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<?php
/**
* MySQL Resource
* Resource Implementation based on the Custom API to use
* MySQL as the storage resource for Smarty's templates and configs.
* Note that this MySQL implementation fetches the source and timestamps in
* a single database query, instead of two separate like resource.mysql.php does.
* Table definition:
* <pre>CREATE TABLE IF NOT EXISTS `templates` (
* `name` varchar(100) NOT NULL,
* `modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
* `source` text,
* PRIMARY KEY (`name`)
* ) ENGINE=InnoDB DEFAULT CHARSET=utf8;</pre>
* Demo data:
* <pre>INSERT INTO `templates` (`name`, `modified`, `source`) VALUES ('test.tpl', "2010-12-25 22:00:00", '{$x="hello world"}{$x}');</pre>
*
* @package Resource-examples
* @author Rodney Rehm
*/
class Smarty_Resource_Mysqls extends Smarty_Resource_Custom
{
// PDO instance
protected $db;
// prepared fetch() statement
protected $fetch;
public function __construct()
{
try {
$this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty");
}
catch (PDOException $e) {
throw new SmartyException('Mysql Resource failed: ' . $e->getMessage());
}
$this->fetch = $this->db->prepare('SELECT modified, source FROM templates WHERE name = :name');
}
/**
* Fetch a template and its modification time from database
*
* @param string $name template name
* @param string $source template source
* @param integer $mtime template modification timestamp (epoch)
*
* @return void
*/
protected function fetch($name, &$source, &$mtime)
{
$this->fetch->execute(array('name' => $name));
$row = $this->fetch->fetch();
$this->fetch->closeCursor();
if ($row) {
$source = $row[ 'source' ];
$mtime = strtotime($row[ 'modified' ]);
} else {
$source = null;
$mtime = null;
}
}
}
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