function smarty_core_read_cache_file in Quiz 6.5
Same name and namespace in other branches
- 6.6 includes/moodle/lib/smarty/core/core.read_cache_file.php \smarty_core_read_cache_file()
2 calls to smarty_core_read_cache_file()
- Smarty::fetch in includes/
moodle/ lib/ smarty/ Smarty.class.php - executes & returns or displays the template results
- Smarty::is_cached in includes/
moodle/ lib/ smarty/ Smarty.class.php - test to see if valid cache exists for this template
File
- includes/
moodle/ lib/ smarty/ core/ core.read_cache_file.php, line 21
Code
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;
}
$cache_split = explode("\n", $params['results'], 2);
$cache_header = $cache_split[0];
$_cache_info = unserialize($cache_header);
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'] < $_params['resource_timestamp']) {
// config file has changed, regenerate cache
return false;
}
}
}
}
foreach ($_cache_info['cache_serials'] as $_include_file_path => $_cache_serial) {
if (empty($smarty->_cache_serials[$_include_file_path])) {
$smarty
->_include($_include_file_path, true);
}
if ($smarty->_cache_serials[$_include_file_path] != $_cache_serial) {
/* regenerate */
return false;
}
}
$params['results'] = $cache_split[1];
$content_cache[$params['tpl_file'] . ',' . $params['cache_id'] . ',' . $params['compile_id']] = array(
$params['results'],
$_cache_info,
);
$smarty->_cache_info = $_cache_info;
return true;
}