Viewing file:  MorphOne.php (2.18 KB) -rw-r--r--
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<?php
namespace Illuminate\Database\Eloquent\Relations;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\Concerns\ComparesRelatedModels;
use Illuminate\Database\Eloquent\Relations\Concerns\SupportsDefaultModels;
class MorphOne extends MorphOneOrMany
{
use ComparesRelatedModels, SupportsDefaultModels;
/**
* Get the results of the relationship.
*
* @return mixed
*/
public function getResults()
{
if (is_null($this->getParentKey())) {
return $this->getDefaultFor($this->parent);
}
return $this->query->first() ?: $this->getDefaultFor($this->parent);
}
/**
* Initialize the relation on a set of models.
*
* @param array $models
* @param string $relation
* @return array
*/
public function initRelation(array $models, $relation)
{
foreach ($models as $model) {
$model->setRelation($relation, $this->getDefaultFor($model));
}
return $models;
}
/**
* Match the eagerly loaded results to their parents.
*
* @param array $models
* @param \Illuminate\Database\Eloquent\Collection $results
* @param string $relation
* @return array
*/
public function match(array $models, Collection $results, $relation)
{
return $this->matchOne($models, $results, $relation);
}
/**
* Make a new related instance for the given model.
*
* @param \Illuminate\Database\Eloquent\Model $parent
* @return \Illuminate\Database\Eloquent\Model
*/
public function newRelatedInstanceFor(Model $parent)
{
return $this->related->newInstance()
->setAttribute($this->getForeignKeyName(), $parent->{$this->localKey})
->setAttribute($this->getMorphType(), $this->morphClass);
}
/**
* Get the value of the model's foreign key.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return mixed
*/
protected function getRelatedKeyFrom(Model $model)
{
return $model->getAttribute($this->getForeignKeyName());
}
}
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