php/yii2
1
0
Fork 0
mirror of https://github.com/yiisoft/yii2.git synced 2025-11-16 22:39:52 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fixes #145. Reusable cache dependencies.

Browse Source
This commit is contained in:
resurtm
2013-05-22 15:10:14 +06:00
parent a954312a18
commit ebcc936ab1
1 changed files with 46 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
framework/yii/caching/Dependency.php
View File

@@ -25,6 +25,22 @@ abstract class Dependency extends \yii\base\Object
* latest dependency data.
*/
public $data;
/**
* @var boolean whether this dependency is reusable or not. True value means that dependent
* data for this cache dependency will only be generated once per request. This allows you
* to use the same cache dependency for multiple separate cache calls while generating the same
* page without an overhead of re-evaluating dependency data each time. Defaults to false.
*/
public $reuseData = false;
/**
* @var array static storage of cached data for reusable dependencies.
*/
private static $_reusableData = array();
/**
* @var string a unique hash value for this cache dependency.
*/
private $_hash;
/**
* Evaluates the dependency by generating and saving the data related with dependency.
@@ -32,7 +48,17 @@ abstract class Dependency extends \yii\base\Object
*/
public function evaluateDependency()
{
if (!$this->reuseData) {
$this->data = $this->generateDependencyData();
} else {
if ($this->_hash === null) {
$this->_hash = sha1(serialize($this));
}
if (!array_key_exists($this->_hash, self::$_reusableData)) {
self::$_reusableData[$this->_hash] = $this->generateDependencyData();
}
$this->data = self::$_reusableData[$this->_hash];
}
}
/**
@@ -40,7 +66,25 @@ abstract class Dependency extends \yii\base\Object
*/
public function getHasChanged()
{
if (!$this->reuseData) {
return $this->generateDependencyData() !== $this->data;
} else {
if ($this->_hash === null) {
$this->_hash = sha1(serialize($this));
}
if (!array_key_exists($this->_hash, self::$_reusableData)) {
self::$_reusableData[$this->_hash] = $this->generateDependencyData();
}
return self::$_reusableData[$this->_hash] !== $this->_data;
}
}
/**
* Resets all cached data for reusable dependencies.
*/
public static function resetReusableData()
{
self::$_reusableData = array();
}
/**