M1: CRUD-Slice 'Mahlzeit' Schritt 1 – Logik + Daten + Tests
Rich-Model Mahlzeit (MahlzeitStatus, Wochentag) mit Invarianten und Zustandsübergängen; DTOs + MahlzeitFactory (reine Mapping-Funktionen); Manager (create hängt an Ende an: maxSortOrder+1, find → 404) und Create/Update/Delete-UseCases mit Transaktion + Events nach Commit. Data-Layer: MahlzeitEntity (Tabelle essens_mahlzeiten, wochentage als CSV), Mapper (CSV/Enum/null), Provider (find/list/maxSortOrder), Processor (create/save/delete). DI-Bindings in services.yaml. ClockInterface (Logic) + SystemClock (Data). Tests: Model/Factory/UseCase-Unit + Provider/Processor/Mapper-Integration (In-Mem-SQLite). composer test grün (53 Tests, 161 Assertions).
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<?php
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declare(strict_types=1);
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namespace App\Logic\Essen\Manager;
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use App\Logic\Essen\Exception\MahlzeitNotFoundException;
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use App\Logic\Essen\MahlzeitProviderInterface;
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use App\Logic\Essen\MahlzeitProcessorInterface;
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use App\Logic\Essen\Model\Mahlzeit;
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use App\Logic\Essen\Model\MahlzeitStatus;
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/**
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* Standard-Implementierung: kombiniert Provider (Read) + Processor (Write).
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*
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* @see MahlzeitManagerInterface
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*/
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final class MahlzeitManager implements MahlzeitManagerInterface
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{
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public function __construct(
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private readonly MahlzeitProviderInterface $provider,
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private readonly MahlzeitProcessorInterface $processor,
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) {
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}
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public function create(Mahlzeit $mahlzeit): Mahlzeit
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{
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$mahlzeit = $mahlzeit->mitSortOrder($this->provider->maxSortOrder() + 1);
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return $this->processor->create($mahlzeit);
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}
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public function update(Mahlzeit $mahlzeit): Mahlzeit
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{
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return $this->processor->save($mahlzeit);
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}
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public function delete(int $id): void
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{
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$this->find($id);
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$mahlzeit = $this->provider->find($id);
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if ($mahlzeit !== null) {
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$this->processor->delete($mahlzeit);
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}
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}
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public function find(int $id): Mahlzeit
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{
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return $this->provider->find($id) ?? throw new MahlzeitNotFoundException($id);
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}
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/** @return list<Mahlzeit> */
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public function list(?MahlzeitStatus $status = null): array
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{
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return $this->provider->list($status);
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}
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}
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