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>
Promote RFC-WS-6 to v1.1 with two §3 addenda capturing the post-session-2
cleanup decisions; align ARCH-BINDINGS.md §6.4 (Person provisioning)
with the v1.1 text. No architectural reversals — corrections + one
schema addition.
§3 Q8 v1.1 addendum — Person provisioning is scoped by `event_id`:
- Q8 v1.0 said `Person::firstOrCreate(['email', 'organisation_id'], ...)`.
That is incorrect against the actual model: `Person::$organisationScopeColumn`
is `event_id`. The provisioner looks up and creates by `(email, event_id)`.
- Same email registering across two events in the same org → two distinct
Person rows. Cross-event identity reconciliation remains the job of
`PersonIdentityService` (out of scope WS-6).
- Failsafe: `PersonProvisioningException('no_event', ...)` when
`submission.event_id` is null on event_registration; publish guard
`SchemaHasLinkedEvent` blocks at config time.
§3 Q9 v1.1 addendum — `form_schemas.default_crowd_type_id` replaces
`CrowdType::oldest()`:
- Session 2's PersonProvisioner used a silent oldest()-in-org heuristic
for the new Person's `crowd_type_id` (NOT NULL). Fragile, undocumented,
cross-org broken.
- v1.1 adds `form_schemas.default_crowd_type_id` (nullable ULID) as the
explicit, versioned schema attribute. `RequiresDefaultCrowdType` publish
guard wires into `EventRegistrationGuards`. Runtime failsafe in
`PersonProvisioner::resolveCrowdTypeId()` throws
`PersonProvisioningException('no_default_crowd_type', ...)` when null.
- Schema-level FK omitted intentionally (SQLite cascade-delete on
ALTER TABLE ADD FOREIGN KEY observed in WS-5b/c backfill tests).
Application-level integrity (publish guard + runtime failsafe +
Eloquent `belongsTo`) is sufficient because writes always go through
`FormSchemaService::publish()`.
- Snapshot impact: none. Provisioning reads from live FormSchema by
FK; audit replay uses whatever the schema's current
`default_crowd_type_id` is at retry time.
ARCH-BINDINGS.md §6.4:
- Now references "RFC Q8 + Q9, v1.1" in the heading.
- Default-crowd-type bullet replaces "first active CrowdType in the org"
(the session-2 oldest() heuristic) with the schema attribute lookup.
- Multi-tenancy paragraph clarified for cross-event scoping.
Cross-references touched up:
- `PersonProvisioner::resolveCrowdTypeId()` docblock: §3 Q8 → §3 Q9.
- `RequiresDefaultCrowdType` class docblock: §3 Q8 → §3 Q9.
- `SCHEMA.md` v2.7 changelog and `default_crowd_type_id` column note:
§3 Q8 → §3 Q9.
Document history entry added in §10 documenting v1.1 + the snapshot
dual-key cleanup and route-model-binding fix landed in earlier commits
on this branch.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Session 2's PersonProvisioner picked CrowdType::oldest() for the org —
silently wrong for multi-crowd_type orgs (Volunteer + Crew + Press are
three distinct crowd_types in one org). Schemas now declare their
target crowd_type explicitly via form_schemas.default_crowd_type_id.
RequiresDefaultCrowdType publish guard prevents misconfigured
event_registration schemas from publishing.
PersonProvisioner: oldest() fallback removed entirely. Misconfiguration
throws no_default_crowd_type at runtime; publish guard prevents it at
config time.
Migration uses a plain ulid() column without DB-level FK because
SQLite's table-rebuild on ALTER ADD FOREIGN KEY cascade-deletes
form_fields rows (form_fields.form_schema_id has cascadeOnDelete on
form_schemas). Application-level integrity via FormSchema::defaultCrowdType()
belongsTo + the publish guard + the runtime failsafe — three load-bearing
checks, none of which require the DB-level constraint.
Three pre-existing migration backfill tests bumped step counts +1 to
account for the new migration sitting between WS-5c and WS-5d:
FormFieldBindingMigrationTest (16→17, 14→15), FormFieldConfigBackfillAndDropTest
(11→12), FormFieldValidationRuleBackfillTest (14→15),
ConditionalLogicBackfillTest (5→6).
Six event_registration test fixtures updated to set default_crowd_type_id
to satisfy the new publish guard.
FormBuilderDevSeeder.resolveDefaultCrowdTypeId() — VOLUNTEER → first-active
→ create-as-needed fallback chain; documented contract for future seeders.
SCHEMA.md updated to v2.7.
Refs: RFC-WS-6.md v1.1 §3 Q8 addendum (Task 4 of this session)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
PersonProvisioner reads bindings from schema_snapshot (RFC Q6) and
provisions Persons via lockForUpdate + firstOrCreate (RFC Q8).
Person is event-scoped (Person::$organisationScopeColumn = 'event_id'),
so the lookup matches by (email, event_id) — cross-event submissions
never collide.
Throws PersonProvisioningException on misconfiguration (failsafe —
publish guards should prevent these at config time): no_transaction,
no_event, no_identity_key, identity_key_missing_value, no_crowd_type.
Snapshot enrichment: FormFieldBindingService::toApplicatorShape +
FormSubmissionService snapshot now adds a 'bindings' (plural) key with
binding id, merge_strategy, trust_level, is_identity_key. Singular
'binding' key kept for legacy webhook / GDPR readers.
Includes RFC V4 state-injection concurrency test asserting recovery
semantics under lockForUpdate windows.
Refs: RFC-WS-6.md §3 (Q6, Q8), §4 (V4)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
