hook_entity_display_build_alter(&$build, $context)
Alter the render array generated by an EntityDisplay for an entity.
Parameters
array $build: The renderable array generated by the EntityDisplay.
array $context: An associative array containing:
- entity: The entity being rendered.
- view_mode: The view mode; for example, 'full' or 'teaser'.
- display: The EntityDisplay holding the display options.
Related topics
- Entity CRUD, editing, and view hooks
- Hooks used in various entity operations.
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/lib/Drupal/Core/Entity/entity.api.php, line 1553
- Hooks and documentation related to entities.
Code
function hook_entity_display_build_alter(&$build, $context) {
// Append RDF term mappings on displayed taxonomy links.
foreach (Element::children($build) as $field_name) {
$element = &$build[$field_name];
if ($element['#field_type'] == 'entity_reference' && $element['#formatter'] == 'entity_reference_label') {
foreach ($element['#items'] as $delta => $item) {
$term = $item->entity;
if (!empty($term->rdf_mapping['rdftype'])) {
$element[$delta]['#options']['attributes']['typeof'] = $term->rdf_mapping['rdftype'];
}
if (!empty($term->rdf_mapping['name']['predicates'])) {
$element[$delta]['#options']['attributes']['property'] = $term->rdf_mapping['name']['predicates'];
}
}
}
}
}
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