hook_views_pre_execute(ViewExecutable $view)
Act on the view after the query is built and just before it is executed.
Output can be added to the view by setting $view->attachment_before and $view->attachment_after.
Parameters
\Drupal\views\ViewExecutable $view: The view object about to be processed.
See also
Related topics
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/modules/views/views.api.php, line 766
- Describes hooks and plugins provided by the Views module.
Code
function hook_views_pre_execute(ViewExecutable $view) {
// Whenever a view queries more than two tables, show a message that notifies
// view administrators that the query might be heavy.
// (This action could be performed later in the execution process, but not
// earlier.)
$account = \Drupal::currentUser();
if (count($view->query->tables) > 2 && $account->hasPermission('administer views')) {
drupal_set_message(t('The view %view may be heavy to execute.', array('%view' => $view->id())), 'warning');
}
}
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