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enforce element level hierarchy

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Yisroel Baum 2026-08-11 22:50:07 +03:00
parent 25495b6c4d
commit 99e1ba051c
Signed by: yisroelbaum
GPG key ID: 0FA60884F75520A9
5 changed files with 80 additions and 44 deletions
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91
backend/app/Element/EloquentElementRepository.php
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@ -3,27 +3,27 @@
namespace App\Element;
use App\Set\Set;
use App\Set\SetRepository;
use App\Set\SetLevel;
use App\Set\SetLevelRepository;
use DomainException;
use RuntimeException;
class EloquentElementRepository implements ElementRepository
{
public function __construct(
private SetRepository $setRepository,
private SetLevelRepository $setLevelRepository,
) {}
public function create(CreateElementDto $dto): Element
{
$this->validateParentSet($dto);
$this->validateLevel($dto);
$position = $this->nextPosition(
$dto->set,
$dto->level,
$dto->parentElement,
);
$model = ElementModel::create([
'set_id' => $dto->set->getId(),
'set_level_id' => $dto->level->getId(),
'name' => $dto->name,
'kind' => $dto->kind,
'parent_element_id' => $dto->parentElement?->getId(),
'position' => $position,
]);
@ -31,8 +31,7 @@ class EloquentElementRepository implements ElementRepository
return new Element(
id: $model->id,
name: $model->name,
kind: $model->kind,
set: $dto->set,
level: $dto->level,
parentElement: $dto->parentElement,
position: $model->position,
);
@ -47,14 +46,27 @@ class EloquentElementRepository implements ElementRepository
public function findBySet(Set $set): array
{
$levelsById = [];
foreach ($this->setLevelRepository->findBySet($set) as $level) {
$levelsById[$level->getId()] = $level;
}
if ($levelsById === []) {
return [];
}
$models = ElementModel::query()
->where('set_id', $set->getId())
->whereIn('set_level_id', array_keys($levelsById))
->orderBy('id')
->get();
$elements = [];
$elementsById = [];
foreach ($models as $model) {
$level = $levelsById[$model->set_level_id] ?? null;
if ($level === null) {
throw new RuntimeException('element level not found');
}
$parentElement = null;
if ($model->parent_element_id !== null) {
$parentElement = $elementsById[$model->parent_element_id]
@ -66,7 +78,7 @@ class EloquentElementRepository implements ElementRepository
$element = $this->toDomainWithRelations(
model: $model,
set: $set,
level: $level,
parentElement: $parentElement,
);
$elements[] = $element;
@ -78,8 +90,14 @@ class EloquentElementRepository implements ElementRepository
public function findTopLevelBySet(Set $set): array
{
$levels = $this->setLevelRepository->findBySet($set);
if ($levels === []) {
return [];
}
$topLevel = $levels[0];
$models = ElementModel::query()
->where('set_id', $set->getId())
->where('set_level_id', $topLevel->getId())
->whereNull('parent_element_id')
->orderBy('position')
->orderBy('id')
@ -89,7 +107,7 @@ class EloquentElementRepository implements ElementRepository
foreach ($models as $model) {
$elements[] = $this->toDomainWithRelations(
model: $model,
set: $set,
level: $topLevel,
parentElement: null,
);
}
@ -100,7 +118,6 @@ class EloquentElementRepository implements ElementRepository
public function findByParentElement(Element $parentElement): array
{
$models = ElementModel::query()
->where('set_id', $parentElement->getSet()->getId())
->where('parent_element_id', $parentElement->getId())
->orderBy('position')
->orderBy('id')
@ -108,9 +125,10 @@ class EloquentElementRepository implements ElementRepository
$elements = [];
foreach ($models as $model) {
$level = $this->findLevel($model->set_level_id);
$elements[] = $this->toDomainWithRelations(
model: $model,
set: $parentElement->getSet(),
level: $level,
parentElement: $parentElement,
);
}
@ -121,26 +139,44 @@ class EloquentElementRepository implements ElementRepository
/**
* @throws DomainException
*/
private function validateParentSet(CreateElementDto $dto): void
private function validateLevel(CreateElementDto $dto): void
{
$parentElement = $dto->parentElement;
if ($parentElement === null) {
if ($dto->level->getDepth() !== 0) {
throw new DomainException(
'root element must use the first set level',
);
}
return;
}
if ($parentElement->getSet()->getId() !== $dto->set->getId()) {
if (
$parentElement->getSet()->getId()
!== $dto->level->getSet()->getId()
) {
throw new DomainException(
'parent element must belong to the same set',
);
}
if (
$dto->level->getDepth()
!== $parentElement->getLevel()->getDepth() + 1
) {
throw new DomainException(
'child element must use the next set level',
);
}
}
private function nextPosition(
Set $set,
SetLevel $level,
?Element $parentElement,
): int {
$query = ElementModel::query()
->where('set_id', $set->getId());
->where('set_level_id', $level->getId());
if ($parentElement === null) {
$query->whereNull('parent_element_id');
} else {
@ -157,7 +193,7 @@ class EloquentElementRepository implements ElementRepository
private function toDomain(ElementModel $model): Element
{
$set = $this->findSet($model->set_id);
$level = $this->findLevel($model->set_level_id);
$parentElement = null;
if ($model->parent_element_id !== null) {
@ -169,33 +205,32 @@ class EloquentElementRepository implements ElementRepository
return $this->toDomainWithRelations(
model: $model,
set: $set,
level: $level,
parentElement: $parentElement,
);
}
private function toDomainWithRelations(
ElementModel $model,
Set $set,
SetLevel $level,
?Element $parentElement,
): Element {
return new Element(
id: $model->id,
name: $model->name,
kind: $model->kind,
set: $set,
level: $level,
parentElement: $parentElement,
position: $model->position,
);
}
private function findSet(int $id): Set
private function findLevel(int $id): SetLevel
{
$set = $this->setRepository->find($id);
if ($set !== null) {
return $set;
$level = $this->setLevelRepository->find($id);
if ($level !== null) {
return $level;
}
throw new RuntimeException('element set not found');
throw new RuntimeException('element level not found');
}
}