Views Advanced Cache

The views advanced cache module provides a cache plugin that allows more precise manipulation of cache tags and cache contexts. It is intended for advanced technical users with an understanding of the Drupal 8 Cache API. Misconfiguration can lead to incorrect or stale cache results including bypassing of standard content access restrictions.

Features

• A views cache plugin that allows adding and removing cache metadata (contexts, tags, max-age).
• Dynamic cache tags based on argument token replacements.

Example Use Cases

Override the node_list cache tag

By default views adds a node_list cache tag to all node views and invalidates cache entries with this tag whenever ANY node is created or updated. By overriding the default node_list cache tag with a bundle-specific alternative we can improve the cache HIT rate of views when unrelated content is saved.

The code below will invalidate the custom cache tag on node CRUD events.

/**
 * Invalidate a "my_custom:node_list:{bundle}" cache tag on node save.
 */
function my_custom_module_node_presave(NodeInterface $node) {
  $tags = ['my_custom:node_list:' . $node->getType()];
  Cache::invalidateTags($tags);
}

And the below cache tag settings will cache a view until page nodes are saved.

- node_list
my_custom:node_list:page

Add / Remove cache contexts

Modifying cache contexts is a riskier proposition as incorrect configuration may result in incorrect results and not just stale cached results. USE WITH CAUTION a solid knowledge of the cache api cache contexts and views cache configs is recommended.

This option allows altering of a view display plugin's cache_metadata contexts. An example use is to limit the url.query_args in a rest_export view as below:

- url.query_args
url.query_args:page
url.query_args:items_per_page
url.query_args:offset
url.query_args:my_custom_filter

This can be used to override the default pager caching per all page query arguments instead only considering those relevent to the view.

Related Projects

• Views Custom Cache Tags