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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. |
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* |
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* @category Kumbia |
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* @package Cache |
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* @subpackage Drivers |
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* |
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* @copyright Copyright (c) 2005 - 2023 KumbiaPHP Team (http://www.kumbiaphp.com) |
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* @license https://github.com/KumbiaPHP/KumbiaPHP/blob/master/LICENSE New BSD License |
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*/ |
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/** |
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* Cache con Sqlite |
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* |
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* @category Kumbia |
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* @package Cache |
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* @subpackage Drivers |
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*/ |
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class SqliteCache extends Cache |
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{ |
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/** |
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* Conexion a la base de datos Sqlite |
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* |
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* @var resource |
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* */ |
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protected $_db = null; |
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/** |
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* Constructor |
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* |
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* */ |
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public function __construct() |
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{ |
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/** |
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* Abre una conexión SqLite a la base de datos cache |
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* |
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*/ |
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$this->_db = sqlite_open(APP_PATH . 'temp/cache.db'); |
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$result = sqlite_query($this->_db, "SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND tbl_name='cache' "); |
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$count = sqlite_fetch_single($result); |
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if (!$count) { |
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sqlite_exec(' CREATE TABLE cache (id TEXT, "group" TEXT, value TEXT, lifetime TEXT) ', $this->_db); |
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} |
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} |
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/** |
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* Carga un elemento cacheado |
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* |
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* @param string $id |
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* @param string $group |
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* @return string |
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*/ |
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public function get($id, $group='default') |
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{ |
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$this->_id = $id; |
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$this->_group = $group; |
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$id = addslashes($id); |
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$group = addslashes($group); |
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$id = addslashes($id); |
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$group = addslashes($group); |
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$lifetime = time(); |
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$result = sqlite_query($this->_db, " SELECT value FROM cache WHERE id='$id' AND \"group\"='$group' AND lifetime>'$lifetime' OR lifetime='undefined' "); |
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return sqlite_fetch_single($result); |
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} |
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/** |
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* Guarda un elemento en la cache con nombre $id y valor $value |
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* |
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* @param string $id |
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* @param string $group |
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* @param string $value |
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* @param int $lifetime tiempo de vida en forma timestamp de unix |
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* @return boolean |
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*/ |
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public function save($value, $lifetime='', $id='', $group='default') |
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{ |
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if (!$id) { |
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$id = $this->_id; |
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$group = $this->_group; |
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} |
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if ($lifetime) { |
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$lifetime = strtotime($lifetime); |
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} else { |
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$lifetime = 'undefined'; |
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} |
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$id = addslashes($id); |
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$group = addslashes($group); |
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$value = addslashes($value); |
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$result = sqlite_query($this->_db, " SELECT COUNT(*) FROM cache WHERE id='$id' AND \"group\"='$group' "); |
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$count = sqlite_fetch_single($result); |
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// Ya existe el elemento cacheado |
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if ($count) { |
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return sqlite_exec(" UPDATE cache SET value='$value', lifetime='$lifetime' WHERE id='$id' AND \"group\"='$group' ", $this->_db); |
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} |
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return sqlite_exec(" INSERT INTO cache (id, \"group\", value, lifetime) VALUES ('$id','$group','$value','$lifetime')", $this->_db); |
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} |
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/** |
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* Limpia la cache |
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* |
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* @param string $group |
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* @return boolean |
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*/ |
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public function clean($group='') |
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{ |
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if ($group) { |
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$group = addslashes($group); |
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return sqlite_exec(" DELETE FROM cache WHERE \"group\"='$group' ", $this->_db); |
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} |
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return sqlite_exec(" DELETE FROM cache ", $this->_db); |
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} |
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/** |
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* Elimina un elemento de la cache |
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* |
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* @param string $id |
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* @param string $group |
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* @return boolean |
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*/ |
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public function remove($id, $group='default') |
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{ |
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$id = addslashes($id); |
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$group = addslashes($group); |
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return sqlite_exec(" DELETE FROM cache WHERE id='$id' AND \"group\"='$group' ", $this->_db); |
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} |
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} |
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KumbiaPHP /
KumbiaPHP
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