Enano CMS (1.1.x): includes/cache.php@72df14a56a03 (annotated)

607 935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	1	<?php
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	2
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	3	/*
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	4	* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
685 17ebe24cdf85 Rebranded as 1.1.5 (Caoineag alpha 5) and fixed a couple bugs related to CDN support in template_nodb and installerUI. Updated readme. Dan parents: 607 diff changeset	5	* Version 1.1.5 (Caoineag alpha 5)
607 935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	6	* Copyright (C) 2006-2008 Dan Fuhry
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	7	*
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	8	* This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	9	* as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	10	*
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	11	* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	12	* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	13	*/
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	14
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	15	/**
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	16	* Framework for caching arbitrary data around the site.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	17	* @package Enano
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	18	* @subpackage Core
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	19	* @author Dan Fuhry <dan@enanocms.org>
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	20	* @license GNU General Public License
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	21	*/
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	22
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	23	class CacheManager
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	24	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	25	/**
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	26	* Fetch a cached piece of data.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	27	* @param string Cache ID. The timestamp is checked automatically.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	28	*/
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	29
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	30	public function fetch($cache_id)
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	31	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	32	if ( !preg_match('/^[a-z0-9_]+$/', $cache_id) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	33	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	34	throw new Exception('Cache ID must be letters, numbers, and underscores.');
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	35	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	36	$cache_file = ENANO_ROOT . "/cache/cache_$cache_id.php";
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	37	if ( file_exists($cache_file) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	38	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	39	require($cache_file);
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	40	if ( isset($_cache_data) && isset($_cache_ttl) && isset($_cache_timestamp) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	41	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	42	$cache_expire = $_cache_timestamp + ( 60 * $_cache_ttl);
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	43	if ( $cache_expire >= time() \|\| $_cache_ttl === -1 )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	44	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	45	return $_cache_data;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	46	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	47	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	48	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	49	return false;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	50	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	51
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	52	/**
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	53	* Stores an array by var_export()ing it and saving it to disk.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	54	* @param string Cache ID - human readable name for this store (letters, numbers, underscores)
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	55	* @param array Data to store
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	56	* @param int TTL for the cached array, in minutes. Defaults to 20. If set to -1, caches indefinitely.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	57	* @return bool True on success, false on failure
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	58	*/
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	59
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	60	public function store($cache_id, $data, $ttl = 20)
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	61	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	62	if ( getConfig('cache_thumbs') != '1' )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	63	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	64	// caching disabled
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	65	return false;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	66	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	67	if ( !preg_match('/^[a-z0-9_]+$/', $cache_id) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	68	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	69	throw new Exception('Cache ID must be letters, numbers, and underscores.');
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	70	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	71	if ( !is_int($ttl) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	72	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	73	throw new Exception('TTL must be an integer');
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	74	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	75
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	76	$cache_file = ENANO_ROOT . "/cache/cache_$cache_id.php";
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	77	if ( file_exists($cache_file) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	78	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	79	@unlink($cache_file);
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	80	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	81	$fh = @fopen($cache_file, 'w');
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	82	if ( !$fh )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	83	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	84	throw new Exception('Failed to open file for writing.');
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	85	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	86	$exported = Language::var_export_string($data);
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	87	$now = time();
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	88	$content = <<<EOF
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	89	<?php
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	90	/**
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	91	* Automatically generated cache file.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	92	* Do not edit this file as it will expire and be overwritten $ttl minutes from its creation.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	93	*/
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	94
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	95	\$_cache_ttl = $ttl;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	96	\$_cache_timestamp = $now;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	97	\$_cache_data = $exported;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	98
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	99	EOF;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	100	fwrite($fh, $content);
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	101	fclose($fh);
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	102
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	103	return true;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	104	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	105
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	106	/**
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	107	* Deletes a cached item.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	108	* @param string Cache ID.
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	109	* @return bool true on success or if item doesn't exist, false on failure
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	110	*/
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	111
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	112	public function purge($cache_id)
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	113	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	114	if ( !preg_match('/^[a-z0-9_]+$/', $cache_id) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	115	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	116	throw new Exception('Cache ID must be letters, numbers, and underscores.');
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	117	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	118
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	119	$cache_file = ENANO_ROOT . "/cache/cache_$cache_id.php";
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	120	if ( file_exists($cache_file) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	121	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	122	if ( unlink($cache_file) )
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	123	{
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	124	return true;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	125	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	126	return false;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	127	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	128	return true;
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	129	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	130	}
935f3799b654 First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs) Dan parents: diff changeset	131

author	Dan
	Sun, 21 Dec 2008 17:56:32 -0500
changeset 784	72df14a56a03
parent 685	17ebe24cdf85
child 801	eb8b23f11744
permissions	-rw-r--r--