Allow some customisation in core/edit.jinja

core/templates/core/edit.jinja

@@ -1,19 +1,40 @@
 {% extends "core/base.jinja" %}
 
+{# if the template context has the `object_name` variable,
+   then this one will be used in the page title,
+   instead of the result of `str(object)` #}
+{% if object and not object_name %}
+  {% set object_name=object %}
+{% endif %}
+
 {% block title %}
-  {% if object %}
-    {% trans obj=object %}Edit {{ obj }}{% endtrans %}
+  {% if object_name %}
+    {% trans name=object_name %}Edit {{ name }}{% endtrans %}
   {% else %}
     {% trans %}Save{% endtrans %}
   {% endif %}
 {% endblock %}
 
 {% block content %}
-  {% if object %}
-    <h2>{% trans obj=object %}Edit {{ obj }}{% endtrans %}</h2>
+  {% if object_name %}
+    <h2>{% trans name=object_name %}Edit {{ name }}{% endtrans %}</h2>
   {% else %}
     <h2>{% trans %}Save{% endtrans %}</h2>
   {% endif %}
+  {% if messages %}
+    <div x-data="{show_alert: true}" class="alert alert-green" x-show="show_alert" x-transition>
+      <span class="alert-main">
+        {% for message in messages %}
+          {% if message.level_tag == "success" %}
+            {{ message }}
+          {% endif %}
+        {% endfor %}
+      </span>
+      <span class="clickable" @click="show_alert = false">
+        <i class="fa fa-close"></i>
+      </span>
+    </div>
+  {% endif %}
   <form action="" method="post" enctype="multipart/form-data">
     {% csrf_token %}
     {{ form.as_p() }}

core/views/group.py

@@ -18,6 +18,7 @@
 from django import forms
 from django.contrib.auth.mixins import PermissionRequiredMixin
 from django.contrib.auth.models import Permission
+from django.contrib.messages.views import SuccessMessageMixin
 from django.core.exceptions import ImproperlyConfigured
 from django.shortcuts import get_object_or_404
 from django.urls import reverse_lazy
@@ -136,7 +137,9 @@ class GroupDeleteView(CanEditMixin, DeleteView):
     success_url = reverse_lazy("core:group_list")
 
 
-class PermissionGroupsUpdateView(PermissionRequiredMixin, UpdateView):
+class PermissionGroupsUpdateView(
+    PermissionRequiredMixin, SuccessMessageMixin, UpdateView
+):
     """Manage the groups that have a specific permission.
 
     Notes:
@@ -151,9 +154,8 @@ class PermissionGroupsUpdateView(PermissionRequiredMixin, UpdateView):
 
     Example:
         ```python
-        class AddSubscriptionGroupsView(PermissionGroupsUpdateView):
+        class SubscriptionPermissionView(PermissionGroupsUpdateView):
             permission = "subscription.add_subscription"
-            success_url = reverse_lazy("foo:bar")
         ```
     """
 
@@ -161,6 +163,7 @@ class PermissionGroupsUpdateView(PermissionRequiredMixin, UpdateView):
     template_name = "core/edit.jinja"
     form_class = PermissionGroupsForm
     permission = None
+    success_message = _("Groups have been successfully updated.")
 
     def get_object(self, *args, **kwargs):
         if not self.permission: