Closes #19773: Extend system view (#20078)

netbox/core/views.py

@@ -1,7 +1,7 @@
 import json
 import platform
 
-from django import __version__ as DJANGO_VERSION
+from django import __version__ as django_version
 from django.conf import settings
 from django.contrib import messages
 from django.contrib.auth.mixins import UserPassesTestMixin
@@ -23,7 +23,7 @@ from rq.worker_registration import clean_worker_registry
 from core.utils import delete_rq_job, enqueue_rq_job, get_rq_jobs_from_status, requeue_rq_job, stop_rq_job
 from netbox.config import get_config, PARAMS
 from netbox.object_actions import AddObject, BulkDelete, BulkExport, DeleteObject
-from netbox.registry import registry
+from netbox.plugins.utils import get_installed_plugins
 from netbox.views import generic
 from netbox.views.generic.base import BaseObjectView
 from netbox.views.generic.mixins import TableMixin
@@ -546,7 +546,7 @@ class SystemView(UserPassesTestMixin, View):
 
     def get(self, request):
 
-        # System stats
+        # System status
         psql_version = db_name = db_size = None
         try:
             with connection.cursor() as cursor:
@@ -561,7 +561,7 @@ class SystemView(UserPassesTestMixin, View):
             pass
         stats = {
             'netbox_release': settings.RELEASE,
-            'django_version': DJANGO_VERSION,
+            'django_version': django_version,
             'python_version': platform.python_version(),
             'postgresql_version': psql_version,
             'database_name': db_name,
@@ -572,16 +572,28 @@ class SystemView(UserPassesTestMixin, View):
         # Configuration
         config = get_config()
 
+        # Plugins
+        plugins = get_installed_plugins()
+
+        # Object counts
+        objects = {}
+        for ot in ObjectType.objects.public().order_by('app_label', 'model'):
+            if model := ot.model_class():
+                objects[ot] = model.objects.count()
+
         # Raw data export
         if 'export' in request.GET:
             stats['netbox_release'] = stats['netbox_release'].asdict()
             params = [param.name for param in PARAMS]
             data = {
                 **stats,
-                'plugins': registry['plugins']['installed'],
+                'plugins': plugins,
                 'config': {
                     k: getattr(config, k) for k in sorted(params)
                 },
+                'objects': {
+                    f'{ot.app_label}.{ot.model}': count for ot, count in objects.items()
+                },
             }
             response = HttpResponse(json.dumps(data, cls=ConfigJSONEncoder, indent=4), content_type='text/json')
             response['Content-Disposition'] = 'attachment; filename="netbox.json"'
@@ -595,6 +607,8 @@ class SystemView(UserPassesTestMixin, View):
         return render(request, 'core/system.html', {
             'stats': stats,
             'config': config,
+            'plugins': plugins,
+            'objects': objects,
         })