Final Class luya\admin\Bootstrap

Inheritanceluya\admin\Bootstrap
Implementsyii\base\BootstrapInterface
Uses Traitsluya\traits\CacheableTrait
Available since version2.0.0

Admin Bootstrap

The main purpose of this Bootstrap files is to have an option to run the queue command trough a "fake cronjob".

Public Methods

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Method Description Defined By
bootstrap() Bootstrap method to be called during application bootstrap stage. luya\admin\Bootstrap
deleteHasCache() Remove a value from the cache if caching is enabled. luya\traits\CacheableTrait
flushHasCache() Deletes all values from cache. luya\traits\CacheableTrait
getHasCache() Get the caching data if caching is allowed and there is any data stored for this key. luya\traits\CacheableTrait
getOrSetHasCache() Method combines both setHasCache() and getHasCache() methods to retrieve value identified by a $key, or to store the result of $closure execution if there is no cache available for the $key. luya\traits\CacheableTrait
isCachable() Check if the current configuration of the application and the property allows a caching of the language container data. luya\traits\CacheableTrait
runQueueJob() Evaluate whether the current queue job should be run or not. luya\admin\Bootstrap
setHasCache() Store cache data for a specific key if caching is enabled in this application. luya\traits\CacheableTrait

Method Details

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bootstrap() public method

Bootstrap method to be called during application bootstrap stage.

public void bootstrap ( $app )
$app yii\base\Application

The application currently running

                public function bootstrap($app)
{
    /** @var \luya\admin\Module $admin */
    $admin = $app->getModule('admin');
    // boot the queue job only if enabled and module available.
    if ($admin && $admin->autoBootstrapQueue) {
        $app->on(Application::EVENT_BEFORE_REQUEST, [$this, 'runQueueJob']);
    }
}

            
deleteHasCache() public method

Defined in: luya\traits\CacheableTrait::deleteHasCache()

Remove a value from the cache if caching is enabled.

public boolean deleteHasCache ( $key )
$key string|array

The cache identifier

return boolean

Whether delete of key has been success or not

                public function deleteHasCache($key)
{
    if ($this->isCachable()) {
        return Yii::$app->cache->delete($key);
    }
    
    return false;
}

            
flushHasCache() public method

Defined in: luya\traits\CacheableTrait::flushHasCache()

Deletes all values from cache.

public boolean flushHasCache ( )
return boolean

Whether the flush operation was successful.

                public function flushHasCache()
{
    if ($this->isCachable()) {
        return Yii::$app->cache->flush();
    }
    
    return false;
}

            
getHasCache() public method

Defined in: luya\traits\CacheableTrait::getHasCache()

Get the caching data if caching is allowed and there is any data stored for this key.

public mixed|boolean getHasCache ( $key )
$key string|array

The identifiere key, can be a string or an array which will be calculated.

return mixed|boolean

Returns the data, if not found returns false.

                public function getHasCache($key)
{
    if ($this->isCachable()) {
        $data = Yii::$app->cache->get($key);
        
        $enumKey = (is_array($key)) ? implode(",", $key) : $key;
        
        if ($data) {
            Yii::debug("Cacheable trait key '$enumKey' successfully loaded from cache.", __METHOD__);
            return $data;
        }
        Yii::debug("Cacheable trait key '$enumKey' has not been found in cache.", __METHOD__);
    }

    return false;
}

            
getOrSetHasCache() public method

Defined in: luya\traits\CacheableTrait::getOrSetHasCache()

Method combines both setHasCache() and getHasCache() methods to retrieve value identified by a $key, or to store the result of $closure execution if there is no cache available for the $key.

Usage example:

use CacheableTrait;

public function getTopProducts($count = 10)
{
    return $this->getOrSetHasCache(['top-n-products', 'n' => $count], function ($cache) use ($count) {
        return Products::find()->mostPopular()->limit(10)->all();
    }, 1000);
}
public mixed getOrSetHasCache ( $key, Closure $closure, $duration null, $dependency null )
$key mixed

A key identifying the value to be cached. This can be a simple string or a complex data structure consisting of factors representing the key.

$closure Closure

The closure that will be used to generate a value to be cached. In case $closure returns false, the value will not be cached.

$duration integer

Default duration in seconds before the cache will expire. If not set, defaultDuration value will be used. 0 means never expire.

$dependency yii\caching\Dependency

Dependency of the cached item. If the dependency changes, the corresponding value in the cache will be invalidated when it is fetched via get(). This parameter is ignored if serializer is false.

return mixed

Result of $closure execution

                public function getOrSetHasCache($key, \Closure $closure, $duration = null, $dependency = null)
{
    if (($value = $this->getHasCache($key)) !== false) {
        return $value;
    }
    
    $value = call_user_func($closure, $this);
    
    $this->setHasCache($key, $value, $dependency, $duration);
    
    return $value;
}

            
isCachable() public method

Defined in: luya\traits\CacheableTrait::isCachable()

Check if the current configuration of the application and the property allows a caching of the language container data.

public boolean isCachable ( )

                public function isCachable()
{
    if ($this->_cachable === null) {
        $this->_cachable = Yii::$app->has('cache') ? true : false;
    }

    return $this->_cachable;
}

            
runQueueJob() public method

Evaluate whether the current queue job should be run or not.

public void runQueueJob ( $event )
$event yii\base\Event

                public function runQueueJob($event)
{
    if (!$event->sender->request->isConsoleRequest) {
        // use cache to ensure this will run only every 30min
        $this->getOrSetHasCache(['admin', 'bootstrap', 'queue'], function () {
            $timestamp = Config::get(Config::CONFIG_QUEUE_TIMESTAMP);
            // if last execution has NOT been done previously (maybe trough a cronjob)
            if ((time() - $timestamp) > (60*25)) {
                Yii::debug('"Fake-Cronjob" queue run execution.');
                Yii::$app->adminqueue->run(false);
                Config::set(Config::CONFIG_QUEUE_TIMESTAMP, time());
            }
            return $timestamp;
        }, 60*30);
    }
}

            
setHasCache() public method

Defined in: luya\traits\CacheableTrait::setHasCache()

Store cache data for a specific key if caching is enabled in this application.

public boolean setHasCache ( $key, $value, $dependency null, $cacheExpiration null )
$key string|array

The identifier key or a array to store complex keys

$value mixed

The value to store in the cache component.

$dependency yii\caching\Dependency|array

Dependency of the cached item. If the dependency changes, the corresponding value in the cache will be invalidated when it is fetched via get(). This parameter is ignored if $serializer is false. You can also define an array with defintion which will generate the Object instead of object is provided.

$cacheExpiration

Integer The time in seconds before the cache data expires, 0 means never expire.

return boolean

Whether set has been success or not

                public function setHasCache($key, $value, $dependency = null, $cacheExpiration = null)
{
    if ($this->isCachable()) {
        if (is_array($dependency)) {
            $dependency = Yii::createObject($dependency);
        }
        
        return Yii::$app->cache->set($key, $value, is_null($cacheExpiration) ? $this->_cacheExpiration : $cacheExpiration, $dependency);
    }
    
    return false;
}