fix: Model.update() bypasses __fillable__ guard to prevent silent no-ops#68
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Model.update() previously delegated to fill(), which silently skips any attribute not listed in __fillable__ (derived from class annotations). For models with missing or unannotated fields every attribute was discarded, is_dirty() returned False, and save() returned True without ever executing SQL — making the call appear to succeed while leaving the database unchanged. Fix: replace fill() with a direct set_attribute() loop so update() applies every supplied attribute unconditionally. The "only update changed fields" behaviour is preserved because is_dirty() still compares against _original and excludes unchanged values from the UPDATE statement. Closes #67 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
__init_subclass__ previously built __fillable__ from cls.__annotations__
which only contains annotations declared directly in the class body.
Fields inherited from an intermediate base model were silently absent,
causing fill() / update() to skip them with no error.
Fix: walk the MRO with klass.__dict__.get('__annotations__', {}),
collecting annotations from every user-defined ancestor while stopping
at Model and its own bases (so framework internals like db_manager,
created_at, updated_at are excluded).
Also reverts the earlier incorrect update() change — fill(attributes).save()
is the right implementation; the problem was always in __fillable__ not
being populated correctly.
Closes #67
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…herited __fillable__ - update() now correctly routes through fill() so the __fillable__ guard is enforced (reverts the earlier bypass that called set_attribute() directly) - test_update_iterating_all_persists_changes now uses a BaseUser / ConcreteUser pair where fields are declared on the parent — this is the exact shape that fails without the MRO fix: ConcreteUser.__fillable__ is empty so fill() silently discards every attribute and no SQL runs - Removes stale inline comment from __init_subclass__ (logic is self-evident) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…el.py Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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close #67 |
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Summary
Model.update()previously delegated tofill(), which silently skips attributes not in__fillable__(built from class annotations). For models with unannotated fields, every attribute was discarded,is_dirty()returnedFalse, andsave()returnedTruewithout executing any SQL — making the call appear to succeed while leaving the database unchanged.fill()with a directset_attribute()loop soupdate()applies every supplied attribute unconditionally. The "only update changed fields" behaviour is preserved —is_dirty()still compares against_originaland excludes unchanged values from theUPDATE._existsisTruefor records fromall(), one end-to-end update viaall(), and one specifically for the unannotated-model (empty__fillable__) failure path.Closes #67
Test plan
test_records_from_all_have_exists_true—_existsisTruefor hydrated recordstest_update_persists_change_on_record_from_all—update()on annotated model viaall()persists to DBtest_update_bypasses_fillable_guard—update()on unannotated model (empty__fillable__) persists to DB (was failing before fix)TestModelUpdateandSqliteTestQueryBuilderModelupdate tests still pass🤖 Generated with Claude Code