'show_deleted_objects' boolean attribute in GASDeleteView

gas/templates/gas/delete_confirmation.html

@@ -7,14 +7,16 @@
 {% block content %}
     <p>{{ confirmation_text }}</p>
 
-    <h2>{% trans "Summary" %}</h2>
-    <ul>
-        {% for model_name, object_count in deleted_model_count.items %}
-        <li>{{ model_name|capfirst }}: {{ object_count }}</li>
-        {% endfor %}
-    </ul>
-    <h2>{% trans "Objects" %}</h2>
-    <ul>{{ deleted_objects|unordered_list }}</ul>
+    {% if show_deleted_objects %}
+        <h2>{% trans "Summary" %}</h2>
+        <ul>
+            {% for model_name, object_count in deleted_model_count.items %}
+            <li>{{ model_name|capfirst }}: {{ object_count }}</li>
+            {% endfor %}
+        </ul>
+        <h2>{% trans "Objects" %}</h2>
+        <ul>{{ deleted_objects|unordered_list }}</ul>
+    {% endif %}
 
     <form method="post" action=".">{% csrf_token %}
         <button  type="submit">{% trans 'Delete' %}</button>

gas/views.py

@@ -217,6 +217,7 @@ class GASDeleteView(GASMixin, DeleteView):
     template_name = "gas/delete_confirmation.html"
     confirmation_text = _("Are you sure you want to delete {object}?")
     deleted_text = _("{object} deleted.")
+    show_deleted_objects = True
 
     def get_confirmation_text(self):
         return self.confirmation_text.format(object=self.object)
@@ -239,11 +240,15 @@ class GASDeleteView(GASMixin, DeleteView):
     def get_context_data(self, **kwargs):
         ctx = super().get_context_data(**kwargs)
 
-        deleted_objects, deleted_model_count = self.get_deleted_objects()
+        if self.show_deleted_objects:
+            deleted_objects, deleted_model_count = self.get_deleted_objects()
+        else:
+            deleted_objects = deleted_model_count = None
 
         ctx.update({
             'confirmation_text': self.get_confirmation_text(),
             'cancel_url': self.get_success_url(),
+            'show_deleted_objects': self.show_deleted_objects,
             'deleted_objects': deleted_objects,
             'deleted_model_count': deleted_model_count,
         })