Drupal 8 page template suggestion by path alias, here is a snippet that I wrote for adding a couple of extra page template suggestions for my theme.
Drupal 8 page template suggestion by path alias
Basically What I wanted to do is to have two extra rules for page template suggestions:
- Template suggestion by content type
page--contettype.html.twig - For “page” content type have page templates by
- page url: /about =>
page--alias--about.html.twig - page url: /about/us =>
page--alias--about-us.html.twig
- page url: /about =>
This helped me come up with nice looking templates for custom post types and be able to add special things in special pages.
Here is the hook I wrote YOURTHEME_theme_suggestions_page_alter in my theme’s YOURTHEME.theme file. (Replace YOURTHEME with your theme’s name)
/**
* Implements hook_theme_suggestions_HOOK_alter().
* Page template for content type page--contettype.html.twig
* For "page" content type we refine it further by adding page--alias--"the-alias"
* example: page content type wit alias "about/us" => "page--alias--about-us" template file
*/
function YOURTHEME_theme_suggestions_page_alter(array &$suggestions, array $variables) {
// Response codes for Access Denied and Page Not Found.
$system_codes = [403, 404];
if (Drupal::request()->attributes->get('exception') &&
$status_code = Drupal::request()->attributes->get('exception')->getStatusCode()) {
// Add Basic Page suggestion if one of above response codes.
if (in_array($status_code, $system_codes)) {
$suggestions[] = 'page';
}
}
if ($node = Drupal::routeMatch()->getParameter('node')) {
$content_type = $node->bundle();
$suggestions[] = 'page__'.$content_type;
// for "page" content type only
// if ($content_type == 'page'){
if (in_array($content_type, array('webform','page'))) {
$current_path = Drupal::service('path.current')->getPath();
$alias = Drupal::service('path.alias_manager')->getAliasByPath($current_path);
if ($alias != '') {
// break up the alias "/about/us" => "", "about", "" ,"us"
$parts = explode('/', $alias);
// we only start suggestion with one "-" because first "/" will become extra "-"
$suggestion = 'page__alias';
foreach ($parts as $part) {
// subsequent suggestions get appended
$suggestion .= "_" . "$part";
}
// turn "-" in "_"
$suggestion = str_replace("-", "_", $suggestion);
$suggestions[] = $suggestion;
}
}
}
}Cheers!
Thank man, it is worked!
Hi Ashique,
Thank you for your comment. Just after you commented I remembered that I have further refined the code snippet in my project.
1. I added Error Handling for 403, 404 see the If statement at the beginning
2. I added the lines
// turn "-" in "_" $suggestion = str_replace("-", "_", $suggestion);because I was having some problems when the alias had “-” character in it.
See if you need to add the newer updated code.
Cheers,
Lehel