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76 lines
2.6 KiB
PHP
Executable file
76 lines
2.6 KiB
PHP
Executable file
<?php
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/**
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* MySQL Resource
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*
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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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*
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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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*
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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_Mysql 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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// prepared fetchTimestamp() statement
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protected $mtime;
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public function __construct() {
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try {
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$this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty", "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 = $this->db->prepare('SELECT modified, source FROM templates WHERE name = :name');
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$this->mtime = $this->db->prepare('SELECT modified 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 $mtime template modification timestamp (epoch)
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* @return void
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*/
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protected function fetch($name, &$source, &$mtime)
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{
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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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/**
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* Fetch a template's modification time from database
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*
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* @note implementing this method is optional. Only implement it if modification times can be accessed faster than loading the comple template source.
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* @param string $name template name
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* @return integer timestamp (epoch) the template was modified
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*/
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protected function fetchTimestamp($name) {
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$this->mtime->execute(array('name' => $name));
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$mtime = $this->mtime->fetchColumn();
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$this->mtime->closeCursor();
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return strtotime($mtime);
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}
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}
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