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<?php declare(strict_types=1); |
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namespace DrMVC\Orm; |
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use PDO; |
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use PDOStatement; |
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class Orm |
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{ |
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/** |
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* @var PDO |
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*/ |
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private $pdo; |
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/** |
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* @var Builder |
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*/ |
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private $builder; |
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/** |
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* Orm constructor. |
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* @param string $table |
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* @param PDO $pdo |
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*/ |
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public function __construct(string $table, PDO $pdo) |
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{ |
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$this->setInstance($pdo); |
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$this->setBuilder(new Builder($table)); |
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} |
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/** |
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* @param PDO $instance |
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*/ |
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private function setInstance(PDO $instance) |
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{ |
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$this->pdo = $instance; |
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} |
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/** |
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* @param Builder $builder |
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*/ |
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private function setBuilder(Builder $builder) |
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{ |
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$this->builder = $builder; |
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} |
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/** |
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* Save or update |
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* |
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* @param Entity $entity |
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* @return PDOStatement |
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*/ |
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public function saveEntity(Entity $entity): PDOStatement |
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{ |
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$data = $entity->getData(); |
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$id = (int)$entity->id; |
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if ($id > 0 && $this->findById($id)) { |
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$result = $this->exec( |
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(string)$this->getBuilder()->update($data)->byId($id), |
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$this->getBuilder()->getPlaceholders() |
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); |
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} else { |
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$result = $this->exec( |
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(string)$this->getBuilder()->insert($data), |
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$this->getBuilder()->getPlaceholders() |
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); |
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} |
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return $result; |
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} |
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/** |
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* @param int $id |
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* @return Entity|null |
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*/ |
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public function findById(int $id)//: ?Entity |
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{ |
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$entity = $this->getEntity( |
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(string)$this->getBuilder()->select()->byId($id), |
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$this->getBuilder()->getPlaceholders() |
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); |
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return $entity[0] ?? null; |
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} |
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/** |
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* @param string $sql |
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* @param array $placeholders |
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* @return array |
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*/ |
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private function getEntity(string $sql, array $placeholders): array |
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{ |
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$stmt = $this->exec($sql, $placeholders); |
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$result = []; |
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if ($stmt) { |
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while ($entity = $stmt->fetchObject(Entity::class)) { |
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$result[] = $entity; |
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} |
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} |
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return $result; |
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} |
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/** |
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* @param string $sql |
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* @param array $placeholders |
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* @return PDOStatement |
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*/ |
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private function exec(string $sql, array $placeholders): PDOStatement |
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{ |
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$stmt = $this->getInstance()->prepare($sql); |
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$stmt->execute($placeholders); |
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return $stmt; |
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} |
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/** |
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* @return PDO |
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*/ |
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private function getInstance(): PDO |
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{ |
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return $this->pdo; |
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} |
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/** |
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* @return Builder |
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*/ |
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5 |
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private function getBuilder(): Builder |
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{ |
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return $this->builder; |
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} |
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/** |
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* @param Entity $entity |
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* @return int |
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*/ |
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public function deleteEntity(Entity $entity): int |
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{ |
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return $this->exec((string)$this->getBuilder()->delete()->byId((int)$entity->id), |
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$this->getBuilder()->getPlaceholders())->rowCount(); |
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} |
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/** Array Entities |
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* @return array |
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*/ |
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public function findAll(): array |
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{ |
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return $this->getEntity( |
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(string)$this->getBuilder()->select(), |
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$this->getBuilder()->getPlaceholders() |
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); |
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} |
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} |
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drmvc /
orm
