/usr/share/php/kohana3.1/system/classes/kohana/fragment.php is in libkohana3.1-core-php 3.1.5-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | <?php defined('SYSPATH') OR die('No direct script access.');
/**
* View fragment caching. This is primarily used to cache small parts of a view
* that rarely change. For instance, you may want to cache the footer of your
* template because it has very little dynamic content. Or you could cache a
* user profile page and delete the fragment when the user updates.
*
* For obvious reasons, fragment caching should not be applied to any
* content that contains forms.
*
* [!!] Multiple language (I18n) support was added in v3.0.4.
*
* @package Kohana
* @category Helpers
* @author Kohana Team
* @copyright (c) 2009-2012 Kohana Team
* @license http://kohanaframework.org/license
* @uses Kohana::cache
*/
class Kohana_Fragment {
/**
* @var integer default number of seconds to cache for
*/
public static $lifetime = 30;
/**
* @var boolean use multilingual fragment support?
*/
public static $i18n = FALSE;
/**
* @var array list of buffer => cache key
*/
protected static $_caches = array();
/**
* Generate the cache key name for a fragment.
*
* $key = Fragment::_cache_key('footer', TRUE);
*
* @param string $name fragment name
* @param boolean $i18n multilingual fragment support
* @return string
* @uses I18n::lang
* @since 3.0.4
*/
protected static function _cache_key($name, $i18n = NULL)
{
if ($i18n === NULL)
{
// Use the default setting
$i18n = Fragment::$i18n;
}
// Language prefix for cache key
$i18n = ($i18n === TRUE) ? I18n::lang() : '';
// Note: $i18n and $name need to be delimited to prevent naming collisions
return 'Fragment::cache('.$i18n.'+'.$name.')';
}
/**
* Load a fragment from cache and display it. Multiple fragments can
* be nested with different life times.
*
* if ( ! Fragment::load('footer')) {
* // Anything that is echo'ed here will be saved
* Fragment::save();
* }
*
* @param string $name fragment name
* @param integer $lifetime fragment cache lifetime
* @param boolean $i18n multilingual fragment support
* @return boolean
*/
public static function load($name, $lifetime = NULL, $i18n = NULL)
{
// Set the cache lifetime
$lifetime = ($lifetime === NULL) ? Fragment::$lifetime : (int) $lifetime;
// Get the cache key name
$cache_key = Fragment::_cache_key($name, $i18n);
if ($fragment = Kohana::cache($cache_key, NULL, $lifetime))
{
// Display the cached fragment now
echo $fragment;
return TRUE;
}
else
{
// Start the output buffer
ob_start();
// Store the cache key by the buffer level
Fragment::$_caches[ob_get_level()] = $cache_key;
return FALSE;
}
}
/**
* Saves the currently open fragment in the cache.
*
* Fragment::save();
*
* @return void
*/
public static function save()
{
// Get the buffer level
$level = ob_get_level();
if (isset(Fragment::$_caches[$level]))
{
// Get the cache key based on the level
$cache_key = Fragment::$_caches[$level];
// Delete the cache key, we don't need it anymore
unset(Fragment::$_caches[$level]);
// Get the output buffer and display it at the same time
$fragment = ob_get_flush();
// Cache the fragment
Kohana::cache($cache_key, $fragment);
}
}
/**
* Delete a cached fragment.
*
* Fragment::delete($key);
*
* @param string $name fragment name
* @param boolean $i18n multilingual fragment support
* @return void
*/
public static function delete($name, $i18n = NULL)
{
// Invalid the cache
Kohana::cache(Fragment::_cache_key($name, $i18n), NULL, -3600);
}
} // End Fragment
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