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File: web-app/lib/SMARTY/internals/core.read_cache_file.php

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  Classes of davifelipe  >  smart MVC  >  web-app/lib/SMARTY/internals/core.read_cache_file.php  >  Download  
File: web-app/lib/SMARTY/internals/core.read_cache_file.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: smart MVC
MVC framework using Smarty to render views
Author: By
Last change:
Date: 3 years ago
Size: 3,604 bytes
 

Contents

Class file image Download
<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */

/**
 * read a cache file, determine if it needs to be
 * regenerated or not
 *
 * @param string $tpl_file
 * @param string $cache_id
 * @param string $compile_id
 * @param string $results
 * @return boolean
 */

// $tpl_file, $cache_id, $compile_id, &$results

function smarty_core_read_cache_file(&$params, &$smarty)
{
    static
$content_cache = array();

    if (
$smarty->force_compile) {
       
// force compile enabled, always regenerate
       
return false;
    }

    if (isset(
$content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']])) {
        list(
$params['results'], $smarty->_cache_info) = $content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']];
        return
true;
    }

    if (!empty(
$smarty->cache_handler_func)) {
       
// use cache_handler function
       
call_user_func_array($smarty->cache_handler_func,
                             array(
'read', &$smarty, &$params['results'], $params['tpl_file'], $params['cache_id'], $params['compile_id'], null));
    } else {
       
// use local cache file
       
$_auto_id = $smarty->_get_auto_id($params['cache_id'], $params['compile_id']);
       
$_cache_file = $smarty->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id);
       
$params['results'] = $smarty->_read_file($_cache_file);
    }

    if (empty(
$params['results'])) {
       
// nothing to parse (error?), regenerate cache
       
return false;
    }

   
$_contents = $params['results'];
   
$_info_start = strpos($_contents, "\n") + 1;
   
$_info_len = (int)substr($_contents, 0, $_info_start - 1);
   
$_cache_info = unserialize(substr($_contents, $_info_start, $_info_len));
   
$params['results'] = substr($_contents, $_info_start + $_info_len);

    if (
$smarty->caching == 2 && isset ($_cache_info['expires'])){
       
// caching by expiration time
       
if ($_cache_info['expires'] > -1 && (time() > $_cache_info['expires'])) {
           
// cache expired, regenerate
           
return false;
        }
    } else {
       
// caching by lifetime
       
if ($smarty->cache_lifetime > -1 && (time() - $_cache_info['timestamp'] > $smarty->cache_lifetime)) {
           
// cache expired, regenerate
           
return false;
        }
    }

    if (
$smarty->compile_check) {
       
$_params = array('get_source' => false, 'quiet'=>true);
        foreach (
array_keys($_cache_info['template']) as $_template_dep) {
           
$_params['resource_name'] = $_template_dep;
            if (!
$smarty->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) {
               
// template file has changed, regenerate cache
               
return false;
            }
        }

        if (isset(
$_cache_info['config'])) {
           
$_params = array('resource_base_path' => $smarty->config_dir, 'get_source' => false, 'quiet'=>true);
            foreach (
array_keys($_cache_info['config']) as $_config_dep) {
               
$_params['resource_name'] = $_config_dep;
                if (!
$smarty->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) {
                   
// config file has changed, regenerate cache
                   
return false;
                }
            }
        }
    }

   
$content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']] = array($params['results'], $_cache_info);

   
$smarty->_cache_info = $_cache_info;
    return
true;
}

/* vim: set expandtab: */

?>