Model examples

These examples are from Django's SVN release, which can be significantly different from previous releases. Get old examples here: 0.96, 0.95.

This is a set of example models.

1. Giving models custom methods
2. Many-to-one relationships
3. Many-to-many relationships
4. Specifying ordering
5. The lookup API
6. get_latest_by
7. Many-to-many relationships via an intermediary table
8. One-to-one relationships
9. Relating an object to itself, many-to-one
10. Relating a model to another model more than once
11. Adding hooks before/after saving and deleting
12. Transactions
13. Many-to-one relationships that can be null
14. Custom column/table names
15. Using SQL reserved names
16. OR lookups
17. Multiple many-to-many relationships between the same two tables
18. Specifying 'choices' for a field
19. Using properties on models
20. Giving models a custom manager
21. Mutually referential many-to-one relationships
22. Reverse lookups
23. Invalid models
24. Many-to-many relationships between the same two tables
25. Many-to-many and many-to-one relationships to the same table
26. Object pagination
27. Callable defaults
28. get_or_create()
29. Generic relations
30. DB-API Shortcuts
31. Fixtures.
32. User-registered management commands
33. Empty model tests
34. Tests for select_related()
35. Storing files according to a custom storage system