Show celery task results on system status page

aleksis/core/templates/core/system_status.html

@@ -62,4 +62,68 @@
       </div>
     </div>
   </div>
+
+
+  {% if tasks %}
+    <div class="card">
+      <div class="card-content">
+        <span class="card-title"> {% blocktrans %}Celery task results{% endblocktrans %}</span>
+
+        <table>
+          <thead>
+            <tr>
+              <th>{% trans "Task" %}</th>
+              <th>{% trans "ID" %}</th>
+              <th>{% trans "Date done" %}</th>
+              <th>{% trans "Status" %}</th>
+            </tr>
+          </thead>
+          <tbody>
+            {% for task in tasks %}
+              {% if task != None %}
+                <tr>
+                  <td>{{ task.task_name }}</td>
+                  <td>{{ task.task_id }}</td>
+                  <td>{{ task.date_done }}</td>
+                  <td>
+                    {% if task.status == "PENDING" %}
+                      <a class="tooltipped" data-position="top"
+                      data-tooltip="{{ task.status }}">
+                        <i class="material-icons tiny orange-text">hourglass_empty</i>
+                      </a>
+                    {% elif task.status == "STARTED" %}
+                      <a class="tooltipped" data-position="top"
+                      data-tooltip="{{ task.status }}">
+                        <i class="material-icons tiny orange-text">directions_run</i>
+                      </a>
+                    {% elif task.status == "SUCCESS" %}
+                      <a class="tooltipped" data-position="top"
+                      data-tooltip="{{ task.status }}">
+                        <i class="material-icons tiny green-text">done</i>
+                      </a>
+                    {% elif task.status == "FAILURE" %}
+                      <a class="tooltipped" data-position="top"
+                      data-tooltip="{{ task.status }}">
+                        <i class="material-icons tiny red-text">error</i>
+                      </a>
+                    {% elif task.status == "RETRY" %}
+                      <a class="tooltipped" data-position="top"
+                      data-tooltip="{{ task.status }}">
+                        <i class="material-icons tiny orange-text">hourglass_full</i>
+                      </a>
+                    {% elif task.status == "REVOKED" %}
+                      <a class="tooltipped" data-position="top"
+                      data-tooltip="{{ task.status }}">
+                        <i class="material-icons tiny red-text">clear</i>
+                      </a>
+                    {% endif %}
+                  </td>
+                </tr>
+              {% endif %}
+            {% endfor %}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  {% endif %}
 {% endblock %}

aleksis/core/views.py

+from itertools import chain
 from typing import Optional
 
 from django.apps import apps
+from django.conf import settings
 from django.contrib.auth.mixins import PermissionRequiredMixin
 from django.core.exceptions import PermissionDenied
 from django.core.paginator import Paginator
@@ -295,6 +297,15 @@ def system_status(request: HttpRequest) -> HttpResponse:
     """View giving information about the system status."""
     context = {}
 
+    if "django_celery_results" in settings.INSTALLED_APPS:
+        from django_celery_results.models import TaskResult # noqa
+        from celery.task.control import inspect # noqa
+        job_list = list(inspect().registered_tasks().values())[0]
+        results = []
+        for job in job_list:
+            results.append(TaskResult.objects.filter(task_name=job).last())
+        context["tasks"] = results
+
     return render(request, "core/system_status.html", context)