Closes #951: Provide a side-by-side view of rack elevations

netbox/dcim/views.py

@@ -6,6 +6,7 @@ from operator import attrgetter
 from django.contrib import messages
 from django.contrib.auth.decorators import permission_required
 from django.contrib.auth.mixins import PermissionRequiredMixin
+from django.core.paginator import EmptyPage, PageNotAnInteger
 from django.db.models import Count
 from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404, redirect, render
@@ -17,6 +18,7 @@ from ipam.models import Prefix, Service, VLAN
 from circuits.models import Circuit
 from extras.models import Graph, TopologyMap, GRAPH_TYPE_INTERFACE, GRAPH_TYPE_SITE
 from utilities.forms import ConfirmationForm
+from utilities.paginator import EnhancedPaginator
 from utilities.views import (
     BulkDeleteView, BulkEditView, BulkImportView, ObjectDeleteView, ObjectEditView, ObjectListView,
 )
@@ -291,6 +293,46 @@ class RackListView(ObjectListView):
     template_name = 'dcim/rack_list.html'
 
 
+class RackElevationListView(View):
+    """
+    Display a set of rack elevations side-by-side.
+    """
+
+    def get(self, request):
+
+        racks = Rack.objects.select_related(
+            'site', 'group', 'tenant', 'role'
+        ).prefetch_related(
+            'devices__device_type'
+        )
+        racks = filters.RackFilter(request.GET, racks).qs
+        total_count = racks.count()
+
+        # Pagination
+        paginator = EnhancedPaginator(racks, 25)
+        page_number = request.GET.get('page', 1)
+        try:
+            page = paginator.page(page_number)
+        except PageNotAnInteger:
+            page = paginator.page(1)
+        except EmptyPage:
+            page = paginator.page(paginator.num_pages)
+
+        # Determine rack face
+        if request.GET.get('face') == '1':
+            face_id = 1
+        else:
+            face_id = 0
+
+        return render(request, 'dcim/rack_elevation_list.html', {
+            'paginator': paginator,
+            'page': page,
+            'total_count': total_count,
+            'face_id': face_id,
+            'filter_form': forms.RackFilterForm(request.GET),
+        })
+
+
 def rack(request, pk):
 
     rack = get_object_or_404(Rack.objects.select_related('site__region', 'tenant__group', 'group', 'role'), pk=pk)