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<?php |
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namespace Volosyuk\SimpleEloquent\Relations; |
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use Illuminate\Database\Eloquent\Relations\BelongsTo as BaseBelongsTo; |
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use Illuminate\Support\Collection; |
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use Volosyuk\SimpleEloquent\ModelAccessor; |
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/** |
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* Class BelongsToWithSimple |
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* @package Volosyuk\SimpleEloquent |
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*/ |
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class BelongsTo extends BaseBelongsTo |
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{ |
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use Relation; |
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/** |
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* Match the eagerly loaded results to their parents. |
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* |
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* @param array $models |
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* @param Collection $results |
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* @param string $relation |
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* @return array |
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*/ |
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protected function matchSimple(array $models, Collection $results, $relation) |
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{ |
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$foreign = $this->foreignKey; |
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$other = $this->ownerKey; |
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$dictionary = []; |
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foreach ($results as $result) { |
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$dictionary[ModelAccessor::get($result, $other)] = $result; |
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} |
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foreach ($models as &$model) { |
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if (isset($dictionary[ModelAccessor::get($model, $foreign)])) { |
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ModelAccessor::set($model, $relation, $dictionary[ModelAccessor::get($model, $foreign)]); |
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} |
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} |
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unset($model); |
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return $models; |
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} |
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/** |
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* Set the constraints for an eager load of the relation. |
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* |
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* @param array $models |
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* @return void |
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*/ |
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public function addEagerConstraintsSimple(array $models) |
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{ |
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$key = $this->related->getTable().'.'.$this->ownerKey; |
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$this->query->whereIn($key, $this->getEagerModelKeysSimple($models)); |
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} |
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/** |
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* Gather the keys from an array of related models. |
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* |
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* @param array $models |
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* @return array |
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*/ |
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protected function getEagerModelKeysSimple(array $models) |
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{ |
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$keys = []; |
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foreach ($models as $model) { |
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if (! is_null($value = ModelAccessor::get($model, $this->foreignKey))) { |
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$keys[] = $value; |
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} |
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} |
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if (count($keys) === 0) { |
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return [$this->related->getIncrementing() && |
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$this->related->getKeyType() === 'int' ? 0 : null, ]; |
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} |
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return array_values(array_unique($keys)); |
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} |
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} |
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andreyvolosyuk /
simple-eloquent
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