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625d8cf9b9060ae44a0c601a2aad07dc0a87c881
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3 Commits

Author SHA1 Message Date
Ryth Azhur
625d8cf9b9 Fix Optional[Shape] unwrapping and add comprehensive shapes stress tests 
_extract_shape_class now handles `Shape | None` (Union types) by checking
isinstance(hint, types.UnionType) and iterating args for Shape subclasses.
This fixes nullable FK detection — any `editor: AuthorShape | None` field
is now correctly recognized as a nested shape.

48 stress tests covering:
- 5-level deep nesting (Publisher → Author → Book → Chapter → Section)
- Two FKs to same model (author + editor)
- Slug PK (Tag), UUID PK (Section)
- M2M relationships (Book.tags)
- Nullable FKs returning None
- Empty strings, zero integers, false booleans (truthiness traps)
- 100-record smoke test
- Query efficiency (assertNumQueries)
- All diff operations with deep nesting

Known gap documented: self-referential forward refs (CategoryShape)
crash get_type_hints() at __init_subclass__ time. Needs deferred resolution.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-31 02:56:11 -04:00
Ryth Azhur
5a56d7a4a5 Update shapes tests for pk abstraction, strict Diff, and diff_many 
13 new tests covering three changes from claude.ai:
- pk abstraction: _pk_field resolved from model._meta, _get_pk helper
- Strict Diff.__getattr__: typos raise AttributeError with valid names,
  nested() method raises KeyError for explicit access
- diff_many: batched query (assertNumQueries(1)), mixed new/existing,
  empty list, all-new, nonexistent raises

38 shapes tests total, all passing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-31 02:25:27 -04:00
Ryth Azhur
a726fd6863 Add shapes module: Pydantic API surface for Django models 
Imported from separate development branch. Provides Shape, Diff, and
NestedDiff classes for defining typed Pydantic schemas backed by Django
model querysets via django-readers.

Optional dependency: install with djarea[shapes] to get django-readers.
Import is guarded so the rest of djarea works without it.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-31 01:53:20 -04:00