75 lines
2.5 KiB
PHP
75 lines
2.5 KiB
PHP
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<?php
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namespace Illuminate\Database\Eloquent\Relations;
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use Illuminate\Database\Eloquent\Builder;
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use Illuminate\Database\Eloquent\Collection as EloquentCollection;
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use Illuminate\Database\Eloquent\Relations\Concerns\InteractsWithDictionary;
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/**
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* @template TRelatedModel of \Illuminate\Database\Eloquent\Model
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* @template TIntermediateModel of \Illuminate\Database\Eloquent\Model
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* @template TDeclaringModel of \Illuminate\Database\Eloquent\Model
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*
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* @extends \Illuminate\Database\Eloquent\Relations\HasOneOrManyThrough<TRelatedModel, TIntermediateModel, TDeclaringModel, \Illuminate\Database\Eloquent\Collection<int, TRelatedModel>>
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*/
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class HasManyThrough extends HasOneOrManyThrough
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{
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use InteractsWithDictionary;
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/**
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* Convert the relationship to a "has one through" relationship.
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*
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* @return \Illuminate\Database\Eloquent\Relations\HasOneThrough<TRelatedModel, TIntermediateModel, TDeclaringModel>
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*/
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public function one()
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{
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return HasOneThrough::noConstraints(fn () => new HasOneThrough(
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tap($this->getQuery(), fn (Builder $query) => $query->getQuery()->joins = []),
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$this->farParent,
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$this->throughParent,
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$this->getFirstKeyName(),
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$this->secondKey,
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$this->getLocalKeyName(),
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$this->getSecondLocalKeyName(),
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));
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}
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/** @inheritDoc */
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public function initRelation(array $models, $relation)
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{
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foreach ($models as $model) {
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$model->setRelation($relation, $this->related->newCollection());
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}
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return $models;
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}
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/** @inheritDoc */
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public function match(array $models, EloquentCollection $results, $relation)
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{
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$dictionary = $this->buildDictionary($results);
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// Once we have the dictionary we can simply spin through the parent models to
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// link them up with their children using the keyed dictionary to make the
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// matching very convenient and easy work. Then we'll just return them.
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foreach ($models as $model) {
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if (isset($dictionary[$key = $this->getDictionaryKey($model->getAttribute($this->localKey))])) {
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$model->setRelation(
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$relation, $this->related->newCollection($dictionary[$key])
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);
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}
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}
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return $models;
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}
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/** @inheritDoc */
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public function getResults()
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{
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return ! is_null($this->farParent->{$this->localKey})
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? $this->get()
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: $this->related->newCollection();
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}
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}
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