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Connect Doctrine to memcached pool

Maybe someone knows how to hook Doctrine to memcached pool to use it as cache driver?

I checked the official package documentation and many other sources, but couldn't find any examples of such a connection.

Also due to the source code, I couldn't find any use cases for the pool, but maybe I am missing something.

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Not tested, but the following should work:

in app / config / parameters.yml, set / add

parameters:
    memcached.servers:
        - { host: 127.0.0.1, port: 11211 }
        - { host: 127.0.0.2, port: 11211 }

in app / config / config.yml set / add

services:
    memcache:
        # class 'Memcache' or 'Memcached', depending on which PHP module you use
        class: Memcache
        calls:
            - [ addServers, [ %memcached.servers% ]]

    doctrine.cache.memcached:
        class: Doctrine\Common\Cache\MemcachedCache
        calls:
            - [setMemcached, [@memcached]]


in app / config / config_prod.yml, set

doctrine:
    orm:
        metadata_cache_driver:
            type: service
            id: doctrine.cache.memcached
        query_cache_driver:
            type: service
            id: doctrine.cache.memcached
        result_cache_driver:
            type: service
            id: doctrine.cache.memcached

As I said, I cannot test it, but it is a combination of several methods known to work.

UPDATE:, updated based on CrazySquirrel results.

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Thanks to lxg for your ideas. I have built the correct configuration using your ideas. Below you will find the correct definition of a service:

app config:

result_cache_driver:
        type: service
        id:  doctrine.cache.memcached


service.yml

memcached:
  class: Memcached
  calls:
      - [ addServers, [ %memcached_servers% ]]

doctrine.cache.memcached:
      class: Doctrine\Common\Cache\MemcachedCache
      calls:
        - [setMemcached, [@memcached]]
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