function hook_page_attachments
hook_page_attachments(array &$attachments)
Add attachments (typically assets) to a page before it is rendered.
Use this hook when you want to conditionally add attachments to a page.
If you want to alter the attachments added by other modules or if your module depends on the elements of other modules, use hook_page_attachments_alter() instead, which runs after this hook.
If you try to add anything but #attached and #cache to the array, an exception is thrown.
Parameters
array &$attachments: An array that you can add attachments to.
See also
Related topics
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/lib/Drupal/Core/Render/theme.api.php, line 1015
- Hooks and documentation related to the theme and render system.
Code
function hook_page_attachments(array &$attachments) { // Unconditionally attach an asset to the page. $attachments['#attached']['library'][] = 'core/domready'; // Conditionally attach an asset to the page. if (!\Drupal::currentUser()->hasPermission('may pet kittens')) { $attachments['#attached']['library'][] = 'core/jquery'; } }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Render!theme.api.php/function/hook_page_attachments/8.1.x