library/smarty/demo/plugins/resource.mysqls.php
author Markus Bröker<broeker.markus@googlemail.com>
Sat, 12 Dec 2015 12:34:01 +0100
changeset 27 79be7d6a2765
parent 0 4869aea77e21
permissions -rw-r--r--
Serialisierungssupport für die Entityklasse hinzu gefügt
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<?php
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/**
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 * MySQL Resource
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 * Resource Implementation based on the Custom API to use
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 * MySQL as the storage resource for Smarty's templates and configs.
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 * Note that this MySQL implementation fetches the source and timestamps in
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 * a single database query, instead of two separate like resource.mysql.php does.
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 * Table definition:
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 * <pre>CREATE TABLE IF NOT EXISTS `templates` (
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 *   `name` varchar(100) NOT NULL,
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 *   `modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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 *   `source` text,
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 *   PRIMARY KEY (`name`)
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 * ) ENGINE=InnoDB DEFAULT CHARSET=utf8;</pre>
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 * Demo data:
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 * <pre>INSERT INTO `templates` (`name`, `modified`, `source`) VALUES ('test.tpl', "2010-12-25 22:00:00", '{$x="hello world"}{$x}');</pre>
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 *
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 * @package Resource-examples
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 * @author  Rodney Rehm
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 */
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class Smarty_Resource_Mysqls extends Smarty_Resource_Custom {
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    // PDO instance
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    protected $db;
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    // prepared fetch() statement
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    protected $fetch;
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    public function __construct() {
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        try {
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            $this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty");
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        } catch (PDOException $e) {
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            throw new SmartyException('Mysql Resource failed: ' . $e->getMessage());
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        }
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        $this->fetch = $this->db->prepare('SELECT modified, source FROM templates WHERE name = :name');
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    }
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    /**
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     * Fetch a template and its modification time from database
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     *
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     * @param  string $name template name
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     * @param  string $source template source
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     * @param  integer $mtime template modification timestamp (epoch)
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     *
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     * @return void
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     */
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    protected function fetch($name, &$source, &$mtime) {
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        $this->fetch->execute(array('name' => $name));
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        $row = $this->fetch->fetch();
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        $this->fetch->closeCursor();
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        if ($row) {
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            $source = $row['source'];
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            $mtime = strtotime($row['modified']);
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        } else {
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            $source = null;
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            $mtime = null;
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        }
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    }
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}