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git-svn-id: http://xe-core.googlecode.com/svn/sandbox@7440 201d5d3c-b55e-5fd7-737f-ddc643e51545

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This commit is contained in:
ngleader 2010-05-11 10:30:18 +00:00
parent aff477dd54
commit e5c5449be4
9 changed files with 38 additions and 179 deletions
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74
classes/db/DB.class.php
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@ -44,9 +44,6 @@
var $supported_list = array(); ///< list of supported db, (will be written by classes/DB/DB***.class.php)
var $cache_file = 'files/cache/queries/'; ///< location of query cache
var $path;
var $tableMtime = array();
var $disabled_cache_tables = array('session','counter_log','counter_site_status','counter_status');
/**
* @brief returns instance of certain db type
@ -62,11 +59,9 @@
$class_file = sprintf("%sclasses/db/%s.class.php", _XE_PATH_, $class_name);
if(!file_exists($class_file)) new Object(-1, 'msg_db_not_setted');
require_once($class_file);
require_once($class_file);
$eval_str = sprintf('$GLOBALS[\'__DB__\'][\''.$db_type.'\'] = new %s();', $class_name);
eval($eval_str);
register_shutdown_function(array(&$GLOBALS['__DB__'][$db_type],'_updateTableMtime'));
}
return $GLOBALS['__DB__'][$db_type];
@ -242,7 +237,7 @@
* @return result of query
* @remarks this function finds xml file or cache file of $query_id, compiles it and then execute it
**/
function executeQuery($query_id, $args = NULL, $update_mtime = true) {
function executeQuery($query_id, $args = NULL) {
if(!$query_id) return new Object(-1, 'msg_invalid_queryid');
$id_args = explode('.', $query_id);
@ -265,7 +260,7 @@
$cache_file = $this->checkQueryCacheFile($query_id, $xml_file);
// execute query
return $this->_executeQuery($cache_file, $args, $query_id, $update_mtime);
return $this->_executeQuery($cache_file, $args, $query_id);
}
@ -301,7 +296,7 @@
* @param[in] $query_id query id
* @return result of query
**/
function _executeQuery($cache_file, $source_args, $query_id, $update_mtime = true) {
function _executeQuery($cache_file, $source_args, $query_id) {
global $lang;
if(!file_exists($cache_file)) return new Object(-1, 'msg_invalid_queryid');
@ -316,39 +311,21 @@
// execute appropriate query
switch($output->action) {
case 'insert' :
//$this->resetCountCache($output->tables);
if($update_mtime) $this->updateTableMtime($output->tables);
$this->resetCountCache($output->tables);
$output = $this->_executeInsertAct($output);
break;
case 'update' :
//$this->resetCountCache($output->tables);
if($update_mtime) $this->updateTableMtime($output->tables);
$this->resetCountCache($output->tables);
$output = $this->_executeUpdateAct($output);
break;
case 'delete' :
//$this->resetCountCache($output->tables);
if($update_mtime) $this->updateTableMtime($output->tables);
$this->resetCountCache($output->tables);
$output = $this->_executeDeleteAct($output);
break;
case 'select' :
if(count(array_intersect($this->disabled_cache_tables, $output->tables))==0){
$CacheHandler = &CacheHandler::getInstance();
$cache_support = $CacheHandler->isSupport();
if($cache_support){
$cache_key = $query_id . serialize($source_args);
$buff = $CacheHandler->get($cache_key, $this->_getTableMtime($output->tables));
if($buff){
return $buff;
}
}
}
$output = $this->_executeSelectAct($output);
if($cache_support && $cache_key) $CacheHandler->put($cache_key, $output);
break;
}
if($this->isError()) $output = $this->getError();
else if(!is_a($output, 'Object') && !is_subclass_of($output, 'Object')) $output = new Object();
$output->add('_query', $this->query);
@ -357,43 +334,6 @@
return $output;
}
function updateTableMtime($tables){
$this->tableMtime = array_merge($this->tableMtime,$tables);
}
function _updateTableMtime(){
$tables = array_unique($this->tableMtime);
foreach($tables as $table){
if(!in_array($table, $this->disabled_cache_tables)){
touch(_XE_PATH_.'files/cache/'.$table);
}
}
}
function _getTableMtime($tables){
$tablemtime = array(null);
foreach($tables as $table){
if($GLOBALS['TABLEMTIME'][$table]){
$tablemtime[] = $GLOBALS['TABLEMTIME'][$table];
continue;
}
$file = _XE_PATH_.'files/cache/'.$table;
if(file_exists($file)){
if(!$GLOBALS['TABLEMTIME'][$table]){
$GLOBALS['TABLEMTIME'][$table] = filemtime($file);
}
$tablemtime[] = $GLOBALS['TABLEMTIME'][$table];
}else{
touch($file);
}
}
$mtime = max($tablemtime);
return !$mtime ? time() : $mtime;
}
/**
* @brief check $val with $filter_type
* @param[in] $key key value