* @ cache([cacheid],[duration=86400]). The id is optional. The duration of the cache is in seconds
* // content here
* @ endcache()
*
* It also adds a new function (optional) to the business or logic layer
*
* if ($blade->cacheExpired('hellocache',1,5)) { //'helloonecache' =template, =1 id cache, 5=duration (seconds)
* // cache expired, so we should do some stuff (such as read from the database)
* }
*
* @package BladeOneCache
* @version 1.4 2016-06-25
* @link https://github.com/EFTEC/BladeOne
* @author Jorge Patricio Castro Castillo
*/
trait BladeOneCache
{
var $curCacheId=0;
var $curCacheDuration="";
var $curCachePosition=0;
var $cacheRunning=false;
private $cacheExpired=[]; // avoids to compare the file different times.
public function compileCache($expression) {
// get id of template
// if the file exists then
// compare date.
// if the date is too old then re-save.
// else
// save for the first time.
return $this->phpTag."echo \$this->cacheStart{$expression}; if(!\$this->cacheRunning) { ?>";
}
public function compileEndCache($expression) {
return $this->phpTag."} // if cacheRunning\necho \$this->cacheEnd{$expression}; ?>";
}
/**
* Returns true if the cache expired (or doesn't exist), otherwise false.
* @param string $templateName name of the template to use (such hello for template hello.blade.php)
* @param string $id (id of cache, optional, if not id then it adds automatically a number)
* @param int $cacheDuration (duration of the cache in seconds)
* @return bool (return if the cache expired)
*/
public function cacheExpired($templateName,$id,$cacheDuration) {
if ($this->getMode() & 1) {
return true; // forced mode, hence it always expires. (fast mode is ignored).
}
$compiledFile = $this->getCompiledFile($templateName).'_cache'.$id;
if (isset($this->cacheExpired[$compiledFile])) {
// if the information is already in the array then returns it.
return $this->cacheExpired[$compiledFile];
}
$date=@filemtime($compiledFile);
if ($date) {
if ($date+$cacheDuration cacheExpired[$compiledFile]=true;
return true; // time-out.
}
} else {
$this->cacheExpired[$compiledFile]=true;
return true; // no file
}
$this->cacheExpired[$compiledFile]=false;
return false; // cache active.
}
public function cacheStart($id="",$cacheDuration=86400) {
$this->curCacheId=($id=="")?($this->curCacheId+1):$id;
$this->curCacheDuration=$cacheDuration;
$this->curCachePosition=strlen(ob_get_contents());
$compiledFile = $this->getCompiledFile().'_cache'.$this->curCacheId;
if ($this->cacheExpired('',$id,$cacheDuration)) {
$this->cacheRunning=false;
} else {
$this->cacheRunning=true;
$content=$this->getFile($compiledFile);
echo $content;
}
// getFile($fileName)
}
public function cacheEnd() {
if (!$this->cacheRunning) {
$txt = substr(ob_get_contents(), $this->curCachePosition);
$compiledFile = $this->getCompiledFile() . '_cache' . $this->curCacheId;
file_put_contents($compiledFile, $txt);
}
$this->cacheRunning=false;
}
}