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<?php |
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/** |
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* KumbiaPHP web & app Framework. |
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* |
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* LICENSE |
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* |
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* This source file is subject to the new BSD license that is bundled |
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* with this package in the file LICENSE.txt. |
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* It is also available through the world-wide-web at this URL: |
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* http://wiki.kumbiaphp.com/Licencia |
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* If you did not receive a copy of the license and are unable to |
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* obtain it through the world-wide-web, please send an email |
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* to [email protected] so we can send you a copy immediately. |
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* |
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* @category Kumbia |
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* |
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* @copyright 2005 - 2016 Kumbia Team (http://www.kumbiaphp.com) |
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* @license http://wiki.kumbiaphp.com/Licencia New BSD License |
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*/ |
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namespace Kumbia\ActiveRecord; |
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use PDO; |
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/** |
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* Manejador de conexiones de base de datos. |
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*/ |
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abstract class Db |
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{ |
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/** |
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* Pool de conexiones. |
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* |
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* @var array |
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*/ |
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private static $pool = []; |
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/** |
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* Config de conexiones. |
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* |
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* @var array |
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*/ |
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private static $config = []; |
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/** |
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* Obtiene manejador de conexión a la base de datos. |
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* |
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* @param string $database base de datos a conectar |
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* @param bool $force forzar nueva conexion PDO |
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* |
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* @return PDO |
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* @throw KumbiaException |
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*/ |
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public static function get($database = 'default', $force = false) |
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{ |
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// Verifica el singleton |
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if (!$force && isset(self::$pool[$database])) { |
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return self::$pool[$database]; |
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} |
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if ($force) { |
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return self::connect(self::getConfig($database)); |
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} |
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return self::$pool[$database] = self::connect(self::getConfig($database)); |
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} |
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/** |
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* Conexión a la base de datos. |
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* |
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* @param array $config Config base de datos a conectar |
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* |
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* @return PDO |
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*/ |
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private static function connect($config) |
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{ |
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try { |
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return new PDO($config['dsn'], $config['username'], $config['password'], $config['params']); |
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} catch (\PDOException $e) { //TODO: comprobar |
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$message = $e->getMessage(); |
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throw new \RuntimeException("No se pudo realizar la conexión con '{$config['dsn']}'. {$message}"); |
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} |
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} |
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/** |
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* Obtiene manejador de conexión a la base de datos. |
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* |
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* @param string $database base de datos a conectar |
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* |
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* @return array |
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*/ |
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private static function getConfig($database) |
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{ |
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if (empty(self::$config)) { |
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// Leer la configuración de conexión |
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self::$config = require APP_PATH.'config/databases.php'; |
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} |
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if (!isset(self::$config[$database])) { |
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throw new \RuntimeException("No existen datos de conexión para la bd '$database' en ".APP_PATH.'config/databases.php'); |
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} |
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// Envia y carga los valores por defecto para la conexión, si no existen |
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return self::$config[$database] + [ |
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'dns' => null, |
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'username' => null, |
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'password' => null, |
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'params' => [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION], |
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]; |
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} |
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/** |
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* Permite agregar una base de datos sin leer del archivo de configuracion. |
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* |
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* @param array $value Valores de la configuración |
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*/ |
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public static function setConfig(array $value) |
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{ |
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self::$config = [] + self::$config + $value; |
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} |
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} |
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KumbiaPHP /
ActiveRecord
