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<?php |
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namespace Win\Repositories\Database; |
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use Win\Repositories\Pagination; |
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use Win\Models\Model; |
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use Win\Repositories\Database\Orm\FilterTrait; |
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use Win\Repositories\Database\Orm\PaginationTrait; |
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use Win\Repositories\Database\Orm\SortTrait; |
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use Win\Repositories\Database\Sql\Query; |
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/** |
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* Object Relational Mapping |
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*/ |
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abstract class Orm |
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{ |
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use FilterTrait; |
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use SortTrait; |
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use PaginationTrait; |
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/** @var string */ |
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const TABLE = ''; |
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/** @var string */ |
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const TITLE = ''; |
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/** @var string */ |
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const PK = 'id'; |
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/** @var Connection */ |
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public $conn; |
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/** @var Model */ |
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protected $model; |
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/** @var Query */ |
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protected $query; |
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/** |
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* @param Model $model |
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* @return mixed[] |
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*/ |
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abstract public static function mapRow($model); |
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abstract public static function mapModel($row); |
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/** |
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* @param Connection $connection |
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*/ |
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public function __construct($connection = null) |
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{ |
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$this->conn = $connection ?: MysqlConnection::instance(); |
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$this->query = new Query(static::TABLE); |
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$this->pagination = new Pagination(); |
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} |
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/** |
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* Prepara raw Sql |
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* @param string $query |
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* @param mixed[] |
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*/ |
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public function rawQuery($query, $values = []) |
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{ |
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$this->query = new Query(static::TABLE, $values, $query); |
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return $this; |
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} |
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/** |
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* Rota do raw sql |
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*/ |
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public function run() |
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{ |
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$query = $this->query->raw(); |
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$values = $this->query->getValues(); |
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return $this->conn->execute($query, $values); |
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} |
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/** |
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* Retorna o primeiro resultado da busca |
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*/ |
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public function one() |
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{ |
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$this->query->limit->set(0, 1); |
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$query = $this->query->select(); |
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$values = $this->query->getValues(); |
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$row = $this->conn->fetch($query, $values); |
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$this->flush(); |
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return $this->mapModel($row); |
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} |
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/** |
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* Retorna o registro pela PK |
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* @param int $id |
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*/ |
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public function find($id) |
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{ |
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return $this->filterBy(static::PK, $id)->one(); |
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} |
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/** |
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* Retorna o todos os resultados da busca |
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*/ |
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public function list() |
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{ |
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$this->applyPagination(); |
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$query = $this->query->select(); |
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$values = $this->query->getValues(); |
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$rows = $this->conn->fetchAll($query, $values); |
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$this->flush(); |
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return array_map([$this, 'mapModel'], $rows); |
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} |
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/** |
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* Retorna o total de resultados da busca |
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* Sem aplicar LIMIT e FLUSH |
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*/ |
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public function count() |
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{ |
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$query = $this->query->selectCount(); |
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$values = $this->query->getValues(); |
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return $this->conn->fetchCount($query, $values); |
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} |
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/** |
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* Remove todos os registros da busca |
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*/ |
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public function delete() |
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{ |
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$query = $this->query->delete(); |
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$values = $this->query->getValues(); |
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$this->conn->execute($query, $values); |
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$this->flush(); |
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} |
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/** |
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* Remove o registro pela PK |
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* @param int $id |
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*/ |
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public function destroy($id) |
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{ |
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$this->filterBy(static::PK, $id); |
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$query = $this->query->delete(); |
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$values = $this->query->getValues(); |
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$this->conn->execute($query, $values); |
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$this->flush(); |
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} |
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/** |
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* Salva o registro no banco |
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* @param Model $model |
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*/ |
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public function save(Model $model) |
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{ |
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$model->validate(); |
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$this->model = $model; |
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!$this->modelExists() ? $this->insert() : $this->update(); |
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$this->flush(); |
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return $this->model; |
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} |
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/** |
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* Remove todos os filtros, ordenação, etc |
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*/ |
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public function flush() |
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{ |
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$this->query = new Query(static::TABLE); |
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return $this; |
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} |
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private function insert() |
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{ |
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$this->query = new Query(static::TABLE, $this->mapRow($this->model)); |
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$query = $this->query->insert(); |
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$values = $this->query->getValues(); |
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$this->conn->execute($query, $values); |
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$this->model->id = (int) $this->conn->getLastInsertId(); |
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} |
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private function update() |
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{ |
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$this->query = new Query(static::TABLE, $this->mapRow($this->model)); |
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$this->filterBy(static::PK, $this->model->id); |
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$query = $this->query->update(); |
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$values = $this->query->getValues(); |
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$this->conn->execute($query, $values); |
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$this->flush(); |
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} |
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/** @return bool */ |
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protected function modelExists() |
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{ |
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$orm = new static($this->conn); |
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$orm->filterBy(static::PK, $this->model->id); |
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return $orm->count() > 0; |
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} |
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} |
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