Moved object context rendering to ObjectConfigContextView and standardized the template

netbox/dcim/views.py

@@ -19,6 +19,7 @@ from natsort import natsorted
 
 from circuits.models import Circuit
 from extras.models import Graph, TopologyMap, GRAPH_TYPE_INTERFACE, GRAPH_TYPE_SITE
+from extras.views import ObjectConfigContextView
 from ipam.models import Prefix, Service, VLAN
 from utilities.forms import ConfirmationForm
 from utilities.paginator import EnhancedPaginator
@@ -994,16 +995,9 @@ class DeviceConfigView(PermissionRequiredMixin, View):
         })
 
 
-class DeviceConfigContextView(View):
-
-    def get(self, request, pk):
-
-        device = get_object_or_404(Device, pk=pk)
-
-        return render(request, 'dcim/device_configcontext.html', {
-            'device': device,
-            'active_tab': 'config-context',
-        })
+class DeviceConfigContextView(ObjectConfigContextView):
+    object_class = Device
+    base_template = 'dcim/device.html'
 
 
 class DeviceCreateView(PermissionRequiredMixin, ObjectEditView):

netbox/extras/models.py

@@ -2,7 +2,6 @@ from __future__ import unicode_literals
 
 from collections import OrderedDict
 from datetime import date
-import json
 
 import graphviz
 from django.contrib.auth.models import User
@@ -21,6 +20,7 @@ from django.utils.safestring import mark_safe
 from dcim.constants import CONNECTION_STATUS_CONNECTED
 from utilities.utils import foreground_color
 from .constants import *
+from .querysets import ConfigContextQuerySet
 
 
 #
@@ -676,6 +676,8 @@ class ConfigContext(models.Model):
     )
     data = JSONField()
 
+    objects = ConfigContextQuerySet.as_manager()
+
     class Meta:
         ordering = ['weight', 'name']
 
@@ -696,22 +698,9 @@ class ConfigContextModel(models.Model):
         Return the rendered configuration context for a device or VM.
         """
 
-        # `device_role` for Device; `role` for VirtualMachine
-        role = getattr(self, 'device_role', None) or self.role
-
-        # Gather all ConfigContexts orders by weight, name
-        contexts = ConfigContext.objects.filter(
-            Q(regions=self.site.region) | Q(regions=None),
-            Q(sites=self.site) | Q(sites=None),
-            Q(roles=role) | Q(roles=None),
-            Q(tenants=self.tenant) | Q(tenants=None),
-            Q(platforms=self.platform) | Q(platforms=None),
-            is_active=True,
-        ).order_by('weight', 'name')
-
         # Compile all config data, overwriting lower-weight values with higher-weight values where a collision occurs
         data = {}
-        for context in contexts:
+        for context in ConfigContext.objects.get_for_object(self):
             data.update(context.data)
 
         return data

netbox/extras/querysets.py

@@ -0,0 +1,23 @@
+from __future__ import unicode_literals
+
+from django.db.models import Q, QuerySet
+
+
+class ConfigContextQuerySet(QuerySet):
+
+    def get_for_object(self, obj):
+        """
+        Return all applicable ConfigContexts for a given object. Only active ConfigContexts will be included.
+        """
+
+        # `device_role` for Device; `role` for VirtualMachine
+        role = getattr(obj, 'device_role', None) or obj.role
+
+        return self.filter(
+            Q(regions=obj.site.region) | Q(regions=None),
+            Q(sites=obj.site) | Q(sites=None),
+            Q(roles=role) | Q(roles=None),
+            Q(tenants=obj.tenant) | Q(tenants=None),
+            Q(platforms=obj.platform) | Q(platforms=None),
+            is_active=True,
+        ).order_by('weight', 'name')

netbox/extras/views.py

@@ -100,6 +100,24 @@ class ConfigContextBulkDeleteView(PermissionRequiredMixin, BulkDeleteView):
     default_return_url = 'extras:configcontext_list'
 
