Mirror device cabling 1:1 (per-type tabs) and copy cables on rack import

- Split the device detail page's single "Components" table into the
  same seven tabs a real dcim.Device has, in the same order: Console
  Ports, Console Server Ports, Power Ports, Power Outlets, Interfaces,
  Front Ports, Rear Ports. Each tab is its own ObjectChildrenView
  filtered by component_type (one ConceptComponent model backs all of
  them, so this only needed the view/URL layer, not a schema change),
  hidden when empty, exactly like core NetBox. Replace the ad hoc "Add
  component" button with the same "Add Components" dropdown real
  device pages use, one entry per type, each landing back on its own
  tab.
- When copying a real rack into a concept (or merging two real racks
  into one), automatically sync every copied device's components and
  recreate, as ConceptCables, every real cable whose both ends land on
  one of those devices - reading the same CableTermination data dcim
  itself uses, so the copy comes out cabled internally the same as the
  source. Cables reaching outside the copied rack(s), or multi-
  termination trunk cables, are skipped and reported as a count in the
  success message - the other end isn't part of the concept, so it
  can't be represented. copy_rack_to_concept() and
  merge_racks_to_concept() now return an extra cable_summary value;
  updated all their callers (views and API).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

netbox_rack_concept/__init__.py

@@ -5,10 +5,10 @@ __version__ = '0.1.0'
 
 class RackConceptConfig(PluginConfig):
     name = 'netbox_rack_concept'
-    verbose_name = 'Rack Concepts'
+    verbose_name = 'NetBox Rack Concepts'
     description = 'Rack blueprints: plan racks and their equipment without creating real racks or devices'
     version = __version__
-    author = 'Louis'
+    author = 'Claude'
     base_url = 'rack-concepts'
     min_version = '4.6.0'
     max_version = '4.6.99'

netbox_rack_concept/api/views.py

@@ -41,7 +41,7 @@ class RackConceptViewSet(NetBoxModelViewSet):
         tenant = data.get('tenant')
 
         try:
-            concept, warnings = deploy_utils.copy_rack_to_concept(
+            concept, warnings, cable_summary = deploy_utils.copy_rack_to_concept(
                 rack=rack,
                 name=data['name'],
                 status=data['status'],
@@ -60,6 +60,7 @@ class RackConceptViewSet(NetBoxModelViewSet):
 
         result = RackConceptSerializer(concept, context={'request': request}).data
         result['warnings'] = warnings
+        result['cables'] = cable_summary
         return Response(result, status=status.HTTP_201_CREATED)
 
     @action(detail=True, methods=['post'])

netbox_rack_concept/components.py

@@ -9,12 +9,26 @@ that's what its device type's templates already describe - the same as a real de
 Placeholder devices without a device type have no templates to sync from; their
 components, if any, have to be added by hand.
 """
+from django.core.exceptions import ValidationError
 from django.db import transaction
 
-from .choices import ConceptComponentTypeChoices
-from .models import ConceptComponent, ConceptPortMapping
+from dcim.models import Cable, ConsolePort, ConsoleServerPort, FrontPort, Interface, PowerOutlet, PowerPort, RearPort
 
-__all__ = ('sync_components',)
+from .choices import ConceptComponentTypeChoices
+from .models import ConceptCable, ConceptComponent, ConceptPortMapping
+
+__all__ = ('copy_cables', 'sync_components')
+
+# (our component type, the real dcim model that can terminate a real cable)
+CABLED_MODELS = (
+    (ConceptComponentTypeChoices.TYPE_INTERFACE, Interface),
+    (ConceptComponentTypeChoices.TYPE_CONSOLE_PORT, ConsolePort),
+    (ConceptComponentTypeChoices.TYPE_CONSOLE_SERVER_PORT, ConsoleServerPort),
+    (ConceptComponentTypeChoices.TYPE_POWER_PORT, PowerPort),
+    (ConceptComponentTypeChoices.TYPE_POWER_OUTLET, PowerOutlet),
+    (ConceptComponentTypeChoices.TYPE_FRONT_PORT, FrontPort),
+    (ConceptComponentTypeChoices.TYPE_REAR_PORT, RearPort),
+)
 
