Django application for organizing a pay subscription. It is able to deduct periodic payments from users accounts, to disconnect at the end of the subscription funds and enable subscription when the money arrives.

• celery
• django-celery

pip install git+https://github.com/Apocalepse/django-subscription-billing.git

1. Add "subscription" to your INSTALLED_APPS setting like this:

   INSTALLED_APPS = (
       ...
       'subscription',
   )

2. Run python manage.py migrate to create the subscription models.

First, you need to add custom field to your user model to store balance. This field must be DecimalField with max_digits=8 and decimal_places=2. Example:

balance = models.DecimalField(u'Balance', max_digits=8, decimal_places=2, default=0)

SUBSCRIPTION_SUBSCRIBER_MODEL — your user model in format app.Model, default is auth.User

SUBSCRIPTION_SUBSCRIBER_MODEL_FIELD — field in model, specified in SUBSCRIPTION_SUBSCRIBER_MODEL, to store balance. Default is account_balance

SUBSCRIPTION_SUBSCRIBER_KWARGS — default kwargs for filter accounts (example active, boolean field), default is {'is_active': True}

Application has 2 task for celery:

1. make_minus_transactions Calculating periodic payments for all active subscriptions, creates transactions and disable subscriptions, if need. Must be run at least once a day.

2. calculate_balances The task calculates the user's balance, turning over all transactions. This task also activates the subscription (in the processing of the transaction plus a negative balance in the former, if enough funds on balance). Can run as often, how fast you want to adjust the balance and to "see" plus-transaction. For example, every 5 minutes.

Application makes "minus" transactions, plus transactions can be created in code or admin interface.

Create the subscription plan or plans in admin interface.

Application has models for:

Subscription plans,

Help with documentation, english comments in code and testing. This is something that I do not normally have time to do. I would appreciate any help and contribution to the project.