Django app providing view interface to django-secretballot.

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Django Likes

Django app providing view interface to django-secretballot.

This app utilizes django-secretballot to provide Facebook or Google+1 style item liking of Django model objects. Authenticated or anonymous users are allowed to like any given object only once.

Installation

  1. Install or add django-likes to your Python path.

  2. Configure django-secretballot as described here

  3. Add likes to your INSTALLED_APPS setting.

  4. Add likes url include to your project’s urls.py file:

    (r'^likes/', include('likes.urls')),

  5. Add likes.middleware.SecretBallotUserIpUseragentMiddleware to your MIDDLEWARE_CLASSES setting, i.e.:

    MIDDLEWARE_CLASSES = (
    ...other middleware classes...
    "likes.middleware.SecretBallotUserIpUseragentMiddleware",
)

  6. Add django.core.context_processors.request to your TEMPLATE_CONTEXT_PROCESSORS setting, i.e.:

    TEMPLATE_CONTEXT_PROCESSORS = (
    ...other context processors...
    "django.core.context_processors.request",
)

Usage

Template Tags

{% like object %}

django-likes provides an inclusion tag called likes which renders a like button for any given object, displaying the number of likes and allowing users to like the object. The tag accepts as first argument the object for which to display and on which to apply likes, i.e.:

{% load likes_inclusion_tags %}

...some html...

{% likes object %}

...some more html...

object here is any Django model object for which django-secretballot voting has been enabled. In the background the like is uniquely addressed to the object using its content type and object id.

The template tag supports AJAX style liking. To enable it you need ensure django-likes’ static media is accessible, see managing static files. You also need to load jQuery somewhere in your template, e.g.:

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.3/jquery.min.js"></script>

Signals

likes.signals.likes_enabled_test

To determine whether or not liking/voting should be enabled on an object, connect a signal handler to the likes.signals.likes_enabled_test signal, raising a likes.exceptions.LikesNotEnabledException if liking should be disabled. The default behaviour is that liking is enabled for all secretballot enabled objects.

likes.signals.can_vote_test

To determine whether or not the current requesting user can vote, connect a signal handler to the likes.signals.can_vote_test signal, raising a likes.exceptions.CannotVoteException if the current user should not be allowed to vote (the handler receives a request object). The default behaviour is that all users can vote except if they have previously voted on the object in question.

Praekelt Foundation

  • Shaun Sephton

  • Jonathan Bydendyk

  • Hedley Roos

Changelog

0.0.6 (2012-07-24)

  1. Allow for downvotes.

0.0.5 (2011-09-15)

  1. Corrected manifest to include missing static resources.

0.0.4 (2011-09-14)

  1. Documentation, number of fixes.

0.0.3

  1. Handle multiple likes buttons on the same page

  2. Remove dependency on jmbo

  3. Unit tests

0.0.2

  1. Prevent local cache on like redirect.

0.0.1

  1. Initial release.

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