 # (our component type, DeviceType's reverse accessor for that template queryset)
 TEMPLATE_SOURCES = (
@@ -77,3 +91,73 @@ def sync_components(concept_device):
             mappings_created += 1
 
     return created, mappings_created
+
+
+@transaction.atomic
+def copy_cables(concept_devices):
+    """
+    Recreate, as ConceptCables, every real cable whose both ends sit on one of the
+    given concept devices' source devices (i.e. cables internal to whatever rack(s)
+    were just imported). A cable reaching a device outside that set can't be
+    represented here - the other end isn't part of the concept - and is skipped, along
+    with any multi-termination trunk cable, which ConceptCable's plain point-to-point
+    model can't hold. Only devices whose components have already been synced (see
+    sync_components) can have their cables copied.
+    Returns (copied, skipped).
+    """
+    device_map = {cd.source_device_id: cd for cd in concept_devices if cd.source_device_id}
+    if not device_map:
+        return 0, 0
+    device_ids = set(device_map)
+
+    component_lookup = {}
+    for component in ConceptComponent.objects.filter(device__in=device_map.values()).select_related('device'):
+        component_lookup[(component.device.source_device_id, component.name)] = component
+
+    cable_ids = set()
+    for _, model in CABLED_MODELS:
+        cable_ids.update(
+            model.objects.filter(device_id__in=device_ids, cable_id__isnull=False)
+            .values_list('cable_id', flat=True)
+        )
+
+    copied = skipped = 0
+    for cable in Cable.objects.filter(pk__in=cable_ids).prefetch_related('terminations'):
+        a_ends = [ct.termination for ct in cable.terminations.all() if ct.cable_end == 'A']
+        b_ends = [ct.termination for ct in cable.terminations.all() if ct.cable_end == 'B']
+        if len(a_ends) != 1 or len(b_ends) != 1:
+            # A multi-termination trunk cable - not something a point-to-point
+            # ConceptCable can represent.
+            skipped += 1
+            continue
+
+        a, b = a_ends[0], b_ends[0]
+        a_device_id, b_device_id = getattr(a, 'device_id', None), getattr(b, 'device_id', None)
+        if a_device_id not in device_ids or b_device_id not in device_ids:
+            # Reaches a device outside the set being copied.
+            skipped += 1
+            continue
+
+        component_a = component_lookup.get((a_device_id, a.name))
+        component_b = component_lookup.get((b_device_id, b.name))
+        if not (component_a and component_b):
+            skipped += 1
+            continue
+
+        concept_cable = ConceptCable(
+            termination_a=component_a,
+            termination_b=component_b,
+            status=cable.status,
+            type=cable.type or '',
+            color=cable.color or '',
+            label=cable.label,
+        )
+        try:
+            concept_cable.full_clean()
+        except ValidationError:
+            skipped += 1
+            continue
+        concept_cable.save()
+        copied += 1
+
+    return copied, skipped

netbox_rack_concept/deploy.py

@@ -10,6 +10,7 @@ from django.utils.translation import gettext as _
 from dcim.choices import RackWidthChoices
 from dcim.models import Device, Rack
 
+from . import components
 from .choices import ConceptDeviceStatusChoices, ConceptStatusChoices
 from .integrations import apply_partial_width, read_partial_width
 from .models import ConceptDeployment, ConceptDevice, RackConcept
@@ -54,7 +55,12 @@ def copy_rack_to_concept(rack, name, status=ConceptStatusChoices.STATUS_DRAFT, t
     override lets the concept end up a different size than the source rack (e.g. to
     plan "what if we had a taller one"); devices that no longer fit are skipped and
     reported back as warnings rather than aborting the whole copy.
-    Returns (concept, warnings).
+
+    Copied devices also get their components synced from their device type, and any
+    cable between two of them is recreated as a ConceptCable - so the copy is cabled
+    exactly like the source rack wherever both ends of a cable stayed inside it.
+    Returns (concept, warnings, cable_summary), where cable_summary is
+    {'copied': int, 'skipped': int}.
     """
     concept = RackConcept(
         name=name,
@@ -90,10 +96,12 @@ def copy_rack_to_concept(rack, name, status=ConceptStatusChoices.STATUS_DRAFT, t
     concept.save()
 
