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优化 Cache

This commit is contained in:
Comsenz 2017-08-07 17:19:24 +08:00
parent 755f986844
commit e99b4efb64
2 changed files with 13 additions and 5 deletions
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3
upload/config/config_global_default.php
View File

@ -87,6 +87,9 @@ $_config['db']['common']['slave_except_table'] = '';
* 当 memcache 无法启用时，会自动开启另外的两种优化模式 * 当 memcache 无法启用时，会自动开启另外的两种优化模式
*/ */
//空值缓存有效期，默认30秒
$_config['cache']['empty_ttl'] = 30;
//内存变量前缀, 可更改,避免同服务器中的程序引用错乱 //内存变量前缀, 可更改,避免同服务器中的程序引用错乱
$_config['memory']['prefix'] = 'discuz_'; $_config['memory']['prefix'] = 'discuz_';

15
upload/source/class/discuz/discuz_table.php
View File

@ -19,8 +19,7 @@ class discuz_table extends discuz_base
public $methods = array(); public $methods = array();
public $empty_ttl = 30; protected $_empty_ttl;
protected $_table; protected $_table;
protected $_pk; protected $_pk;
protected $_pre_cache_key; protected $_pre_cache_key;
@ -31,6 +30,12 @@ class discuz_table extends discuz_base
if(!empty($para)) { if(!empty($para)) {
$this->_table = $para['table']; $this->_table = $para['table'];
$this->_pk = $para['pk']; $this->_pk = $para['pk'];
}
if(!isset($this->_empty_ttl) && ($empty_ttl = getglobal('config/cache/empty_ttl'))) {
$this->_empty_ttl = $empty_ttl;
}
if(empty($this->_empty_ttl)) {
$this->_empty_ttl = 30;
} }
if(isset($this->_pre_cache_key) && (($ttl = getglobal('setting/memory/'.$this->_table)) !== null || ($ttl = $this->_cache_ttl) !== null) && memory('check')) { if(isset($this->_pre_cache_key) && (($ttl = getglobal('setting/memory/'.$this->_table)) !== null || ($ttl = $this->_cache_ttl) !== null) && memory('check')) {
$this->_cache_ttl = $ttl; $this->_cache_ttl = $ttl;
@ -89,7 +94,7 @@ class discuz_table extends discuz_base
} }
} }
public function fetch($id, $force_from_db = false){ public function fetch($id, $force_from_db = false){
$data = array(); $data = array();
if(!empty($id)) { if(!empty($id)) {
if($force_from_db || ($data = $this->fetch_cache($id)) === false) { if($force_from_db || ($data = $this->fetch_cache($id)) === false) {
@ -97,7 +102,7 @@ class discuz_table extends discuz_base
if(!empty($data)) { if(!empty($data)) {
$this->store_cache($id, $data); $this->store_cache($id, $data);
} else { } else {
$this->store_cache($id, array(), $this->empty_ttl); $this->store_cache($id, array(), $this->_empty_ttl);
} }
} }
} }
@ -122,7 +127,7 @@ class discuz_table extends discuz_base
$diff_ids = array_diff($ids, array_keys($data)); $diff_ids = array_diff($ids, array_keys($data));
if(!empty($diff_ids)) { if(!empty($diff_ids)) {
foreach($diff_ids as $diff_id) { foreach($diff_ids as $diff_id) {
$this->store_cache($diff_id, array(), $this->empty_ttl); $this->store_cache($diff_id, array(), $this->_empty_ttl);
} }
} }
} }