Closes #13086: Virtual circuits (#17933)

* WIP

* Add API tests

* Add remaining tests

* Add model docs

* Show virtual circuit connections on interfaces

* Misc cleanup per PR feedback

* Renumber migration

* Support nested terminations for virtual circuit bulk import

netbox/circuits/tables/__init__.py

@@ -1,3 +1,4 @@
 from .circuits import *
 from .columns import *
 from .providers import *
+from .virtual_circuits import *

netbox/circuits/tables/virtual_circuits.py

@@ -0,0 +1,95 @@
+import django_tables2 as tables
+from django.utils.translation import gettext_lazy as _
+
+from circuits.models import *
+from netbox.tables import NetBoxTable, columns
+from tenancy.tables import ContactsColumnMixin, TenancyColumnsMixin
+
+__all__ = (
+    'VirtualCircuitTable',
+    'VirtualCircuitTerminationTable',
+)
+
+
+class VirtualCircuitTable(TenancyColumnsMixin, ContactsColumnMixin, NetBoxTable):
+    cid = tables.Column(
+        linkify=True,
+        verbose_name=_('Circuit ID')
+    )
+    provider = tables.Column(
+        accessor=tables.A('provider_network__provider'),
+        verbose_name=_('Provider'),
+        linkify=True
+    )
+    provider_network = tables.Column(
+        linkify=True,
+        verbose_name=_('Provider network')
+    )
+    provider_account = tables.Column(
+        linkify=True,
+        verbose_name=_('Account')
+    )
+    status = columns.ChoiceFieldColumn()
+    termination_count = columns.LinkedCountColumn(
+        viewname='circuits:virtualcircuittermination_list',
+        url_params={'virtual_circuit_id': 'pk'},
+        verbose_name=_('Terminations')
+    )
+    comments = columns.MarkdownColumn(
+        verbose_name=_('Comments')
+    )
+    tags = columns.TagColumn(
+        url_name='circuits:virtualcircuit_list'
+    )
+
+    class Meta(NetBoxTable.Meta):
+        model = VirtualCircuit
+        fields = (
+            'pk', 'id', 'cid', 'provider', 'provider_account', 'provider_network', 'status', 'tenant', 'tenant_group',
+            'description', 'comments', 'tags', 'created', 'last_updated',
+        )
+        default_columns = (
+            'pk', 'cid', 'provider', 'provider_account', 'provider_network', 'status', 'tenant', 'termination_count',
+            'description',
+        )
+
+
+class VirtualCircuitTerminationTable(NetBoxTable):
+    virtual_circuit = tables.Column(
+        verbose_name=_('Virtual circuit'),
+        linkify=True
+    )
+    provider = tables.Column(
+        accessor=tables.A('virtual_circuit__provider_network__provider'),
+        verbose_name=_('Provider'),
+        linkify=True
+    )
+    provider_network = tables.Column(
+        accessor=tables.A('virtual_circuit__provider_network'),
+        linkify=True,
+        verbose_name=_('Provider network')
+    )
+    provider_account = tables.Column(
+        linkify=True,
+        verbose_name=_('Account')
+    )
+    role = columns.ChoiceFieldColumn()
+    device = tables.Column(
+        accessor=tables.A('interface__device'),
+        linkify=True,
+        verbose_name=_('Device')
+    )
+    interface = tables.Column(
+        verbose_name=_('Interface'),
+        linkify=True
+    )
+
+    class Meta(NetBoxTable.Meta):
+        model = VirtualCircuitTermination
+        fields = (
+            'pk', 'id', 'virtual_circuit', 'provider', 'provider_network', 'provider_account', 'role', 'interfaces',
+            'description', 'created', 'last_updated', 'actions',
+        )
+        default_columns = (
+            'pk', 'id', 'virtual_circuit', 'role', 'device', 'interface', 'description',
+        )