默认情况下，Make Doctrine使用结果缓存 [英] Make Doctrine use result cache by default

问题描述

我将Memcache绑定到Doctrine，似乎我必须在每个查询中显式地使用 useResultCache 。默认情况下是否有可能 true ，可以使用 useResultCache（false）不需要它？ / p>

解决方案

我知道这个问题是旧的，但我会写出我想到的最好的答案。

1）摘录您对依赖关系（即 - 使用依赖注入模式将EntityManager注入到您的类中，创建查询并使用EntityManagerInterface）

现在，或者：

a）[更好，但更长]为EntityManagerInterface创建一个新的组合相关实现，它将代理对原始entityManager的调用，将结果缓存标志设置为true：

 <？php 
 class CachedEntityManager实现EntityManagerInterface {
 
 private $ proxiedManager; 
 
 public function __construct（EntityManagerInterface $ proxiedManager）{
 $ this-> proxiedManager = $ proxiedManager; 
} 
 
 public function createQuery（$ dql =''）{
 $ query = $ this-> proxiedManager-> createQuery（$ dql）; 
 $ query-> useResultCache（true）; 
} 
 
 [...代理所有的呼叫到proxiedManager ...] 
 
} 
  

b）[不太好，但较短]扩展EntityManager类并覆盖createQuery。记住，这通常不是一个好的做法，你绝对不应该在该类中写任何东西，而是重构为a）：

 <？php 
 class CachedEntityManager extends EntityManager {
 
 public function createQuery（$ dql =''）{
 $ query = parent :: createQuery（$ dql）; 
 $ query-> useResultCache（true）; 
} 
 
} 
  

I'm binding Memcache to Doctrine and it seems I have to useResultCache explicitly in every query. Is it possible to make it true by default, with the ability to useResultCache(false) where it's not needed?

解决方案

I know this question is old, but I'll write up the best answer that comes into my mind.

1) Abstract away your dependency to interface ( i.e. - use dependency injection pattern to inject EntityManager into your class that creates queries and use EntityManagerInterface instead )

Now, either:

a) [ Better, but longer ] Create a new composition-related implementation for EntityManagerInterface, that will proxy calls to original entityManager and will set result cache flag to true:

<?php
class CachedEntityManager implements EntityManagerInterface { 

private $proxiedManager;

public function __construct(EntityManagerInterface $proxiedManager) {   
    $this->proxiedManager = $proxiedManager;    
}

public function createQuery($dql = '') {
    $query = $this->proxiedManager->createQuery($dql);
    $query->useResultCache(true);   
}

[... proxy all the calls forth to proxiedManager ...]

}

b) [ Not as good, but shorter ] Extend the EntityManager class and override the createQuery. Remember that this in general is not a good practice and you should definitely not write anything in that class anymore but instead refactor into a) :

<?php
class CachedEntityManager extends EntityManager { 

public function createQuery($dql = '') {
    $query = parent::createQuery($dql);
    $query->useResultCache(true);   
}

}

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