     warnings = []
+    cable_summary = {'copied': 0, 'skipped': 0}
     if include_devices:
         devices = Device.objects.filter(rack=rack, position__isnull=False).select_related(
             'device_type', 'role', 'platform', 'tenant'
         )
+        new_devices = []
         for device in devices:
             fraction, horizontal = read_partial_width(device)
             concept_device = ConceptDevice(
@@ -120,8 +128,15 @@ def copy_rack_to_concept(rack, name, status=ConceptStatusChoices.STATUS_DRAFT, t
                     ) % {'device': device, 'position': device.position})
                     continue
             concept_device.save()
+            new_devices.append(concept_device)
 
-    return concept, warnings
+        # Recreate each device's components from its device type, then wire up
+        # whichever cables stayed entirely inside the rack being copied.
+        for concept_device in new_devices:
+            components.sync_components(concept_device)
+        cable_summary['copied'], cable_summary['skipped'] = components.copy_cables(new_devices)
+
+    return concept, warnings, cable_summary
 
 
 #
@@ -209,7 +224,12 @@ def merge_racks_to_concept(rack_bottom, rack_top, name, status=ConceptStatusChoi
     Combine two real racks directly into one new, taller blueprint - e.g. two
     half-height racks planned as one full-height rack. rack_bottom's devices keep their
     position; rack_top's are shifted up by rack_bottom's height. Neither source rack is
-    modified. Returns (concept, warnings).
+    modified.
+
+    Copied devices also get their components synced from their device type, and any
+    cable between two of them (from either rack) is recreated as a ConceptCable.
+    Returns (concept, warnings, cable_summary), where cable_summary is
+    {'copied': int, 'skipped': int}.
     """
     bottom_height = _rack_geometry(rack_bottom, 'u_height') or rack_bottom.u_height
     top_height = _rack_geometry(rack_top, 'u_height') or rack_top.u_height
@@ -235,6 +255,7 @@ def merge_racks_to_concept(rack_bottom, rack_top, name, status=ConceptStatusChoi
     concept.save()
 
     warnings = []
+    new_devices = []
 
     def _copy_from_rack(rack, shift):
         if not include_devices:
@@ -267,11 +288,17 @@ def merge_racks_to_concept(rack_bottom, rack_top, name, status=ConceptStatusChoi
                 ) % {'device': device, 'rack': rack})
                 continue
             concept_device.save()
+            new_devices.append(concept_device)
 
     _copy_from_rack(rack_bottom, 0)
     _copy_from_rack(rack_top, bottom_height)
 
-    return concept, warnings
+    for concept_device in new_devices:
+        components.sync_components(concept_device)
+    cable_summary = {'copied': 0, 'skipped': 0}
+    cable_summary['copied'], cable_summary['skipped'] = components.copy_cables(new_devices)
+
+    return concept, warnings, cable_summary
 
 
 #

netbox_rack_concept/templates/netbox_rack_concept/conceptdevice.html

@@ -1,7 +1,6 @@
 {% extends 'generic/object.html' %}
 {% load i18n %}
 {% load helpers %}
-{% load render_table from django_tables2 %}
 
