swoole-framwork/vendor/illuminate/database/Eloquent/Relations/MorphOne.php

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2024-05-20 11:51:07 +08:00
<?php
namespace Illuminate\Database\Eloquent\Relations;
use Illuminate\Contracts\Database\Eloquent\SupportsPartialRelations;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\Concerns\CanBeOneOfMany;
use Illuminate\Database\Eloquent\Relations\Concerns\ComparesRelatedModels;
use Illuminate\Database\Eloquent\Relations\Concerns\SupportsDefaultModels;
use Illuminate\Database\Query\JoinClause;
class MorphOne extends MorphOneOrMany implements SupportsPartialRelations
{
use CanBeOneOfMany, 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);
}
/**
* Get the relationship query.
*
* @param \Illuminate\Database\Eloquent\Builder $query
* @param \Illuminate\Database\Eloquent\Builder $parentQuery
* @param array|mixed $columns
* @return \Illuminate\Database\Eloquent\Builder
*/
public function getRelationExistenceQuery(Builder $query, Builder $parentQuery, $columns = ['*'])
{
if ($this->isOneOfMany()) {
$this->mergeOneOfManyJoinsTo($query);
}
return parent::getRelationExistenceQuery($query, $parentQuery, $columns);
}
/**
* Add constraints for inner join subselect for one of many relationships.
*
* @param \Illuminate\Database\Eloquent\Builder $query
* @param string|null $column
* @param string|null $aggregate
* @return void
*/
public function addOneOfManySubQueryConstraints(Builder $query, $column = null, $aggregate = null)
{
$query->addSelect($this->foreignKey, $this->morphType);
}
/**
* Get the columns that should be selected by the one of many subquery.
*
* @return array|string
*/
public function getOneOfManySubQuerySelectColumns()
{
return [$this->foreignKey, $this->morphType];
}
/**
* Add join query constraints for one of many relationships.
*
* @param \Illuminate\Database\Query\JoinClause $join
* @return void
*/
public function addOneOfManyJoinSubQueryConstraints(JoinClause $join)
{
$join
->on($this->qualifySubSelectColumn($this->morphType), '=', $this->qualifyRelatedColumn($this->morphType))
->on($this->qualifySubSelectColumn($this->foreignKey), '=', $this->qualifyRelatedColumn($this->foreignKey));
}
/**
* 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());
}
}