78 lines
2.0 KiB
PHP
78 lines
2.0 KiB
PHP
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<?php
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namespace Illuminate\Database\Eloquent\Relations\Concerns;
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use Illuminate\Contracts\Database\Eloquent\SupportsPartialRelations;
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use Illuminate\Database\Eloquent\Model;
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trait ComparesRelatedModels
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{
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/**
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* Determine if the model is the related instance of the relationship.
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*
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* @param \Illuminate\Database\Eloquent\Model|null $model
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* @return bool
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*/
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public function is($model)
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{
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$match = ! is_null($model) &&
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$this->compareKeys($this->getParentKey(), $this->getRelatedKeyFrom($model)) &&
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$this->related->getTable() === $model->getTable() &&
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$this->related->getConnectionName() === $model->getConnectionName();
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if ($match && $this instanceof SupportsPartialRelations && $this->isOneOfMany()) {
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return $this->query
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->whereKey($model->getKey())
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->exists();
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}
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return $match;
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}
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/**
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* Determine if the model is not the related instance of the relationship.
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*
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* @param \Illuminate\Database\Eloquent\Model|null $model
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* @return bool
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*/
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public function isNot($model)
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{
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return ! $this->is($model);
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}
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/**
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* Get the value of the parent model's key.
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*
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* @return mixed
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*/
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abstract public function getParentKey();
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/**
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* Get the value of the model's related key.
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*
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* @param \Illuminate\Database\Eloquent\Model $model
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* @return mixed
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*/
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abstract protected function getRelatedKeyFrom(Model $model);
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/**
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* Compare the parent key with the related key.
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*
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* @param mixed $parentKey
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* @param mixed $relatedKey
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* @return bool
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*/
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protected function compareKeys($parentKey, $relatedKey)
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{
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if (empty($parentKey) || empty($relatedKey)) {
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return false;
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}
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if (is_int($parentKey) || is_int($relatedKey)) {
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return (int) $parentKey === (int) $relatedKey;
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}
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return $parentKey === $relatedKey;
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}
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}
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