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<?php |
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/** |
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* Quantum PHP Framework |
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* |
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* An open source software development framework for PHP |
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* |
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* @package Quantum |
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* @author Arman Ag. <[email protected]> |
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* @copyright Copyright (c) 2018 Softberg LLC (https://softberg.org) |
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* @link http://quantum.softberg.org/ |
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* @since 2.9.9 |
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*/ |
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namespace Quantum\Libraries\Database\Adapters\Sleekdb\Statements; |
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use Quantum\Libraries\Database\Adapters\Sleekdb\SleekDbal; |
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use Quantum\Libraries\Database\Contracts\DbalInterface; |
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use SleekDB\Exceptions\InvalidArgumentException; |
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use Quantum\Libraries\Database\Enums\Relation; |
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use Quantum\Model\Exceptions\ModelException; |
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use Quantum\Model\QtModel; |
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use SleekDB\QueryBuilder; |
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/** |
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* Trait Join |
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* @package Quantum\Libraries\Database |
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*/ |
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trait Join |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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public function joinTo(QtModel $model, bool $switch = true): DbalInterface |
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{ |
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$this->joins[] = [ |
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'model' => serialize($model), |
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'switch' => $switch, |
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]; |
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return $this; |
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} |
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/** |
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* Starts to apply joins |
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* @throws ModelException |
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*/ |
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private function applyJoins() |
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{ |
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if (!empty($this->joins)) { |
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$this->applyJoin($this->queryBuilder, $this, $this->joins[0]); |
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} |
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} |
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/** |
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* Apply the join to query builder |
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* @param QueryBuilder $queryBuilder |
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* @param SleekDbal $currentItem |
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* @param array $nextItem |
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* @param int $level |
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* @return QueryBuilder |
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* @throws ModelException |
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*/ |
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private function applyJoin(QueryBuilder $queryBuilder, SleekDbal $currentItem, array $nextItem, int $level = 1): QueryBuilder |
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{ |
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$modelToJoin = unserialize($nextItem['model']); |
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$switch = $nextItem['switch']; |
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$queryBuilder->join(function ($item) use ($currentItem, $modelToJoin, $switch, $level) { |
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$sleekModel = new self( |
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$modelToJoin->table, |
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get_class($modelToJoin), |
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$modelToJoin->idColumn, |
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$modelToJoin->relations() |
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); |
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$newQueryBuilder = $sleekModel->getOrmModel()->createQueryBuilder(); |
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$this->applyJoinTo($newQueryBuilder, $modelToJoin, $currentItem, $item); |
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if ($switch && isset($this->joins[$level])) { |
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$this->applyJoin($newQueryBuilder, $sleekModel, $this->joins[$level], $level + 1); |
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} |
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return $newQueryBuilder; |
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}, $modelToJoin->table); |
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if (!$switch && isset($this->joins[$level])) { |
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$this->applyJoin($queryBuilder, $currentItem, $this->joins[$level], $level + 1); |
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} |
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return $queryBuilder; |
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} |
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/** |
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* Apply join condition for JOINTO type |
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* @param QueryBuilder $queryBuilder |
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* @param QtModel $relatedModel |
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* @param SleekDbal $currentModel |
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* @param array $currentItem |
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* @return void |
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* @throws InvalidArgumentException |
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* @throws ModelException |
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*/ |
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private function applyJoinTo(QueryBuilder $queryBuilder, QtModel $relatedModel, SleekDbal $currentModel, array $currentItem): void |
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{ |
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$relation = $this->getValidatedRelation($currentModel, $relatedModel); |
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switch ($relation['type']) { |
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case Relation::HAS_ONE: |
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case Relation::HAS_MANY: |
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$this->applyHasRelation($queryBuilder, $currentItem, $relation); |
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break; |
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case Relation::BELONGS_TO: |
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$this->applyBelongsTo($queryBuilder, $currentItem, $relation, $currentModel); |
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break; |
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default: |
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throw ModelException::unsupportedRelationType($relation['type']); |
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} |
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} |
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/** |
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* @param QueryBuilder $queryBuilder |
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* @param array $currentItem |
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* @param array $relation |
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* @return void |
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* @throws InvalidArgumentException |
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*/ |
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private function applyHasRelation(QueryBuilder $queryBuilder, array $currentItem, array $relation): void |
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{ |
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$queryBuilder->where([ |
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$relation['foreign_key'], |
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'=', |
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$currentItem[$relation['local_key']] |
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]); |
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} |
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/** |
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* @param QueryBuilder $queryBuilder |
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* @param array $currentItem |
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* @param array $relation |
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* @param SleekDbal $currentModel |
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* @return void |
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* @throws InvalidArgumentException |
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* @throws ModelException |
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*/ |
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private function applyBelongsTo(QueryBuilder $queryBuilder, array $currentItem, array $relation, SleekDbal $currentModel): void |
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{ |
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if (!isset($currentItem[$relation['foreign_key']])) { |
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throw ModelException::missingForeignKeyValue($currentModel->getModelName(), $relation['foreign_key']); |
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} |
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$queryBuilder->where([ |
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$relation['local_key'], |
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'=', |
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$currentItem[$relation['foreign_key']] |
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]); |
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} |
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/** |
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* @param SleekDbal $currentModel |
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* @param QtModel $relatedModel |
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* @return array |
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* @throws ModelException |
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*/ |
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private function getValidatedRelation(SleekDbal $currentModel, QtModel $relatedModel): array |
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{ |
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$relations = $currentModel->getForeignKeys(); |
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$relatedModelName = get_class($relatedModel); |
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if (!isset($relations[$relatedModelName])) { |
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throw ModelException::wrongRelation($currentModel->getModelName(), $relatedModelName); |
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} |
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$relation = $relations[$relatedModelName]; |
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if (empty($relation['type'])) { |
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throw ModelException::relationTypeMissing($currentModel->getModelName(), $relatedModelName); |
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} |
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if (empty($relation['foreign_key']) || empty($relation['local_key'])) { |
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throw ModelException::missingRelationKeys($currentModel->getModelName(), $relatedModelName); |
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} |
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return $relation; |
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} |
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} |
softberg /
quantum-php-core
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