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<?php |
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namespace Mpyw\EloquentHasByNonDependentSubquery; |
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use DomainException; |
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use Illuminate\Database\Eloquent\Relations\BelongsTo; |
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use Illuminate\Database\Eloquent\Relations\BelongsToMany; |
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use Illuminate\Database\Eloquent\Relations\HasManyThrough; |
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use Illuminate\Database\Eloquent\Relations\HasOneOrMany; |
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use Illuminate\Database\Eloquent\Relations\MorphOneOrMany; |
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use Illuminate\Database\Eloquent\Relations\MorphTo; |
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use Illuminate\Database\Eloquent\Relations\MorphToMany; |
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use Illuminate\Database\Eloquent\Relations\Relation; |
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/** |
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* Class Keys |
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*/ |
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class Keys |
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{ |
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/** |
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* @var \Illuminate\Database\Eloquent\Builder |
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*/ |
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protected $query; |
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/** |
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* @var string |
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*/ |
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protected $sourceKeyName; |
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/** |
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* @var string |
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*/ |
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protected $relatedKeyName; |
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/** |
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* @var null|string |
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*/ |
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protected $relatedMorphType; |
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/** |
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* @var null|string |
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*/ |
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protected $relatedMorphClass; |
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/** |
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* Keys constructor. |
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* |
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* @param Relation $relation |
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*/ |
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public function __construct(Relation $relation) |
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{ |
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if ($relation instanceof HasOneOrMany) { |
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$this->sourceKeyName = $this->ensureString($relation->getQualifiedParentKeyName()); |
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$this->relatedKeyName = $this->ensureString($relation->getQualifiedForeignKeyName()); |
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if ($relation instanceof MorphOneOrMany) { |
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$this->relatedMorphType = $relation->getQualifiedMorphType(); |
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$this->relatedMorphClass = $relation->getMorphClass(); |
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} |
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return; |
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} |
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if ($relation instanceof BelongsTo && !$relation instanceof MorphTo) { |
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$this->sourceKeyName = $this->ensureString($relation->getQualifiedForeignKeyName()); |
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$this->relatedKeyName = $this->ensureString($relation->getQualifiedOwnerKeyName()); |
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return; |
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} |
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if ($relation instanceof BelongsToMany) { |
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$this->sourceKeyName = $this->ensureString($relation->getQualifiedParentKeyName()); |
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$this->relatedKeyName = $this->ensureString($relation->getQualifiedForeignPivotKeyName()); |
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if ($relation instanceof MorphToMany) { |
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$this->relatedMorphType = "{$relation->getTable()}.{$relation->getMorphType()}"; |
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$this->relatedMorphClass = $relation->getMorphClass(); |
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} |
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return; |
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} |
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if ($relation instanceof HasManyThrough) { |
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$this->sourceKeyName = $this->ensureString($relation->getQualifiedLocalKeyName()); |
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$this->relatedKeyName = $this->ensureString($relation->getQualifiedFirstKeyName()); |
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return; |
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} |
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throw new DomainException('Unsupported relation. Currently supported: HasOne, HasMany, BelongsTo, BelongsToMany, HasManyThrough, HasOneThrough, MorphOne, MorphMany and MorphToMany'); |
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} |
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/** |
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* Ensure the provided key is single. |
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* |
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* @param mixed $key |
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* @return string |
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*/ |
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protected function ensureString($key): string |
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{ |
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if (is_array($key)) { |
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throw new DomainException('Multi-column relationships are not supported.'); |
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} |
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return (string)$key; |
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} |
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/** |
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* @return string |
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*/ |
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public function getQualifiedSourceKeyName(): string |
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{ |
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return $this->sourceKeyName; |
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} |
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/** |
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* @return string |
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*/ |
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public function getQualifiedRelatedKeyName(): string |
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{ |
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return $this->relatedKeyName; |
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} |
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/** |
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* @return null|string |
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*/ |
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3 |
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public function getQualifiedRelatedMorphType(): ?string |
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{ |
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return $this->relatedMorphType; |
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} |
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/** |
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* @return null|string |
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*/ |
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3 |
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public function getRelatedMorphClass(): ?string |
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{ |
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return $this->relatedMorphClass; |
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} |
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/** |
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* @return bool |
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*/ |
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public function needsPolymorphicRelatedConstraints(): bool |
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{ |
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return (bool)$this->relatedMorphClass; |
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} |
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} |
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