Drupal 8

Documenting my findings about Drupal 8 here.

By Phil Frilling, 8 November, 2016

Drupal 8: Redirecting a form based on a field value.

I needed to redirect the user register form based on a role that the user wanted to apply for.

Tags

By Phil Frilling, 19 October, 2016

Drupal 8: Add button class to the read more link of a node

I stumbled across this solution to add attributes to the read more links of a node.


/**
 * Implements template_preprocess_links()
 */
function MYTHEME_preprocess_links(&$variables) {
  $variables['links']['node-readmore']['link']['#options'][

Tags

By Phil Frilling, 18 October, 2016

Drupal 8: Using Composer to mange a new Drupal 8 Site.

Need to get out of the Drush mindset and into the Composer mindset when building new Drupal 8 projects. Some useful links that will help explain the process: - https://www.lullabot.com/articles/goodbye-drush-make-hello-composer - https://glamanate.com/blog/managing-your-drupal-project-composer

Tags

By Phil Frilling, 7 October, 2016

Drupal 8: Theme suggestions for content type AND view mode.

I was trying to theme a specific vocabulary and a specific view mode and the suggestions, by default, didn't allow for this.

Tags

By Phil Frilling, 23 September, 2016

Drupal 8: Cautions in Configuration Management

I was working on a new Drupal 8 site and had a new geolocation view setup to show locations on a Google map. Everything was working well, then I decided I wanted to add a new field to the node and include that field in the view. After adding the field to the view, I decided against using it and deleted the field from the node (before removing it from the view). This, in turn, deleted the entire view, which cost me a days worth of work!

Tags

By Phil Frilling, 2 September, 2016

Drupal 8: Add a class to a file fields link.

I needed to add a 'button' class to a file field link and ran into the following issue: https://www.drupal.org/node/2575427 I was unable to alter the actual anchor within the twig template.

Tags

By Phil Frilling, 31 August, 2016

Drupal 8: Limit an image field display in teaser mode to one image


/**
 * Implements template_process_field().
 */
function THEME_preprocess_field(&$variables) {
  $element = $variables['element'];
  // Field type image
  if ($variables['field_name'] == 'FIELD_IMAGE' && $elemen

Drupal 8: Get the raw taxonomy term name.


/**
 * Implements template_preprocess_taxonomy_term().
 */
function THEME_preprocess_taxonomy_term(&$variables) {
  // Add the term name as a variable to use as a class in the twig file.
  $variables['term_name'] = $variables['term']->label();
}

Drupal 8: Add view mode suggestion for taxonomy terms.


/**
 * Implements hook_theme_suggestions_alter().
 */
function THEME_theme_suggestions_alter(&$suggestions, $variables, $hook) {
  switch ($hook) {
    case 'taxonomy_term':
      // Add a view mode suggestion for taxonomy terms.
      $suggestions[]

Drupal 8: Get machine name of a node in template_preprocess_node()


/**
 * Implements template_preprocess_node().
 */
function THEME_preprocess_node(&$variables) {
  // Return the machine name of the node.
  $variables['node']->bundle();
}