bert.hausmans
fe686b7c8d
The original session 2.5 migration had to omit this FK due to an SQLite-only "rebuild on FK add" cascade-delete quirk. Now that the test infrastructure has moved to MySQL (Task 1 of this session), the quirk does not apply and the FK is restored to match every other FK in this table. Changes: - New migration `2026_04_28_100000_restore_default_crowd_type_id_foreign_key` adds a FOREIGN KEY (default_crowd_type_id) REFERENCES crowd_types(id) ON DELETE SET NULL. Deleting a CrowdType nulls the column on dependent schemas instead of cascading the schema delete. - Original migration's comment block rewritten — the SQLite-quirk rationale was demonstrably misleading; replaced with a forward-looking pointer to the FK-restore migration. - PersonProvisioner::resolveCrowdTypeId() docblock updated: the runtime failsafe is now defense in depth alongside the DB-level FK + publish guard, not the sole load-bearing check. New test (`DefaultCrowdTypeForeignKeyTest`) exercises both the ON-DELETE-SET-NULL cascade and the existence of the FK in information_schema.REFERENTIAL_CONSTRAINTS — the second assertion would have been impossible on SQLite, which is exactly the point. Migration step counts in 5 backfill tests bumped +1 because the FK- restore migration sits at the top of the migration stack: - FormFieldBindingMigrationTest: 17→18, 15→16 - ConditionalLogicBackfillTest: 6→7 - FormFieldConfigBackfillAndDropTest: 12→13 - FormFieldOptionsBackfillTest: 2→3 - FormFieldValidationRuleBackfillTest: 15→16 All 1388 tests pass on MySQL (1386 prior + 2 new FK tests). Larastan baseline unchanged. Refs: RFC-WS-6.md v1.1 §3 Q9 addendum, WS-6 session 2.5 deviation #1 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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