 {% block extra_controls %}
   {{ block.super }}
@@ -10,6 +9,22 @@
       <i class="mdi mdi-sync"></i> {% trans "Sync components" %}
     </a>
   {% endif %}
+  {% if perms.netbox_rack_concept.add_conceptcomponent %}
+    <div class="dropdown">
+      <button id="add-components" type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
+        <i class="mdi mdi-plus-thick" aria-hidden="true"></i> {% trans "Add Components" %}
+      </button>
+      <ul class="dropdown-menu" aria-labelledby="add-components">
+        <li><a class="dropdown-item" href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type=console-port&amp;return_url={% url 'plugins:netbox_rack_concept:conceptdevice_consoleports' pk=object.pk %}">{% trans "Console Ports" %}</a></li>
+        <li><a class="dropdown-item" href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type=console-server-port&amp;return_url={% url 'plugins:netbox_rack_concept:conceptdevice_consoleserverports' pk=object.pk %}">{% trans "Console Server Ports" %}</a></li>
+        <li><a class="dropdown-item" href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type=power-port&amp;return_url={% url 'plugins:netbox_rack_concept:conceptdevice_powerports' pk=object.pk %}">{% trans "Power Ports" %}</a></li>
+        <li><a class="dropdown-item" href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type=power-outlet&amp;return_url={% url 'plugins:netbox_rack_concept:conceptdevice_poweroutlets' pk=object.pk %}">{% trans "Power Outlets" %}</a></li>
+        <li><a class="dropdown-item" href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type=interface&amp;return_url={% url 'plugins:netbox_rack_concept:conceptdevice_interfaces' pk=object.pk %}">{% trans "Interfaces" %}</a></li>
+        <li><a class="dropdown-item" href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type=front-port&amp;return_url={% url 'plugins:netbox_rack_concept:conceptdevice_frontports' pk=object.pk %}">{% trans "Front Ports" %}</a></li>
+        <li><a class="dropdown-item" href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type=rear-port&amp;return_url={% url 'plugins:netbox_rack_concept:conceptdevice_rearports' pk=object.pk %}">{% trans "Rear Ports" %}</a></li>
+      </ul>
+    </div>
+  {% endif %}
 {% endblock %}
 
 {% block content %}
@@ -109,21 +124,4 @@
     </div>
   </div>
 </div>
-
-<div class="row mb-3">
-  <div class="col col-md-12">
-    <div class="card">
-      <h2 class="card-header">
-        {% trans "Components" %}
-        {% if perms.netbox_rack_concept.add_conceptcomponent %}
-          <a href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}"
-             class="btn btn-sm btn-primary float-end">
-            <i class="mdi mdi-plus-thick"></i> {% trans "Add component" %}
-          </a>
-        {% endif %}
-      </h2>
-      {% render_table component_table %}
-    </div>
-  </div>
-</div>
 {% endblock %}

netbox_rack_concept/templates/netbox_rack_concept/conceptdevice_components.html

@@ -0,0 +1,12 @@
+{% extends 'generic/object_children.html' %}
+{% load i18n %}
+
+{% block bulk_extra_controls %}
+  {{ block.super }}
+  {% if perms.netbox_rack_concept.add_conceptcomponent %}
+    <a href="{% url 'plugins:netbox_rack_concept:conceptcomponent_add' %}?device={{ object.pk }}&amp;component_type={{ component_type }}&amp;return_url={{ request.path }}"
+       class="btn btn-primary">
+      <i class="mdi mdi-plus-thick"></i> {% blocktrans %}Add {{ component_type_label }}{% endblocktrans %}
+    </a>
+  {% endif %}
+{% endblock %}

netbox_rack_concept/views.py

@@ -17,6 +17,7 @@ from netbox.views import generic
 from utilities.views import ObjectPermissionRequiredMixin, ViewTab, register_model_view
 
 from . import components, deploy, filtersets, forms, tables
+from .choices import ConceptComponentTypeChoices
 from .elevation import get_elevations
 from .models import ConceptCable, ConceptComponent, ConceptDevice, RackConcept
 
@@ -140,17 +141,6 @@ class ConceptDeviceView(generic.ObjectView):
     )
     template_name = 'netbox_rack_concept/conceptdevice.html'
 
-    def get_extra_context(self, request, instance):
-        component_table = tables.ConceptComponentTable(
-            instance.components.select_related('device').order_by('component_type', 'name'),
-            exclude=('device', 'concept'),
-            orderable=False,
-        )
-        component_table.configure(request)
-        return {
-            'component_table': component_table,
-        }
-
 
 @register_model_view(ConceptDevice, 'sync_components')
 class ConceptDeviceSyncComponentsView(ObjectPermissionRequiredMixin, View):
@@ -185,6 +175,129 @@ class ConceptDeviceSyncComponentsView(ObjectPermissionRequiredMixin, View):
         return redirect(device.get_absolute_url())
 
