derhasi/cache_split

cache_split

A cache backend for Drupal to split cache items in separate backends., _(*1)

Installation

1. composer require derhasi/cache_split:dev-master
2. Enable cache_split module (e.g. drush en cache_split)
3. Change the cache backend for your bin (e.g. render) in your settings.php

<?php
$settings['cache']['bins']['render'] = 'cache.backend.split';
?>

1. Add split configuration for your bin to the settings.php:

<?php
$settings['cache_split']['render'] = [
  //..
];

See Configuration below for details., _(*2)

Configuration

The configuration for a cache bin has to be defined in the settings.php:, _(*3)

<?php
$settings['cache_split']['NAME_OF_CACHE_BIN'] = [
  //..
];

Matcher definition

Each bin can hold multiple matcher definitions, each may consists of:, _(*4)

• backend: Name of the cache backend service to use (e.g. cache.backend.database). If not given it defaults to the key of the definition.
• includes: Array of cid patterns this backend should be used for. If this is empty all cids are included (except those excluded by excludes).
• excludes: Array of cid patterns this backend should not be used for

Wildcard syntax

A cid pattern may use * to match any number of arbitrary characters., _(*5)

Fallback cache backend

A fallback backend can be defined by simply omitting includes and excludes or leaving them empty., _(*6)

Make sure the fallback backend is defined last, so the other definitions are considered., _(*7)

In case no fallback backend is specified, cache.backend.database is set as default., _(*8)

Example

<?php
$settings['cache_split'] = [
  // Splits render cache in multiple backends.
  'render' => [
    // Do not cache render results for paragraphs, as they are only rendered in
    // context of the host entity.
    [
      'backend' => 'cache.backend.null',
      'includes' => [
        'entity_view:paragraph:*'
      ],
      'excludes' => [],
    ],
    // Falls back to database backend.
    [
      'backend' => 'cache.backend.database',
    ],
  ],
];
?>