A Django app for extends Django's messages framework (django.contrib.messages
). framework, adds sticky messages and persistent messages.
This app provides support for process messages by differents storages by default uses a persistent, sticky, cookie and session storage, this allow you to use multiple storages, to differents proposoal.
- For messages that are in some midleware or is only to the current request and don't need save it.
- By Example Email unconfirmed messages or incomplete profile.
- This backend never save anything only simulate that do that.
- Only for authenticated users, messages are stored in the database.
- The messages has to be explicit read, and there are show while don't close it
This document assumes that you are familiar with Python and Django.
-
Download and unzip the app, or clone the source using
git
:$ git clone git://github.com/AliLozano/django-messages-extends.git
-
Make sure
messages_extends
is on yourPYTHONPATH
. -
Add
messages_extends
to yourINSTALLED_APPS
setting.INSTALLED_APPS = ( ... 'messages_extends', )
-
Make sure Django's
MessageMiddleware
is in yourMIDDLEWARE_CLASSES
setting (which is the case by default):MIDDLEWARE_CLASSES = ( ... 'django.contrib.messages.middleware.MessageMiddleware', )
-
Add the messages_extends URLs to your URL conf. For instance, in order to make messages available under
http://domain.com/messages/
, add the following line tourls.py
.urlpatterns = patterns('', (r'^messages/', include('messages_extends.urls')), ... )
-
In your settings, set the message storage backend to
messages_extends.storages.FallbackStorage
:MESSAGE_STORAGE = 'messages_extends.storages.FallbackStorage'
-
Set up the database tables using
$ manage.py syncdb
-
If you want to use the bundled templates, add the
templates
directory to yourTEMPLATE_DIRS
setting:TEMPLATE_DIRS = ( ... 'path/to/messages_extends/templates') )
Django's messages framework provides a number of message levels for various purposes such as success messages, warnings etc. This app provides constants with the same names, the difference being that messages with these levels are going to be persistent:
from messages_extends import constants as constants_messages
# default messages level
constants_messages.DEBUG = 10
constants_messages.INFO = 20
constants_messages.SUCCESS = 25
constants_messages.WARNING = 30
constants_messages.ERROR = 40
# persistent messages level
constants_messages.DEBUG_PERSISTENT = 9
constants_messages.INFO_PERSISTENT = 19
constants_messages.SUCCESS_PERSISTENT = 24
constants_messages.WARNING_PERSISTENT = 29
constants_messages.ERROR_PERSISTENT = 39
# sticky messages level
constants_messages.DEBUG_STICKY = 8
constants_messages.INFO_STICKY = 18
constants_messages.SUCCESS_STICKY = 23
constants_messages.WARNING_STICKY = 28
constants_messages.ERROR_STICKY = 38
Since the app is implemented as a storage backend for Django's messages framework, you can still use the regular Django API to add a message:
from django.contrib import messages
messages.add_message(request, messages.INFO, 'Hello world.')
Or use persistent messages with constants in messages_extends.constants
from django.contrib import messages
from messages_extends import constants as constants_messages
messages.add_message(request, constants.WARNING_PERSISTENT, 'You are going to see this message until you mark it as read.')
Note that this is only possible for logged-in users, so you are probably going to have make sure that the current user is not anonymous using request.user.is_authenticated()
. Adding a persistent message for anonymous users raises a NotImplementedError
.
And sticky messages:
from django.contrib import messages
from messages_extends import constants as constants_messages
messages.add_message(request, constants.WARNING_STICKY, 'You will going to see this messages only in this request')
You can also pass this function a User
object if the message is supposed to be sent to a user other than the one who is currently authenticated. User Sally will see this message the next time she logs in:
from django.contrib.auth.models import User
sally = User.objects.get(username='Sally')
messages.add_message(request, constants_messages.INFO_PERSISTENT, "Hola abc desde %s" %request.user, user=sally)
To persistent storages, there are other params like expires that is a datetime.
Messages can be displayed as described in the Django manual. However, you are probably going to want to include links tags for closing each message (i.e. marking it as read). In your template, use something like:
{% for message in messages %}
<div class="alert {% if message.tags %} alert-{{ message.tags }} {% endif %}">
{# close-href is used because href is used by bootstrap to closing other divs #}
<a class="close" data-dismiss="alert"{% if message.pk %} close-href="{% url message_mark_read message.pk %}"{% endif %}>×</a>
{{ message }}
</div>
{% endfor %}
You can also use the bundled templates instead. The following line replaces the code above. It allows the user to remove messages using bootstrap styling(you need use bootstrap.css and boostrap.js)
{% include "messages_extends/includes/alerts_bootstrap.html" %}
For use Ajax to mark them as read you can add the following code that works with jquery:
$("a.close[close-href]").click(function (e) {
e.preventDefault();
$.post($(this).attr("close-href"), "", function () {
});
}
);
Or use:
<script src="{% static "close-alerts.js" %}"></script>
You can use other backends, by default use:
MESSAGES_STORAGES = ('messages_extends.storages.StickyStorage',
'messages_extends.storages.PersistentStorage',
'django.contrib.messages.storage.session.CookieStorage',
'django.contrib.messages.storage.session.SessionStorage'))
But you can add or remove other backends in your settings in order that you need execute that, remember that session storagge save all messages, then you have to put it at final.
Remember that this module is only for messages from application, to messages between users you can use postman u other framework and to messages for activity stream you can use django-activity-stream