Added changelog views

netbox/extras/admin.py

@@ -132,7 +132,7 @@ class TopologyMapAdmin(admin.ModelAdmin):
 @admin.register(ObjectChange)
 class ObjectChangeAdmin(admin.ModelAdmin):
     actions = None
-    fields = ['time', 'content_type', 'display_object', 'action', 'display_user']
+    fields = ['time', 'content_type', 'display_object', 'action', 'display_user', 'object_data']
     list_display = ['time', 'content_type', 'display_object', 'display_action', 'display_user']
     list_filter = ['time', 'action', 'user__username']
     list_select_related = ['content_type', 'user']
@@ -156,7 +156,7 @@ class ObjectChangeAdmin(admin.ModelAdmin):
             OBJECTCHANGE_ACTION_DELETE: 'deletelink',
         }
         return mark_safe('<span class="{}">{}</span>'.format(icon[obj.action], obj.get_action_display()))
-    display_user.short_description = 'action'
+    display_action.short_description = 'action'
 
     def display_object(self, obj):
         if hasattr(obj.changed_object, 'get_absolute_url'):

netbox/extras/models.py

@@ -2,6 +2,7 @@ from __future__ import unicode_literals
 
 from collections import OrderedDict
 from datetime import date
+import json
 
 import graphviz
 from django.contrib.auth.models import User
@@ -720,6 +721,10 @@ class ObjectChange(models.Model):
 
         return super(ObjectChange, self).save(*args, **kwargs)
 
+    @property
+    def object_data_pretty(self):
+        return json.dumps(self.object_data, indent=4, sort_keys=True)
+
 
 #
 # User actions

netbox/extras/views.py

@@ -1,7 +1,9 @@
 from __future__ import unicode_literals
 
+from django import template
 from django.contrib import messages
 from django.contrib.auth.mixins import PermissionRequiredMixin
+from django.contrib.contenttypes.models import ContentType
 from django.db.models import Count
 from django.http import Http404
 from django.shortcuts import get_object_or_404, redirect, render, reverse
@@ -12,7 +14,7 @@ from taggit.models import Tag
 from utilities.forms import ConfirmationForm
 from utilities.views import BulkDeleteView, ObjectDeleteView, ObjectEditView, ObjectListView
 from .forms import ImageAttachmentForm, TagForm
-from .models import ImageAttachment, ReportResult, UserAction
+from .models import ImageAttachment, ObjectChange, ReportResult, UserAction
 from .reports import get_report, get_reports
 from .tables import TagTable
 
@@ -50,6 +52,41 @@ class TagBulkDeleteView(PermissionRequiredMixin, BulkDeleteView):
     default_return_url = 'extras:tag_list'
 
 
+#
+# Change logging
+#
+
+class ChangeLogView(View):
+    """
+    Present a history of changes made to an object.
+    """
+
+    def get(self, request, model, **kwargs):
+
+        # Get object my model and kwargs (e.g. slug='foo')
+        obj = get_object_or_404(model, **kwargs)
+
+        # Gather all changes for this object
+        content_type = ContentType.objects.get_for_model(model)
+        changes = ObjectChange.objects.filter(content_type=content_type, object_id=obj.pk)
+
+        # Check whether a header template exists for this model
+        base_template = '{}/{}.html'.format(model._meta.app_label, model._meta.model_name)
+        try:
+            template.loader.get_template(base_template)
+            object_var = model._meta.model_name
+        except template.TemplateDoesNotExist:
+            base_template = '_base.html'
+            object_var = 'obj'
+
+        return render(request, 'extras/changelog.html', {
+            object_var: obj,
+            'changes': changes,
+            'base_template': base_template,
+            'active_tab': 'changelog',
+        })
+
+
 #
 # Image attachments
 #