Use django.contrib.messages to show alerts

musician/templates/musician/base.html

@@ -82,6 +82,16 @@
       {% endblock sidebar %}
     </nav><!-- ./sidebar -->
     <div id="content" class="container-fluid pt-4">
+        {% block messages %}
+          {% for message in messages %}
+            <div class="alert alert-{{ message.tags|default:'info' }} alert-dismissible fade show" role="alert">
+              {{ message }}
+              <button type="button" class="close" data-dismiss="alert" aria-label="Close">
+                <span aria-hidden="true">&times;</span>
+              </button>
+            </div>
+          {% endfor %}
+        {% endblock messages %}
         {% block content %}   
         {% endblock content %}
     </div><!-- ./content -->

musician/views.py

@@ -1,7 +1,9 @@
 import logging
+from os import stat
 import smtplib
 
 from django.conf import settings
+from django.contrib import messages
 from django.core.exceptions import ImproperlyConfigured
 from django.core.mail import mail_managers
 from django.http import HttpResponse, HttpResponseRedirect
@@ -457,6 +459,14 @@ class MailboxChangePasswordView(CustomContextMixin, UserTokenRequiredMixin, Form
             'password': form.cleaned_data['password2']
         }
         status, response = self.orchestra.set_password_mailbox(self.kwargs['pk'], data)
+
+        if status < 400:
+            messages.add_message(self.request, messages.SUCCESS, _('Password updated!'))
+        else:
+            messages.add_message(self.request, messages.ERROR, _(
+                'Cannot process your request, please try again later.'))
+            logger.error("{}: {}".format(status, str(response)[:100]))
+
         return super().form_valid(form)
 
 

userpanel/settings.py

@@ -13,6 +13,7 @@ https://docs.djangoproject.com/en/2.2/ref/settings/
 import os
 
 from decouple import config, Csv
+from django.contrib.messages import constants as messages
 from django.utils.translation import gettext_lazy as _
 from dj_database_url import parse as db_url
 
@@ -178,3 +179,13 @@ URL_SAAS_WORDPRESS = config('URL_SAAS_WORDPRESS', None)
 # Managers: who should get notifications about services changes that
 # may require human actions (e.g. deleted mailboxes)
 MANAGERS = []
+
+
+# redefine MESSAGE_TAGS for a better integration with bootstrap
+MESSAGE_TAGS = {
+    messages.DEBUG: 'debug',
+    messages.INFO: 'info',
+    messages.SUCCESS: 'success',
+    messages.WARNING: 'warning',
+    messages.ERROR: 'danger',
+}