django-badgify

This Django application will help you to create your own badge system on your website.

It has been used on Ulule to create our own badge mechanism.

Installation

$ pip install django-badgify

Usage

Add badgify to your INSTALLED_APPS in settings.py:

INSTALLED_APPS = (
    # ...
    'badgify',
)

Synchronize the database:

$ python manage.py migrate badgify

Create a badgify_recipes.py file in your Django application:

$ cd path/to/your/django/app
$ touch badgify_recipes.py

Open this file and import badgify.recipe.BaseRecipe class and badgify module:

from badgify.recipe import BaseRecipe
import badgify

Create and register your recipe classes:

class PythonLoverRecipe(BaseRecipe):
    pass


class JSLoverRecipe(BaseRecipe):
    pass


# Per class
badgify.register(PythonLoverRecipe)
badgify.register(JSLoverRecipe)

# All at once in a list
badgify.register([PythonLoverRecipe, JSLoverRecipe])

A recipe class must implement:

• name class attribute

  The badge name (humanized).

• image property

  The badge image/logo as a file object.

A recipe class may implement:

• slug class attribute

  The badge slug (used internally and in URLs). If not provided, it will be auto-generated based on the badge name.

• description class attribute

  The badge description (short). It not provided, value will be blank.

• user_ids property

  QuerySet returning User IDs likely to be awarded. You must return a QuerySet and not just a Python list or tuple. You can use values_list('id', flat=True).

• db_read class attribute

  The database alias on which to perform read queries. Defaults to django.db.DEFAULT_DB_ALIAS.

• batch_size class attribute

  How many Award objects to create at once. Defaults to BADGIFY_BATCH_SIZE (500).

Example:

from django.contrib.staticfiles.storage import staticfiles_storage

from badgify.recipe import BaseRecipe
import badgify

from .models import MyCustomUser


class PythonLoverRecipe(BaseRecipe):
    """
    People loving Python.
    """
    name = 'Python Lover'
    slug = 'python-lover'
    description = 'People loving Python programming language'

    @property
    def image(self):
        return staticfiles_storage.open('python-lover.png')

    @property
    def user_ids(self):
        return (MyCustomUser.objects.filter(love_python=True)
                                    .values_list('id', flat=True))


class JSLoverRecipe(BaseRecipe):
    """
    People loving JS.
    """
    name = 'JS Lover'
    slug = 'js-lover'
    description = 'People loving JS programming language'

    @property
    def image(self):
        return staticfiles_storage.open('js-lover.png')

    @property
    def user_ids(self):
        return (MyCustomUser.objects.filter(love_js=True)
                                    .values_list('id', flat=True))


class JavaLoverRecipe(BaseRecipe):
    """
    People loving Java.
    """
    name = 'Java Lover'
    slug = 'java-lover'
    description = 'People loving Java programming language'

    @property
    def image(self):
        return staticfiles_storage.open('java-lover.png')


badgify.register([
    PythonLoverRecipe,
    JSLoverRecipe,
    JavaLoverRecipe,
])

Once you have implemented and registered your recipe classes, you can invoke available commands bellow:

# Create badges from recipes
$ python manage.py badgify_sync badges

# Update badges from recipes
$ python manage.py badgify_sync badges --update

# Create awards
$ python manage.py badgify_sync awards

# Create awards bypassing signals (improve performances)
$ python manage.py badgify_sync awards --disable-signals

# Only create awards for "python" badge
$ python manage.py badgify_sync awards --badges python

# Only create awards for "python" and "go" badges
$ python manage.py badgify_sync awards --badges "python go"

# Create awards for all badges, except "php"
$ python manage.py badgify_sync awards --exclude-badges php

# Create awards for all badges, except "php" and "java"
$ python manage.py badgify_sync awards --exclude-badges "php java"

# Denormalize Badge.users.count() into Badge.users_count field
$ python manage.py badgify_sync counts

# Only denormalize counts for "python" badge
$ python manage.py badgify_sync counts --badges python

# Denormalize counts for all badges, except "php"
$ python manage.py badgify_sync counts --exclude-badges php

# Denormalize counts for all badges, except "php" and "java"
$ python manage.py badgify_sync counts --exclude-badges "php java"

# Typical workflow for best performances
$ python manage.py badgify_sync badges
$ python manage.py badgify_sync awards --disable-signals
$ python manage.py badgify_sync counts

# WARNING: if you delete awards to start again with a fresh table
# don't forget to update Badge.users_count field. Or use this command:
$ python manage.py badgify_reset

# Typical workflow for best performances if you want to recompute awards
$ python manage.py badgify_reset
$ python manage.py badgify_sync awards --disable-signals
$ python manage.py badgify_sync counts

Templatetags

badgify_badges

Takes two optional arguments:

• user: a User object
• username: a User username

Without any argument, displays all badges. Otherwise, badges awarded by the given user.

{% load badgify_tags %}

{% badgify_badges as badges %}
{% badgify_badges username="johndoe" as badges %}
{% badgify_badges user=user as badges %}

{% for badge in badges %}
    {{ badge.name }}
{% endfor %}

Views

django-badgify provides two views:

• badgify.views.BadgifyListView: displays all badges as paginated list
• badgify.views.BadgifyDetailView: displays awarded users as paginated list for a given badge

This application does not include templates. It lets you implement templates as you like (see example project).

To include these two views, include the provided badgify.urls:

# -*- coding: utf-8 -*-
from django.conf.urls import include, url

urlpatterns = [
    # Your other includes
    url(r'^badges/', include('badgify.urls')),
]

See example project for more details.

Custom Models

django-badgify lets you define your own model classes for Badge and Award models. That can be pretty useful for i18n stuff (example: django-transmetta support), adding custom fields, methods or properties.

Your models must inherit from badgify.models.base model classes:

# yourapp.models

from badgify.models import base


class Badge(base.Badge):
    # you own fields / logic here
    class Meta(base.Badge.Meta):
        abstract = False


class Award(base.Award):
    # you own fields / logic here
    class Meta(base.Award.Meta):
        abstract = False

Then tell the application to use them in place of default ones in your settings.py module:

# yourapp.settings

BADGIFY_BADGE_MODEL = 'yourapp.models.Badge'
BADGIFY_AWARD_MODEL = 'yourapp.models.Award'

Settings

You can altere the application behavior by defining settings in your settings.py module.

All application settings are prefixed with BADGIFY_.

BADGIFY_BADGE_IMAGE_UPLOAD_ROOT

The root path for Badge model ImageField.

BADGIFY_BADGE_IMAGE_UPLOAD_URL

The URL Badge model ImageField.

BADGIFY_BADGE_IMAGE_UPLOAD_STORAGE

Your own django.core.files.storage storage instance.

BADGIFY_BADGE_LIST_VIEW_PAGINATE_BY

Number of badges to display on the badge list page.

BADGIFY_BADGE_DETAIL_VIEW_PAGINATE_BY

Number of awarded users to display on the badge detail page.

BADGIFY_BADGE_MODEL

Your own concrete Badge model class as module path.

Example: yourapp.models.Badge.

BADGIFY_AWARD_MODEL

Your own concrete Award model class as module path.

Example: yourapp.models.Award.

BADGIFY_BATCH_SIZE

Maximum number of Award objects to create at once.

Defaults to 500.

Contribute

# Don't have pip?
$ sudo easy_install pip

# Don't already have virtualenv?
$ sudo pip install virtualenv

# Clone and install dependencies
$ git clone https://github.com/ulule/django-badgify.git
$ cd django-badgify
$ make install

# Launch tests
$ make test

# Launch example project
$ make create_fixtures
$ make serve