hook_views_post_render(ViewExecutable $view, &$output, CachePluginBase $cache)
Post-process any rendered data.
This can be valuable to be able to cache a view and still have some level of dynamic output. In an ideal world, the actual output will include HTML comment-based tokens, and then the post process can replace those tokens. This hook can be used by themes.
Example usage. If it is known that the view is a node view and that the primary field will be a nid, you can do something like this:
And then in the post-render, create an array with the text that should go there:
strtr($output, array('<!--post-FIELD-1-->' => 'output for FIELD of nid 1');
All of the cached result data will be available in $view->result, as well, so all ids used in the query should be discoverable.
Parameters
\Drupal\views\ViewExecutable $view: The view object about to be processed.
string $output: A flat string with the rendered output of the view.
\Drupal\views\Plugin\views\cache\CachePluginBase $cache: The cache settings.
See also
Related topics
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/modules/views/views.api.php, line 854
- Describes hooks and plugins provided by the Views module.
Code
function hook_views_post_render(ViewExecutable $view, &$output, CachePluginBase $cache) { // When using full pager, disable any time-based caching if there are fewer // than 10 results. if ($view->pager instanceof Drupal\views\Plugin\views\pager\Full && $cache instanceof Drupal\views\Plugin\views\cache\Time && count($view->result) < 10) { $cache->options['results_lifespan'] = 0; $cache->options['output_lifespan'] = 0; } }
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