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<?php
namespace src\pdodatabase\elementos;
use Exception;
class TipoDeJoin
{
private $_tiposValidos = [
'inner' => 'INNER JOIN',
'right' => 'RIGHT JOIN',
'left' => 'LEFT JOIN',
'full' => 'FULL JOIN'
];
private $_join;
public function __construct(string $join)
$this->_join = $this->setJoin($join);
}
public function sql(): string
return $this->_join;
public function setJoin(string $join): string
$this->estaVacio($join);
$this->esValido($join);
return $this->_tiposValidos[$join];
private function estaVacio(string $string): void
if(empty($string))
throw new Exception("Error Processing Request");
private function esValido(string $string): void
if(!array_key_exists($string, $this->_tiposValidos))
OsvaldoGDelRio /
pdo-database
