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<?php |
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namespace Win\Database; |
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use Win\Contracts\Database\Orm\Model; |
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use Win\Database\Sql\Delete; |
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use Win\Database\Sql\Insert; |
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use Win\Database\Sql\Select; |
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use Win\Database\Sql\Update; |
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use Win\Singleton\SingletonTrait; |
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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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/** @var string */ |
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protected $table; |
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/** @var Model */ |
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protected $model; |
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/** @var bool */ |
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protected $debug; |
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/** @var Connection */ |
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protected static $db; |
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use SingletonTrait { |
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__construct as finalConstruct; |
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} |
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/** @var Select */ |
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private $query; |
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public function __construct() |
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{ |
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$this->query = new Select($this); |
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} |
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/** @param Connection $db */ |
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public static function setConnection(Connection $db) |
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{ |
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static::$db = $db; |
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} |
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/** @return Connection */ |
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public static function getConnection() |
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{ |
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return static::$db; |
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} |
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/** |
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* @param mixed[] $row |
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* @return Model |
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*/ |
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abstract public function mapModel($row); |
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/** |
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* @param Model $model |
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* @return mixed[] |
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*/ |
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abstract public function mapRow($model); |
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/** @return mixed[] */ |
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public function getRowValues() |
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{ |
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return $this->mapRow($this->getModel()); |
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} |
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/** Liga o debug */ |
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public function debugOn() |
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{ |
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$this->debug = true; |
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} |
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/** Desliga o debug */ |
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public function debugOff() |
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{ |
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$this->debug = false; |
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} |
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/** @return string */ |
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public function getTable() |
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{ |
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return $this->table; |
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} |
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/** @return Model */ |
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public function getModel() |
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{ |
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return $this->model; |
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} |
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/** @return bool */ |
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public function getDebugMode() |
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{ |
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return $this->debug; |
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} |
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/** @return bool */ |
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public function modelExists() |
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{ |
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return $this->model->getId() > 0; |
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} |
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/** |
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* Retorna o primeiro resultado da consulta |
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*/ |
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public function one() |
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{ |
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$rows = $this->query->execute(); |
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return $this->mapModel($rows[0]); |
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} |
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/** |
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* Retorna todos os resultado da consulta |
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*/ |
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public function all() |
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{ |
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$rows = $this->query->execute(); |
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$all = []; |
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foreach ($rows as $row) { |
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$all[] = $this->mapModel($row); |
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} |
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return $all; |
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} |
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/** @return int */ |
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public function numRows() |
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{ |
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$count = $this->query->count(); |
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return $count; |
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} |
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/** |
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* Define as colunas do resultado |
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* @param string[] $columns |
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* @return static |
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*/ |
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public function setColumns($columns) |
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{ |
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$this->query->columns = $columns; |
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return $this; |
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} |
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/** |
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* Adiciona uma coluna do resultado |
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* @param string $column |
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* @return static |
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*/ |
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public function addColumn($column) |
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{ |
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$this->query->columns[] = $column; |
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return $this; |
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} |
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/** |
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* Filtra pelo id |
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* @param int $id |
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* @return static |
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*/ |
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public function find($id) |
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{ |
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$this->filterBy('id', $id); |
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return $this; |
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} |
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/** |
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* Filtra pelo campo |
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* @param string $column |
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* @param mixed $value |
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* @return static |
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*/ |
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public function filterBy($column, $value) |
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{ |
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$this->filter($column, '=', $value); |
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return $this; |
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} |
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/** |
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* Adiciona filtros para busca |
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* @return static |
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*/ |
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public function filter($column, $operator, $value) |
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{ |
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$this->query->where->add($column, $operator, $value); |
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return $this; |
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} |
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/** |
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* Ordena por um campo |
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* @param string $orderBy |
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* @return static |
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*/ |
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public function orderBy($orderBy) |
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{ |
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$this->query->orderBy->set($orderBy); |
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return $this; |
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} |
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/** |
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* Limita os resultados |
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* @param int $limit |
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* @return static |
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*/ |
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public function limit($limit) |
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{ |
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$this->query->limit->set($limit); |
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return $this; |
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} |
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/** |
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* Ordena pelos mais novos |
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* @return static |
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*/ |
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public function newer() |
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{ |
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$this->orderBy('id DESC'); |
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return $this; |
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} |
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/** |
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* Ordena pelos mais antigos |
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* @return static |
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*/ |
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public function older() |
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{ |
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$this->orderBy('id ASC'); |
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return $this; |
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} |
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/** |
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* @param Model $model |
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* @return bool |
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*/ |
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public function save(Model $model) |
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{ |
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$this->model = $model; |
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return $this->insertOrUpdate(); |
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} |
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/** @return bool */ |
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private function insertOrUpdate() |
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{ |
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if (!$this->modelExists()) { |
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$success = $this->insert(); |
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} else { |
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$success = $this->update(); |
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} |
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return $success; |
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} |
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/** @return bool */ |
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private function insert() |
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{ |
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$query = new Insert($this); |
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$success = $query->execute(); |
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$this->model->setId(static::$db->getLastInsertId()); |
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return $success; |
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} |
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/** @return bool */ |
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public function update() |
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{ |
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$query = new Update($this); |
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return $query->execute(); |
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} |
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/** |
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* Remove o registro do banco |
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* @param Model $model |
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* @return bool |
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*/ |
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public function delete(Model $model) |
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{ |
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$query = new Delete($this); |
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$query->where->add('id', '=', $model->getId()); |
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return $query->execute(); |
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} |
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} |
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