django-ok-likes 0.4

Django likes app

django-ok-likes is a liking app for Django, which allows users “like” and “unlike” any model instance. All functionality provides through django-rest-framework API views. Template tags and jinja’s global functions provide the ability to see who liked an object, which objects were liked by current user and count of likes for a given object.

Installation

Install with pip:

pip install django-ok-likes

Update INSTALLED_APPS:

INSTALLED_APPS = [
    ...
    'likes',
    'rest_framework',
    ...
]

Make migrations:

python manage.py migrate

Add likes.api.urls to your project urlpatterns:

urlpatterns = [
    ...
    path('api/v1/', include('likes.api.urls')),
    ...
]

Available settings

Add the models that you want to like to LIKES_MODELS in your settings file:

LIKES_MODELS = {
    "app.Model": {
        'serializer': 'app.api.serializer.YourModelSerializer'
    },
}

You can set any pagination class for ListAPIView:

LIKES_REST_PAGINATION_CLASS = 'core.api.pagination.MyResponsePagination'

Usage

API

Base endpoints

1. /api/v1/likes/list/ - List API View to return all likes for authenticated user.

   You can set serializer for each model in LIKES_MODELS setting to use it for content object serialization, otherwise, you will get an id of content object.

   For example:

   LIKE_MODELS = {
       "article.Article": {
           'serializer': 'article.api.serializers.ArticleSerializer'
       },
   }

   Use GET parameter search to filter by a content type’s model: /api/v1/likes/list/?search=article

2. /api/v1/likes/count/ - API View to return count of likes for authenticated user.

3. /api/v1/likes/is/ - API View to check is given elements are liked by authenticated user. As result, you will get a list of ids.

   Possible payload:

   {
       "content_type": 1,
       "ids": [1,2,3]
   }

   Possible result:

   {
       "ids": [1,3]
   }

4. /api/v1/likes/toggle/ - API View to like-unlike a given object by authenticated user.

   Possible payload:

   {
       "content_type": 1,
       "id": 1
   }

   Possible result:

   {
       "is_liked": true
   }

Filters

likes_count

Returns a count of likes for a given object:

{{ object|likes_count }}

Template Tags

who_liked

Returns a queryset of users, who liked a given object:

{% who_liked object as fans %}

{% for user in fans %}
    <div class="like">{{ user.get_full_name }} likes {{ object }}</div>
{% endfor %}

likes

Returns a queryset of likes for a given user:

{% likes request.user as user_likes %}
{% for like in user_likes %}
    <div>{{ like }}</div>
{% endfor %}

is_liked

Returns a bool value, which says is a given object liked by a given user:

{% is_liked object request.user as liked %}

Jinja global functions

get_likes_count

The same as the likes_count filter.

Usage:

{{ get_likes_count(object) }}

get_who_liked

The same as the who_liked tag.

Usage:

{{ get_who_liked(object) }}

get_likes

The same as the likes tag.

Usage:

{{ get_likes(request.user) }}

get_is_liked

The same as the is_liked tag.

Usage:

{{ get_is_liked(object, request.user) }}

Signals

likes.signals.object_liked

A signal, which sents immediately after the object was liked and provides the single kwarg of created Like instance.

likes.signals.object_unliked

A signal, which sents immediately after the object was unliked and provides the single kwarg of an object.