Deferred from the form-controls view-dispatch cycle (spec: docs/superpowers/specs/2026-07-18-form-controls-view-dispatch-design.md).
A generated form's blank optional scalar inputs submit "" (empty string). For a nullable date/timestamp column this is invalid, and a != null check misreads "" as "set". A downstream implementation worked around this by deleting ""-valued keys from the submit payload. That fix was not promoted because it conflicts with FR-035 present-key PATCH tristate: deleting a cleared field's key means "untouched", so on the edit/PATCH path clearing a previously-set optional field silently fails to clear it.
The correct behavior is tristate-aware and needs create-vs-edit + dirty-state awareness:
- blank on CREATE → omit the key (or send
null) so the column defaults/NULLs,
- a field that was set and is now cleared on EDIT → send explicit
null (present-null clears),
- a
@required field left untouched → unchanged.
Scope: the generated form's submit handler in codegen-ts-react (and its React runtime binding). Until this lands, the promoted form template inherits the pre-existing ""-vs-NULL wart for blank optional date/timestamp inputs on CREATE.
Deferred from the form-controls view-dispatch cycle (spec:
docs/superpowers/specs/2026-07-18-form-controls-view-dispatch-design.md).A generated form's blank optional scalar inputs submit
""(empty string). For a nullable date/timestamp column this is invalid, and a!= nullcheck misreads""as "set". A downstream implementation worked around this by deleting""-valued keys from the submit payload. That fix was not promoted because it conflicts with FR-035 present-key PATCH tristate: deleting a cleared field's key means "untouched", so on the edit/PATCH path clearing a previously-set optional field silently fails to clear it.The correct behavior is tristate-aware and needs create-vs-edit + dirty-state awareness:
null) so the column defaults/NULLs,null(present-null clears),@requiredfield left untouched → unchanged.Scope: the generated form's submit handler in
codegen-ts-react(and its React runtime binding). Until this lands, the promoted form template inherits the pre-existing""-vs-NULL wart for blank optional date/timestamp inputs on CREATE.