 
+class ConceptDeviceComponentsView(generic.ObjectChildrenView):
+    """
+    Base for the per-type component tabs (Interfaces / Front Ports / ...), mirroring
+    dcim's own device component tabs one-for-one: same names, paths and tab order.
+    Since one ConceptComponent model covers every type (see models.py), a subclass only
+    needs to say which component_type it shows - there's no separate model per tab to
+    plug in the way dcim.Interface/dcim.FrontPort/etc. do.
+    """
+    queryset = ConceptDevice.objects.all()
+    child_model = ConceptComponent
+    table = tables.ConceptComponentTable
+    filterset = filtersets.ConceptComponentFilterSet
+    filterset_form = forms.ConceptComponentFilterForm
+    template_name = 'netbox_rack_concept/conceptdevice_components.html'
+    component_type = None
+
+    def get_children(self, request, parent):
+        return ConceptComponent.objects.restrict(request.user, 'view').filter(
+            device=parent, component_type=self.component_type
+        )
+
+    def get_table(self, data, request, bulk_actions=True):
+        # device/concept/component_type are all implied by "which tab this is" - showing
+        # them again on every row would just be noise.
+        table = self.table(data, exclude=('device', 'concept', 'component_type'))
+        if 'pk' in table.base_columns and bulk_actions:
+            table.columns.show('pk')
+        table.configure(request)
+        return table
+
+    def get_extra_context(self, request, instance):
+        return {
+            'component_type': self.component_type,
+            'component_type_label': self.tab.label,
+        }
+
+
+@register_model_view(ConceptDevice, 'consoleports', path='console-ports')
+class ConceptDeviceConsolePortsView(ConceptDeviceComponentsView):
+    component_type = ConceptComponentTypeChoices.TYPE_CONSOLE_PORT
+    tab = ViewTab(
+        label=_('Console Ports'),
+        badge=lambda obj: obj.components.filter(component_type=ConceptComponentTypeChoices.TYPE_CONSOLE_PORT).count(),
+        permission='netbox_rack_concept.view_conceptcomponent',
+        weight=550,
+        hide_if_empty=True
+    )
+
+
+@register_model_view(ConceptDevice, 'consoleserverports', path='console-server-ports')
+class ConceptDeviceConsoleServerPortsView(ConceptDeviceComponentsView):
+    component_type = ConceptComponentTypeChoices.TYPE_CONSOLE_SERVER_PORT
+    tab = ViewTab(
+        label=_('Console Server Ports'),
+        badge=lambda obj: obj.components.filter(
+            component_type=ConceptComponentTypeChoices.TYPE_CONSOLE_SERVER_PORT
+        ).count(),
+        permission='netbox_rack_concept.view_conceptcomponent',
+        weight=560,
+        hide_if_empty=True
+    )
+
+
+@register_model_view(ConceptDevice, 'powerports', path='power-ports')
+class ConceptDevicePowerPortsView(ConceptDeviceComponentsView):
+    component_type = ConceptComponentTypeChoices.TYPE_POWER_PORT
+    tab = ViewTab(
+        label=_('Power Ports'),
+        badge=lambda obj: obj.components.filter(component_type=ConceptComponentTypeChoices.TYPE_POWER_PORT).count(),
+        permission='netbox_rack_concept.view_conceptcomponent',
+        weight=570,
+        hide_if_empty=True
+    )
+
+
+@register_model_view(ConceptDevice, 'poweroutlets', path='power-outlets')
+class ConceptDevicePowerOutletsView(ConceptDeviceComponentsView):
+    component_type = ConceptComponentTypeChoices.TYPE_POWER_OUTLET
+    tab = ViewTab(
+        label=_('Power Outlets'),
+        badge=lambda obj: obj.components.filter(component_type=ConceptComponentTypeChoices.TYPE_POWER_OUTLET).count(),
+        permission='netbox_rack_concept.view_conceptcomponent',
+        weight=580,
+        hide_if_empty=True
+    )
+
+
+@register_model_view(ConceptDevice, 'interfaces')
+class ConceptDeviceInterfacesView(ConceptDeviceComponentsView):
+    component_type = ConceptComponentTypeChoices.TYPE_INTERFACE
+    tab = ViewTab(
+        label=_('Interfaces'),
+        badge=lambda obj: obj.components.filter(component_type=ConceptComponentTypeChoices.TYPE_INTERFACE).count(),
+        permission='netbox_rack_concept.view_conceptcomponent',
+        weight=520,
+        hide_if_empty=True
+    )
+
+
+@register_model_view(ConceptDevice, 'frontports', path='front-ports')
+class ConceptDeviceFrontPortsView(ConceptDeviceComponentsView):
+    component_type = ConceptComponentTypeChoices.TYPE_FRONT_PORT
+    tab = ViewTab(
+        label=_('Front Ports'),
+        badge=lambda obj: obj.components.filter(component_type=ConceptComponentTypeChoices.TYPE_FRONT_PORT).count(),
+        permission='netbox_rack_concept.view_conceptcomponent',
+        weight=530,
+        hide_if_empty=True
+    )
+
+
+@register_model_view(ConceptDevice, 'rearports', path='rear-ports')
+class ConceptDeviceRearPortsView(ConceptDeviceComponentsView):
+    component_type = ConceptComponentTypeChoices.TYPE_REAR_PORT
+    tab = ViewTab(
+        label=_('Rear Ports'),
+        badge=lambda obj: obj.components.filter(component_type=ConceptComponentTypeChoices.TYPE_REAR_PORT).count(),
+        permission='netbox_rack_concept.view_conceptcomponent',
+        weight=540,
+        hide_if_empty=True
+    )
+
+
 @register_model_view(ConceptDevice, 'add', detail=False)
 @register_model_view(ConceptDevice, 'edit')
 class ConceptDeviceEditView(generic.ObjectEditView):
@@ -249,7 +362,7 @@ class RackCopyView(ObjectPermissionRequiredMixin, View):
 