 
+class ObjectConfigContextView(View):
+    object_class = None
+    base_template = None
+
+    def get(self, request, pk):
+
+        obj = get_object_or_404(self.object_class, pk=pk)
+        source_contexts = ConfigContext.objects.get_for_object(obj)
+
+        return render(request, 'extras/object_configcontext.html', {
+            self.object_class._meta.model_name: obj,
+            'rendered_context': obj.get_config_context(),
+            'source_contexts': source_contexts,
+            'base_template': self.base_template,
+            'active_tab': 'config-context',
+        })
+
+
 #
 # Change logging
 #

netbox/templates/dcim/device_configcontext.html

@@ -1,19 +0,0 @@
-{% extends 'dcim/device.html' %}
-{% load helpers %}
-
-{% block title %}{{ device }} - Config Context{% endblock %}
-
-{% block content %}
-    <div class="row">
-        <div class="col-md-6">
-            <div class="panel panel-default">
-                <div class="panel-heading">
-                    <strong>Config Context</strong>
-                </div>
-                <div class="panel-body">
-                    <pre>{{ device.get_config_context|render_json }}</pre>
-                </div>
-            </div>
-        </div>
-    </div>
-{% endblock %}

netbox/templates/extras/object_configcontext.html

@@ -0,0 +1,35 @@
+{% extends base_template %}
+{% load helpers %}
+
+{% block title %}{{ block.super }} - Config Context{% endblock %}
+
+{% block content %}
+    <div class="row">
+        <div class="col-md-6">
+            <div class="panel panel-default">
+                <div class="panel-heading">
+                    <strong>Rendered Context</strong>
+                </div>
+                <div class="panel-body">
+                    <pre>{{ rendered_context|render_json }}</pre>
+                </div>
+            </div>
+        </div>
+        <div class="col-md-6">
+            <div class="panel panel-default">
+                <div class="panel-heading">
+                    <strong>Source Contexts</strong>
+                </div>
+                {% for context in source_contexts %}
+                    <div class="panel-body">
+                        <div class="pull-right">
+                            <span class="text-muted">{{ context.weight }}</span>
+                        </div>
+                        <a href="{{ context.get_absolute_url }}"><strong>{{ context.name }}</strong></a>
+                        <pre>{{ context.data|render_json }}</pre>
+                    </div>
+                {% endfor %}
+            </div>
+        </div>
+    </div>
+{% endblock %}

netbox/templates/virtualization/virtualmachine_configcontext.html

@@ -1,18 +0,0 @@
-{% extends 'virtualization/virtualmachine.html' %}
-
-{% block title %}{{ virtualmachine }} - Config Context{% endblock %}
-
-{% block content %}
-    <div class="row">
-        <div class="col-md-6">
-            <div class="panel panel-default">
-                <div class="panel-heading">
-                    <strong>Config Context</strong>
-                </div>
-                <div class="panel-body">
-                    <pre>{{ virtualmachine.get_config_context }}</pre>
-                </div>
-            </div>
-        </div>
-    </div>
-{% endblock %}

netbox/virtualization/views.py

@@ -9,6 +9,7 @@ from django.views.generic import View
 
 from dcim.models import Device, Interface
 from dcim.tables import DeviceTable
+from extras.views import ObjectConfigContextView
 from ipam.models import Service
 from utilities.views import (
     BulkComponentCreateView, BulkDeleteView, BulkEditView, BulkImportView, ComponentCreateView, ObjectDeleteView,
@@ -269,16 +270,9 @@ class VirtualMachineView(View):
         })
 
 
-class VirtualMachineConfigContextView(View):
-
-    def get(self, request, pk):
-
-        virtualmachine = get_object_or_404(VirtualMachine, pk=pk)
-
-        return render(request, 'virtualization/virtualmachine_configcontext.html', {
-            'virtualmachine': virtualmachine,
-            'active_tab': 'config-context',
-        })
+class VirtualMachineConfigContextView(ObjectConfigContextView):
+    object_class = VirtualMachine
+    base_template = 'virtualization/virtualmachine.html'
 
 
 class VirtualMachineCreateView(PermissionRequiredMixin, ObjectEditView):