From a4046bc9862f136bd136103cc1e2580af2139acf Mon Sep 17 00:00:00 2001
From: "Alexander M. Turek" <me@derrabus.de>
Date: Thu, 9 Sep 2021 18:04:36 +0200
Subject: [PATCH] Document the removal of Doctrine Cache

---
 cache.rst                                     |  2 +-
 components/cache.rst                          |  7 ++--
 .../cache/adapters/doctrine_adapter.rst       | 42 -------------------
 3 files changed, 4 insertions(+), 47 deletions(-)
 delete mode 100644 components/cache/adapters/doctrine_adapter.rst

diff --git a/cache.rst b/cache.rst
index 0aebff384bc..0538e45f5cd 100644
--- a/cache.rst
+++ b/cache.rst
@@ -27,7 +27,7 @@ The following example shows a typical usage of the cache::
     // ... and to remove the cache key
     $pool->delete('my_cache_key');
 
-Symfony supports Cache Contracts, PSR-6/16 and Doctrine Cache interfaces.
+Symfony supports Cache Contracts and PSR-6/16 interfaces.
 You can read more about these at the :doc:`component documentation </components/cache>`.
 
 .. deprecated:: 5.4
diff --git a/components/cache.rst b/components/cache.rst
index 29c1f0fd42b..1dae4a3f320 100644
--- a/components/cache.rst
+++ b/components/cache.rst
@@ -16,9 +16,8 @@ The Cache Component
 
 .. tip::
 
-    The component also contains adapters to convert between PSR-6, PSR-16 and
-    Doctrine caches. See :doc:`/components/cache/psr6_psr16_adapters` and
-    :doc:`/components/cache/adapters/doctrine_adapter`.
+    The component also contains adapters to convert between PSR-6 and PSR-16.
+    See :doc:`/components/cache/psr6_psr16_adapters`.
 
     .. deprecated:: 5.4
 
@@ -164,7 +163,7 @@ concepts:
 **Adapter**
     It implements the actual caching mechanism to store the information in the
     filesystem, in a database, etc. The component provides several ready to use
-    adapters for common caching backends (Redis, APCu, Doctrine, PDO, etc.)
+    adapters for common caching backends (Redis, APCu, PDO, etc.)
 
 Basic Usage (PSR-6)
 -------------------
diff --git a/components/cache/adapters/doctrine_adapter.rst b/components/cache/adapters/doctrine_adapter.rst
deleted file mode 100644
index 81826446f81..00000000000
--- a/components/cache/adapters/doctrine_adapter.rst
+++ /dev/null
@@ -1,42 +0,0 @@
-.. index::
-    single: Cache Pool
-    single: Doctrine Cache
-
-.. _doctrine-adapter:
-
-Doctrine Cache Adapter
-======================
-
-.. deprecated:: 5.4
-
-    The ``DoctrineAdapter`` and ``DoctrineProvider`` classes were deprecated in Symfony 5.4
-    and it will be removed in Symfony 6.0.
-
-This adapter wraps any class extending the `Doctrine Cache`_ abstract provider, allowing
-you to use these providers in your application as if they were Symfony Cache adapters.
-
-This adapter expects a ``\Doctrine\Common\Cache\CacheProvider`` instance as its first
-parameter, and optionally a namespace and default cache lifetime as its second and
-third parameters::
-
-    use Doctrine\Common\Cache\CacheProvider;
-    use Doctrine\Common\Cache\SQLite3Cache;
-    use Symfony\Component\Cache\Adapter\DoctrineAdapter;
-
-    $provider = new SQLite3Cache(new \SQLite3(__DIR__.'/cache/data.sqlite'), 'youTableName');
-
-    $cache = new DoctrineAdapter(
-
-        // a cache provider instance
-        CacheProvider $provider,
-
-        // a string prefixed to the keys of the items stored in this cache
-        $namespace = '',
-
-        // the default lifetime (in seconds) for cache items that do not define their
-        // own lifetime, with a value 0 causing items to be stored indefinitely (i.e.
-        // until the database table is truncated or its rows are otherwise deleted)
-        $defaultLifetime = 0
-    );
-
-.. _`Doctrine Cache`: https://github.com/doctrine/cache