4,7 @@ from dcim.models import Device
 from django.db.models import Sum
 from extras.api.mixins import ConfigContextQuerySetMixin
 from netbox.api.viewsets import NetBoxModelViewSet
+from utilities.query_functions import CollateAsChar
 from utilities.utils import count_related
 from virtualization import filtersets
 from virtualization.models import *
@@ -89,6 +90,10 @@ class VMInterfaceViewSet(NetBoxModelViewSet):
     filterset_class = filtersets.VMInterfaceFilterSet
     brief_prefetch_fields = ['virtual_machine']
 
+    def get_bulk_destroy_queryset(self):
+        # Ensure child interfaces are deleted prior to their parents
+        return self.get_queryset().order_by('virtual_machine', 'parent', CollateAsChar('_name'))
+
 
 class VirtualDiskViewSet(NetBoxModelViewSet):
     queryset = VirtualDisk.objects.prefetch_related(

netbox/virtualization/forms/model_forms.py

@@ -152,8 +152,12 @@ class ClusterAddDevicesForm(BootstrapMixin, forms.Form):
             for device in self.cleaned_data.get('devices', []):
                 if device.site != self.cluster.site:
                     raise ValidationError({
-                        'devices': _("{} belongs to a different site ({}) than the cluster ({})").format(
+                        'devices': _(
-                            device, device.site, self.cluster.site
+                            "{device} belongs to a different site ({device_site}) than the cluster ({cluster_site})"
+                        ).format(
+                            device=device,
+                            device_site=device.site,
+                            cluster_site=self.cluster.site
                         )
                     })
 

netbox/virtualization/migrations/0037_protect_child_interfaces.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.6 on 2023-10-20 11:48
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('virtualization', '0036_virtualmachine_config_template'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='vminterface',
+            name='parent',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.RESTRICT, related_name='child_interfaces', to='virtualization.vminterface'),
+        ),
+    ]

netbox/virtualization/migrations/0038_virtualmachine_virtual_disk_count_virtualdisk_and_more.py

@@ -13,7 +13,7 @@ import utilities.tracking
 class Migration(migrations.Migration):
     dependencies = [
         ('extras', '0098_webhook_custom_field_data_webhook_tags'),
-        ('virtualization', '0036_virtualmachine_config_template'),
+        ('virtualization', '0037_protect_child_interfaces'),
     ]
 
     operations = [

netbox/virtualization/models/clusters.py

@@ -135,10 +135,9 @@ class Cluster(ContactsMixin, PrimaryModel):
 
         # If the Cluster is assigned to a Site, verify that all host Devices belong to that Site.
         if self.pk and self.site:
-            nonsite_devices = Device.objects.filter(cluster=self).exclude(site=self.site).count()
+            if nonsite_devices := Device.objects.filter(cluster=self).exclude(site=self.site).count():
-            if nonsite_devices:
                 raise ValidationError({
-                    'site': _("{} devices are assigned as hosts for this cluster but are not in site {}").format(
+                    'site': _(
-                        nonsite_devices, self.site
+                        "{count} devices are assigned as hosts for this cluster but are not in site {site}"
-                    )
+                    ).format(count=nonsite_devices, site=self.site)
                 })

netbox/virtualization/tests/test_api.py

@@ -294,6 +294,32 @@ class VMInterfaceTest(APIViewTestCases.APIViewTestCase):
             },
         ]
 
+    def test_bulk_delete_child_interfaces(self):
+        interface1 = VMInterface.objects.get(name='Interface 1')
+        virtual_machine = interface1.virtual_machine
+        self.add_permissions('virtualization.delete_vminterface')
+
+        # Create a child interface
+        child = VMInterface.objects.create(
+            virtual_machine=virtual_machine,
+            name='Interface 1A',
+            parent=interface1
+        )
+        self.assertEqual(virtual_machine.interfaces.count(), 4)
+
+        # Attempt to delete only the parent interface
+        url = self._get_detail_url(interface1)
+        self.client.delete(url, **self.header)
+        self.assertEqual(virtual_machine.interfaces.count(), 4)  # Parent was not deleted
+
+        # Attempt to bulk delete parent & child together
+        data = [
+            {"id": interface1.pk},
+            {"id": child.pk},
+        ]
+        self.client.delete(self._get_list_url(), data, format='json', **self.header)
+        self.assertEqual(virtual_machine.interfaces.count(), 2)  # Child & parent were both deleted
+
 
