Add title to history of deleted objects

logs/models.py

@@ -285,6 +285,7 @@ class HistoryEvent:
 
 class History:
     def __init__(self):
+        self.name = None
         self.events = []
         self.related = []  # For example, a machine has a list of its interfaces
         self._last_version = None
@@ -491,6 +492,9 @@ class UserHistory(History):
         for version in user_versions:
             self._add_revision(version)
 
+        # Update name
+        self.name = self._last_version.field_dict["pseudo"]
+
         # Do the same thing for the Adherent of Club
         self._last_version = None
         obj_versions = filter(
@@ -570,7 +574,12 @@ class MachineHistory(History):
             i.field_dict["id"]) for i in self.related]
         self.related = list(dict.fromkeys(self.related))
 
-        return super(MachineHistory, self).get(machine_id, Machine)
+        events = super(MachineHistory, self).get(machine_id, Machine)
+
+        # Update name
+        self.name = self._last_version.field_dict["name"]
+
+        return events
 
 
 class InterfaceHistoryEvent(HistoryEvent):
@@ -616,4 +625,9 @@ class InterfaceHistory(History):
         self.event_type = InterfaceHistoryEvent
 
     def get(self, interface_id):
-        return super(InterfaceHistory, self).get(interface_id, Interface)
+        events = super(InterfaceHistory, self).get(interface_id, Interface)
+
+        # Update name
+        self.name = self._last_version.field_dict["mac_address"]
+
+        return events

logs/templates/logs/detailed_history.html

@@ -28,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 {% block title %}{% trans "History" %}{% endblock %}
 
 {% block content %}
-<h2>{% blocktrans %}History of {{ object }}{% endblocktrans %}</h2>
+<h2>{% blocktrans %}History of {{ title }}{% endblocktrans %}</h2>
 
 {% if events %}
     <table class="table table-striped">

logs/views.py

@@ -588,10 +588,13 @@ def detailed_history(request, object_name, object_id):
     # Add the paginator in case there are many results
     events = re2o_paginator(request, events, max_result)
 
+    # Add a title in case the object was deleted
+    title = instance or "{} ({})".format(history.name, _("Deleted"))
+
     return render(
         request,
         "logs/detailed_history.html",
-        {"object": instance, "events": events, "related_history": history.related},
+        {"title": title, "events": events, "related_history": history.related},
     )