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[Cache] Make sure the chain cache configuration works #11813

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Jun 25, 2019
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[Cache] Make sure the chain cache configuration works #11813

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39 changes: 28 additions & 11 deletions cache.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -413,16 +413,22 @@ case the value needs to be recalculated.
cache:
pools:
my_cache_pool:
adapter: app.my_cache_chain_adapter
adapter: cache.adapter.psr6
provider: app.my_cache_chain_adapter
cache.my_redis:
adapter: cache.adapter.redis
provider: 'redis://user:password@example.com'
cache.apcu:
adapter: cache.adapter.apcu
cache.array:
adapter: cache.adapter.array


services:
app.my_cache_chain_adapter:
class: Symfony\Component\Cache\Adapter\ChainAdapter
arguments:
- ['cache.adapter.array', 'cache.my_redis', 'cache.adapter.file']
- ['@cache.array', '@cache.apcu', '@cache.my_redis']
- 31536000 # One year

.. code-block:: xml
Expand All @@ -436,18 +442,20 @@ case the value needs to be recalculated.
https://symfony.com/schema/dic/services/services-1.0.xsd">

<framework:config>
<framework:cache default_memcached_provider="memcached://localhost">
<framework:pool name="my_cache_pool" adapter="app.my_cache_chain_adapter"/>
<framework:cache>
<framework:pool name="my_cache_pool" adapter="cache.adapter.psr6" provider="app.my_cache_chain_adapter"/>
<framework:pool name="cache.my_redis" adapter="cache.adapter.redis" provider="redis://user:password@example.com"/>
<framework:pool name="cache.apcu" adapter="cache.adapter.apcu"/>
<framework:pool name="cache.array" adapter="cache.adapter.array"/>
</framework:cache>
</framework:config>

<services>
<service id="app.my_cache_chain_adapter" class="Symfony\Component\Cache\Adapter\ChainAdapter">
<argument type="collection">
<argument type="service" value="cache.adapter.array"/>
<argument type="service" value="cache.array"/>
<argument type="service" value="cache.apcu"/>
<argument type="service" value="cache.my_redis"/>
<argument type="service" value="cache.adapter.file"/>
</argument>
<argument>31536000</argument>
</service>
Expand All @@ -461,28 +469,37 @@ case the value needs to be recalculated.
'cache' => [
'pools' => [
'my_cache_pool' => [
'adapter' => 'app.my_cache_chain_adapter',
'adapter' => 'cache.adapter.psr6',
'provider' => 'app.my_cache_chain_adapter',
],
'cache.my_redis' => [
'adapter' => 'cache.adapter.redis',
'provider' => 'redis://user:password@example.com',
],
'cache.apcu' => [
'adapter' => 'cache.adapter.apcu',
],
'cache.array' => [
'adapter' => 'cache.adapter.array',
],
],
],
]);

$container->getDefinition('app.my_cache_chain_adapter', \Symfony\Component\Cache\Adapter\ChainAdapter::class)
->addArgument([
new Reference('cache.adapter.array'),
new Reference('cache.array'),
new Reference('cache.apcu'),
new Reference('cache.my_redis'),
new Reference('cache.adapter.file'),
])
->addArgument(31536000);

.. note::

In this configuration there is a ``cache.my_redis`` pool that is used as an
adapter in the ``app.my_cache_chain_adapter``
In this configuration the ``my_cache_pool`` pool is using the ``cache.adapter.psr6``
adapter and the ``app.my_cache_chain_adapter`` service as a provider. That is
because ``ChainAdapter`` does not support the ``cache.pool`` tag. So it is decorated
with the ``ProxyAdapter``.


Clearing the Cache
Expand Down