Closes the WS-5 family follow-up tracked as
FORM-BUILDER-MORPH-SCOPE-BASE-CLASS in BACKLOG.md. Per addendum
§Q3 Uitvoering across WS-5a/b/c/d, base-class extraction was
deliberately deferred until all four concrete morph-scope siblings
existed and the "what actually varies" question could be answered
empirically.
The answer is: nothing. All four siblings —
FormFieldBindingScope (WS-5a), FormFieldValidationRuleScope (WS-5b),
FormFieldConfigScope (WS-5b commit 5), and FormFieldOptionScope
(WS-5d) — are byte-equal in their apply() and resolveOrganisationId()
methods (Phase A diff verification clean: zero lines diverging
across all three pairwise comparisons).
Approach:
- New abstract class FormFieldChildTableMorphScope holds the full
UNION-over-two-owner-chains scope logic with the morph alias
literals extracted as private constants
(OWNER_TYPE_FIELD, OWNER_TYPE_LIBRARY) for one-location-of-truth.
- The four concrete scopes become marker subclasses
(`final class X extends FormFieldChildTableMorphScope {}`) — class
identity preserved so every existing
`withoutGlobalScope(FormFieldXScope::class)` call site in cascade
observers, backfill migrations, and platform super_admin paths
continues to work unchanged. The 4 test call sites (in the four
*ScopeTest classes) work without modification.
- Helper visibility stays `private` per YAGNI. If a future sibling
needs to vary the morph aliases or owner-chain, the helpers
promote to `protected` at that point.
- Stylistic refinement vs. the four originals: `Organisation` and
`Event` in resolveOrganisationId() now use `use` statements at
the top of the file instead of inline `\App\Models\…` FQNs.
Net diff:
Pre: 4 concrete scope files at ~106 lines each (~424 lines total)
Post: 4 marker subclasses at 20 lines (80 total) +
1 abstract base at 125 lines = 205 lines total
Saving: ~219 lines of duplication removed.
Tests: 1208 passed (3260 assertions) → 1208 passed (3260 assertions).
Identical — public behaviour unchanged.
Larastan: clean (no new errors beyond baseline).
Rector: 357 → 355 dry-run suggestions (small reduction from the
deduplication; no apply in this commit).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>