         if form.is_valid():
             try:
-                concept, warnings = deploy.copy_rack_to_concept(
+                concept, warnings, cable_summary = deploy.copy_rack_to_concept(
                     rack=rack,
                     name=form.cleaned_data['name'],
                     status=form.cleaned_data['status'],
@@ -267,9 +380,17 @@ class RackCopyView(ObjectPermissionRequiredMixin, View):
             else:
                 for warning in warnings:
                     messages.warning(request, warning)
-                messages.success(request, _('Created concept %(concept)s from rack %(rack)s.') % {
+                if cable_summary['skipped']:
+                    messages.warning(request, _(
+                        '%(count)s cable(s) could not be copied because they reach outside the rack or use more '
+                        'than one termination per side.'
+                    ) % {'count': cable_summary['skipped']})
+                success_message = _('Created concept %(concept)s from rack %(rack)s.') % {
                     'concept': concept, 'rack': rack
-                })
+                }
+                if cable_summary['copied']:
+                    success_message += ' ' + _('Copied %(count)s cable(s).') % {'count': cable_summary['copied']}
+                messages.success(request, success_message)
                 return redirect(concept.get_absolute_url())
 
         return render(request, 'netbox_rack_concept/rack_copy.html', {
@@ -354,7 +475,7 @@ class MergeRacksToConceptView(ObjectPermissionRequiredMixin, View):
 
         if form.is_valid():
             try:
-                concept, warnings = deploy.merge_racks_to_concept(
+                concept, warnings, cable_summary = deploy.merge_racks_to_concept(
                     rack_bottom=form.cleaned_data['rack_bottom'],
                     rack_top=form.cleaned_data['rack_top'],
                     name=form.cleaned_data['name'],
@@ -373,11 +494,19 @@ class MergeRacksToConceptView(ObjectPermissionRequiredMixin, View):
             else:
                 for warning in warnings:
                     messages.warning(request, warning)
-                messages.success(request, _('Created concept %(concept)s from %(bottom)s and %(top)s.') % {
+                if cable_summary['skipped']:
+                    messages.warning(request, _(
+                        '%(count)s cable(s) could not be copied because they reach outside the two racks or use '
+                        'more than one termination per side.'
+                    ) % {'count': cable_summary['skipped']})
+                success_message = _('Created concept %(concept)s from %(bottom)s and %(top)s.') % {
                     'concept': concept,
                     'bottom': form.cleaned_data['rack_bottom'],
                     'top': form.cleaned_data['rack_top'],
-                })
+                }
+                if cable_summary['copied']:
+                    success_message += ' ' + _('Copied %(count)s cable(s).') % {'count': cable_summary['copied']}
+                messages.success(request, success_message)
                 return redirect(concept.get_absolute_url())
 
         return render(request, 'netbox_rack_concept/racks_merge.html', {