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implement multi relation loading

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Bence Pőcze 2023-06-17 11:53:46 +02:00
parent 8d490e48aa
commit 87c9c991f4
Signed by: bence
GPG Key ID: DC5BD6E95A333E6D
2 changed files with 36 additions and 0 deletions
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2
src/PersistentData/Model/Model.php
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@ -8,6 +8,8 @@ abstract class Model
protected static array $relations = [];
protected static array $multiRelations = [];
protected $id = null;
private array $snapshot = [];

34
src/PersistentData/PersistentDataManager.php
View File

@ -92,6 +92,40 @@ class PersistentDataManager implements IPersistentDataManager
}
}
public function loadMultiRelationsFromDb(array $models, string $relation, bool $useRelations = false, array $withRelations = []) {
if (count($models) === 0) {
return;
}
$parentModelType = get_class($models[0]);
$relationModelsSetter = 'set' . str_replace('_', '', ucwords($relation, '_'));
$relationModelType = $parentModelType::$multiRelations[$relation][0];
$reverseRelation = $parentModelType::$multiRelations[$relation][1];
$reverseRelationIdGetter = 'get' . str_replace('_', '', ucwords($reverseRelation, '_')) . 'Id';
$parentModelsById = [];
foreach ($models as $model) {
$parentModelsById[$model->getId()] = $model;
}
$select = new Select($this->dbConnection);
$select->where($reverseRelation . '_id', 'IN', array_keys($parentModelsById));
$relationsByParentModelId = [];
foreach ($this->selectMultipleFromDb($select, $relationModelType, $useRelations, $withRelations) as $relationModel) {
$reverseRelationId = $relationModel->$reverseRelationIdGetter();
if (!isset($relationsByParentModelId[$reverseRelationId])) {
$relationsByParentModelId[$reverseRelationId] = [];
}
$relationsByParentModelId[$reverseRelationId][] = $relationModel;
}
foreach ($parentModelsById as $parentModelId => $parentModel) {
$relationModels = $relationsByParentModelId[$parentModelId] ?? [];
$parentModel->$relationModelsSetter($relationModels);
}
}
public function saveToDb(Model $model): void
{
$this->syncRelations($model);