 class VirtualDiskTest(APIViewTestCases.APIViewTestCase):
     model = VirtualDisk

netbox/virtualization/tests/test_views.py

@@ -375,6 +375,35 @@ class VMInterfaceTestCase(ViewTestCases.DeviceComponentViewTestCase):
             'tagged_vlans': [v.pk for v in vlans[1:4]],
         }
 
+    def test_bulk_delete_child_interfaces(self):
+        interface1 = VMInterface.objects.get(name='Interface 1')
+        virtual_machine = interface1.virtual_machine
+        self.add_permissions('virtualization.delete_vminterface')
+
+        # Create a child interface
+        child = VMInterface.objects.create(
+            virtual_machine=virtual_machine,
+            name='Interface 1A',
+            parent=interface1
+        )
+        self.assertEqual(virtual_machine.interfaces.count(), 4)
+
+        # Attempt to delete only the parent interface
+        data = {
+            'confirm': True,
+        }
+        self.client.post(self._get_url('delete', interface1), data)
+        self.assertEqual(virtual_machine.interfaces.count(), 4)  # Parent was not deleted
+
+        # Attempt to bulk delete parent & child together
+        data = {
+            'pk': [interface1.pk, child.pk],
+            'confirm': True,
+            '_confirm': True,  # Form button
+        }
+        self.client.post(self._get_url('bulk_delete'), data)
+        self.assertEqual(virtual_machine.interfaces.count(), 2)  # Child & parent were both deleted
+
 
 class VirtualDiskTestCase(ViewTestCases.DeviceComponentViewTestCase):
     model = VirtualDisk

netbox/virtualization/views.py

@@ -1,5 +1,4 @@
 import traceback
-from collections import defaultdict
 
 from django.contrib import messages
 from django.db import transaction
@@ -19,6 +18,7 @@ from ipam.tables import InterfaceVLANTable
 from netbox.constants import DEFAULT_ACTION_PERMISSIONS
 from netbox.views import generic
 from tenancy.views import ObjectContactsView
+from utilities.query_functions import CollateAsChar
 from utilities.utils import count_related
 from utilities.views import ViewTab, register_model_view
 from . import filtersets, forms, tables
@@ -575,7 +575,8 @@ class VMInterfaceBulkRenameView(generic.BulkRenameView):
 
 
 class VMInterfaceBulkDeleteView(generic.BulkDeleteView):
-    queryset = VMInterface.objects.all()
+    # Ensure child interfaces are deleted prior to their parents
+    queryset = VMInterface.objects.order_by('virtual_machine', 'parent', CollateAsChar('_name'))
     filterset = filtersets.VMInterfaceFilterSet
     table = tables.VMInterfaceTable
 

netbox/wireless/models.py

@@ -213,14 +213,14 @@ class WirelessLink(WirelessAuthenticationBase, PrimaryModel):
         if self.interface_a.type not in WIRELESS_IFACE_TYPES:
             raise ValidationError({
                 'interface_a': _(
-                    "{type_display} is not a wireless interface."
+                    "{type} is not a wireless interface."
-                ).format(type_display=self.interface_a.get_type_display())
+                ).format(type=self.interface_a.get_type_display())
             })
         if self.interface_b.type not in WIRELESS_IFACE_TYPES:
             raise ValidationError({
                 'interface_a': _(
-                    "{type_display} is not a wireless interface."
+                    "{type} is not a wireless interface."
-                ).format(type_display=self.interface_b.get_type_display())
+                ).format(type=self.interface_b.get_type_display())
             })
 
     def save(self, *args, **kwargs):