Adminator
fb44ec7afe
student_id-FK-Migration Stufe 1+2: Name-Joins -> student_sessions.student_id
- student_sessions: neue Spalte student_id (+Index), backfilled aus (class_id,display_name)
- Session::createStudent setzt student_id (per Lookup, falls nicht uebergeben)
- alle Joins students<->student_sessions von display_name auf student_id umgestellt:
Benchmark.php, live.php (5x), results.php (4x + runs), modules.php, profile.php, progress.php (answers+runs)
- verlustfrei verifiziert (alt-Join == neu-Join, class 99/102)
Robuster gegen Umbenennung/Doppelnamen, indexierbare Joins.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-15 19:16:41 +02:00
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