如何在doctrine 2和zend framework 2中使用缓存? [英] How to use the cache in doctrine 2 and zend framework 2?

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问题描述

我需要一些帮助,我已经去了很多,但没有结果:/
我如何利用查询和他们的结果存储在memcache,我正在使用zend框架2和原则2 ?这是我在module.config.php中的配置:

  // Doctrine config 
'doctrine'=> array(
'driver'=> array(
__NAMESPACE__。'_driver'=> array(
'class'=>'Doctrine\ORM\Mapping\Driver\\ \\ AnnotationDriver',
'paths'=>数组(__ DIR__。'/../src/'。__NAMESPACE__。'/ Entity')
),
'orm_default'=>数组(
'drivers'=>数组(
__NAMESPACE__。'\Entity'=> __NAMESPACE__'_driver'
),


/ *****启用memcache **** /
'configuration'=>数组(
'orm_default'=>数组(
'metadata_cache'= >'mycache',
'query_cache'=>'mycache',
'result_cache'=>'mycache',


/ ** ** end **** /

),

'service_manager'=>数组(
'工厂'=>数组(
'translator'=>'Zend\I18n\Translator\TranslatorServiceFactory',
'navigation'=>'Zend\\ \\ Navigation\Service\DefaultNavigationFactory',
'doctrine.cache.mycache'=> function($ sm){
$ cache = new \Doctrine\Common\Cache\MemcacheCache ();
$ memcache = new \Memcache();
$ memcache-> connect('localhost',11211);
$ cache-> setMemcache($ memcache);
return $ cache;
},
),
),


$ b谢谢你的任何想法或链接。
问候。

解决方案

我想你使用 DoctrineModule ,对吧?
将您的配置更改为:

  // Doctrine config 
'教义'=> array(
'driver'=> array(
__NAMESPACE__。'_driver'=> array(
'class'=>'Doctrine\ORM\Mapping\Driver\\ \\ AnnotationDriver',
'paths'=>数组(__ DIR__。'/../src/'。__NAMESPACE__。'/ Entity')
),
'orm_default'=>数组(
'drivers'=>数组(
__NAMESPACE__。'\Entity'=> __NAMESPACE__'_driver'
),
),
) ,
/ *****启用memcache **** /
'configuration'=>数组(
'orm_default'=>数组(
'metadata_cache' ='memcache',
'query_cache'=>'memcache',
'result_cache'=>'memcache',

),
/ **** end **** /
'cache'=>数组(
'memcache'=>数组(
'instance'=>'doctrine.cache.mycache',
),
),
),

'service_manager'=> array(
'factoryories'=> array(
'doctrine.cache.mycache'=> function($ sm){
$ cache = new \Doctrine\Common\ cache \MemcacheCache();
$ memcache = new \Memcache();
$ memcache-> connect('localhost',11211);
$ cache-> setMemcache $ memcache);
return $ cache;
},
),
),

这是如何工作的?



在模块配置中,每个支持的缓存适配器都有预定义的配置,包含内存缓存。有了这个配置,你在说使用memcache进行缓存:

 'configuration'=> ;数组(
'orm_default'=>数组(
'metadata_cache'=>'memcache',
'query_cache'=>'memcache',
'result_cache'= >'memcache',

),

此缓存需要配置Memcache实例和此配置说Memcache实例在ServiceManager中使用key'doctrine.cache.mycache'

 'cache'=>数组(
'memcache'=>数组(
'instance'=>'doctrine.cache.mycache',
),
),

更新:



如何使用结果缓存(文件):

  $ cache = $ entityManager-> getConfiguration() - > getResultCacheImpl(); 
$ cacheItemKey ='my-item';

//测试缓存中是否存在项
if($ cache-> contains($ cacheItemKey)){
$ item = $ cache-> fetch($ cacheItemKey); //从缓存中检索项目
} else {
$ item = $ repository-> find($ id); //从存储库检索项目
$ cache-> save($ cacheItemKey,$ item); //保存项缓存
}


plz i need some help here , i've goolged a lot but without result :/ how can i exploit the query and their result stored in the memcache , i'm working with zend framework 2 and doctrine 2 ? and here is my configuration in module.config.php :

 // Doctrine config
     'doctrine' => array(
        'driver' => array(
            __NAMESPACE__ . '_driver' => array(
                'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
                'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')
            ),
            'orm_default' => array(
                'drivers' => array(
                    __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
                ),
        )
            ),
            /***** enabling the memcache ****/
            'configuration' => array(
                'orm_default' => array(
                    'metadata_cache'    => 'mycache',
                    'query_cache'       => 'mycache',
                    'result_cache'      => 'mycache',

            )
            /**** end ****/
        )
    ),

    'service_manager' => array(
        'factories' => array(
            'translator' => 'Zend\I18n\Translator\TranslatorServiceFactory',
            'navigation' => 'Zend\Navigation\Service\DefaultNavigationFactory',
            'doctrine.cache.mycache' => function ($sm) {
                 $cache = new \Doctrine\Common\Cache\MemcacheCache();
                 $memcache = new \Memcache();
                 $memcache->connect('localhost', 11211);
                 $cache->setMemcache($memcache);
                 return $cache;
         },
        ),
    ),

any idea or link is appeciated , thanks. Regards.

解决方案

I suppose You are using DoctrineModule, right? Change your configuration to this:

// Doctrine config
'doctrine' => array(
    'driver' => array(
        __NAMESPACE__ . '_driver' => array(
            'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
            'paths' => array(__DIR__ . '/../src/' . __NAMESPACE__ . '/Entity')
        ),
        'orm_default' => array(
            'drivers' => array(
                __NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
            ),
        ),
    ),
    /***** enabling the memcache ****/
    'configuration' => array(
        'orm_default' => array(
            'metadata_cache'    => 'memcache',
            'query_cache'       => 'memcache',
            'result_cache'      => 'memcache',
        )
    ),
    /**** end ****/
    'cache' => array(
        'memcache' => array(
            'instance' => 'doctrine.cache.mycache',
        ),
    ),
),

'service_manager' => array(
    'factories' => array(
        'doctrine.cache.mycache' => function ($sm) {
            $cache = new \Doctrine\Common\Cache\MemcacheCache();
            $memcache = new \Memcache();
            $memcache->connect('localhost', 11211);
            $cache->setMemcache($memcache);
            return $cache;
        },
    ),
),

How does this work?

In module configuration are predefined configurations for every supported cache adapter, including memcache. With this configuration, you are saying "use memcache for caching":

'configuration' => array(
    'orm_default' => array(
        'metadata_cache'    => 'memcache',
        'query_cache'       => 'memcache',
        'result_cache'      => 'memcache',
    )
),

This cache needs configured Memcache instance and this config saying "Memcache instance is available in ServiceManager with key 'doctrine.cache.mycache'"

'cache' => array(
    'memcache' => array(
        'instance' => 'doctrine.cache.mycache',
    ),
),

Update:

How to use result cache (documentation):

$cache = $entityManager->getConfiguration()->getResultCacheImpl();
$cacheItemKey = 'my-item';

// test if item exists in the cache
if ($cache->contains($cacheItemKey)) {
    $item = $cache->fetch($cacheItemKey); // retrieve item from cache
} else {
    $item = $repository->find($id); // retrieve item from repository
    $cache->save($cacheItemKey, $item); // save item to cache
}

这篇关于如何在doctrine 2和zend framework 2中使用缓存?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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