Introduction

Discipline is an MIT-licensed model versioning system for the Django framework. It stores all changes performed on a database in their rawest form, which allows for advanced database-level queries.

Features

• Django admin integration.
• Gives the ability to undo any action (that is undoable).
• In the admin interface provides a detailed list of actions, Discipline-controlled models get a custom history page with a list of actions filtered for the specific object.
• Provides low-level API for checking the state of any object that ever existed at any point in time (with the ability to restore it, of course).
• Supports schema migrations, integrates with South, provides API to enable Discipline-controlled South data migrations.

Limitations

Both of these are compromises made to keep the code simple, they may be addressed in the future, but they are not a priority at the moment.

• Does not support Django’s ManyToManyField and OneToOneField. The former can be emulated by creating a connecting model.
• Forces each Discipline-controlled model to have a discipline.models.UUIDField as its primary key.