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| Name | Lines | Functions and Methods | CRAP | Classes and Traits | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| HasOneThrough | 100.00% | 27 / 27 | 100.00% | 4 / 4 | 16 | 100.00% | 1 / 1 | |||
| addConstraints | 100.00% | 4 / 4 | 100.00% | 1 / 1 | 3 | |||||
| executeResults | 100.00% | 2 / 2 | 100.00% | 1 / 1 | 2 | |||||
| applyEagerOrdering | 100.00% | 4 / 4 | 100.00% | 1 / 1 | 3 | |||||
| match | 100.00% | 17 / 17 | 100.00% | 1 / 1 | 8 | |||||
| 1 | <?php | |
| 2 | ||
| 3 | declare(strict_types=1); | |
| 4 | ||
| 5 | namespace BlueprintAU\Radiant\Relations; | |
| 6 | ||
| 7 | use BlueprintAU\Radiant\Collection; | |
| 8 | use BlueprintAU\Radiant\Metadata\MetadataFactory; | |
| 9 | use BlueprintAU\Radiant\Model; | |
| 10 | use BlueprintAU\Radiant\ModelQueryBuilder; | |
| 11 | ||
| 12 | /** | |
| 13 | * One-to-one through an intermediate model. | |
| 14 | * | |
| 15 | * Same join shape as {@see HasManyThrough}; the results reduce to one row | |
| 16 | * per parent (the first match per parent key from the eager query, stably | |
| 17 | * ordered by the related PK — the uniqueness contract is the schema's job, | |
| 18 | * mirroring {@see HasOne}). | |
| 19 | * | |
| 20 | * @template TRelated of Model | |
| 21 | * @extends HasManyThrough<TRelated> | |
| 22 | */ | |
| 23 | final class HasOneThrough extends HasManyThrough | |
| 24 | { | |
| 25 | /** | |
| 26 | * Constrain the related query, stably ordered by the related PK — the | |
| 27 | * first-row guarantee for the lazy path. | |
| 28 | * | |
| 29 | * @return void | |
| 30 | */ | |
| 31 | protected function addConstraints(): void | |
| 32 | { | |
| 33 | parent::addConstraints(); | |
| 34 | ||
| 35 | $primaryKeys = MetadataFactory::for($this->related)->primaryKeys; | |
| 36 | ||
| 37 | if (count($primaryKeys) === 1 && $primaryKeys[0]->name !== null) { | |
| 38 | $this->query = $this->query->orderBy($primaryKeys[0]->name); | |
| 39 | } | |
| 40 | } | |
| 41 | ||
| 42 | /** | |
| 43 | * Run the constrained query and keep only the first match. | |
| 44 | * | |
| 45 | * @return Collection<int, TRelated> | |
| 46 | */ | |
| 47 | #[\Override] | |
| 48 | protected function executeResults(): Collection | |
| 49 | { | |
| 50 | $first = $this->query->first(); | |
| 51 | ||
| 52 | return Collection::make($first === null ? [] : [$first]); | |
| 53 | } | |
| 54 | ||
| 55 | /** | |
| 56 | * Order the eager-load query stably, mirroring the lazy path. | |
| 57 | * | |
| 58 | * @param ModelQueryBuilder<TRelated> $query | |
| 59 | * @return ModelQueryBuilder<TRelated> | |
| 60 | */ | |
| 61 | protected function applyEagerOrdering(ModelQueryBuilder $query): ModelQueryBuilder | |
| 62 | { | |
| 63 | $primaryKeys = MetadataFactory::for($this->related)->primaryKeys; | |
| 64 | ||
| 65 | if (count($primaryKeys) === 1 && $primaryKeys[0]->name !== null) { | |
| 66 | $query = $query->orderBy($primaryKeys[0]->name); | |
| 67 | } | |
| 68 | ||
| 69 | return $query; | |
| 70 | } | |
| 71 | ||
| 72 | /** | |
| 73 | * Distribute eager results — first match per parent key. | |
| 74 | * | |
| 75 | * @param list<Model> $parents | |
| 76 | * @param Collection<int, TRelated> $results | |
| 77 | * @param string $name | |
| 78 | * @param list<int|string|null|list<int|string|null>>|null $eagerParentKeys | |
| 79 | * @return void | |
| 80 | */ | |
| 81 | public function match(array $parents, Collection $results, string $name, ?array $eagerParentKeys = null): void | |
| 82 | { | |
| 83 | if ($eagerParentKeys === null) { | |
| 84 | throw new \LogicException( | |
| 85 | static::class . '::match() requires the EagerResult parent keys; ' | |
| 86 | . 'call it with the array returned by eagerLoad(), not the models alone.' | |
| 87 | ); | |
| 88 | } | |
| 89 | ||
| 90 | $first = []; | |
| 91 | ||
| 92 | foreach ($results as $i => $model) { | |
| 93 | $parentKey = $eagerParentKeys[$i] ?? null; | |
| 94 | ||
| 95 | if ($parentKey === null || isset($first[self::serializeKey($parentKey)])) { | |
| 96 | continue; | |
| 97 | } | |
| 98 | ||
| 99 | $first[self::serializeKey($parentKey)] = $model; | |
| 100 | } | |
| 101 | ||
| 102 | $localKeys = $this->isComposite() ? $this->getLocalKeys() : [$this->getLocalKey()]; | |
| 103 | ||
| 104 | foreach ($parents as $parent) { | |
| 105 | $key = $this->isComposite() | |
| 106 | ? self::tupleValues($parent, $localKeys) | |
| 107 | : $parent->attribute($localKeys[0]); | |
| 108 | $parent->setRelation($name, $first[self::serializeKey($key)] ?? null); | |
| 109 | } | |
| 110 | } | |
| 111 | } |