localgov_services-2.1.19/modules/localgov_services_navigation/localgov_services_navigation.module

<?php

/**
 * @file
 * Local Government Services section navigation.
 *
 *   Some of the functionality is related to field that a reused outside the
 *   Services node bundles. Within the services section navigation integrates
 *   the bundles, so this is an attempt to collect this functionality together,
 *   and in the future make refactoring it easier.
 */

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\FieldConfigInterface;
use Drupal\localgov_services_navigation\EntityChildRelationshipUi;
use Drupal\pathauto\Entity\PathautoPattern;

/**
 * Implements hook_theme().
 */
function localgov_services_navigation_theme() {
  return [
    'localgov_services_navigation_children' => [
      'children' => 'render_element',
    ],
    'localgov_services_navigation_child' => [
      'variables' => [
        'title' => '',
        'type' => '',
        'url' => '',
        'topics' => [],
        'id' => '',
      ],
    ],
  ];
}

/**
 * Implements hook_preprocess_HOOK().
 */
function template_preprocess_localgov_services_navigation_child(&$variables) {
  $variables['reference'] = $variables['title'] . ' (' . $variables['id'] . ')';
  $variables['topics_list'] = implode(', ', $variables['topics']);
}

/**
 * Implements hook_field_widget_single_element_WIDGET_TYPE_form_alter().
 */
function localgov_services_navigation_field_widget_single_element_entity_reference_autocomplete_form_alter(&$element, FormStateInterface $form_state, $context) {
  if (!empty($element['target_id']) && $element['target_id']['#selection_handler'] == 'localgov_services') {
    $element['target_id']['#value_callback'] = [
      'Drupal\localgov_services_navigation\EntityReferenceValue',
      'valueCallback',
    ];
  }
}

/**
 * Implements hook_pathauto_pattern_alter().
 */
function localgov_services_navigation_pathauto_pattern_alter(PathautoPattern $pattern, array $context) {
  // If pathauto isn't set to include this entity into services hierarchy, but
  // it has opt-ed in with the field add the (optional) parent to the path.
  $entity = reset($context['data']);
  assert($entity instanceof ContentEntityInterface);
  if ($entity->hasField('localgov_services_parent') && strpos($pattern->getPattern(), '[node:localgov_services_parent:entity:url:relative]') === FALSE) {
    $pattern->setPattern('[node:localgov_services_parent:entity:url:relative]/' . $pattern->getPattern());
  }
}

/**
 * Implements hook_entity_extra_field_info().
 */
function localgov_services_navigation_entity_extra_field_info() {
  return \Drupal::service('class_resolver')
    ->getInstanceFromDefinition(EntityChildRelationshipUi::class)
    ->entityExtraFieldInfo();
}

/**
 * Implements hook_form_alter().
 */
function localgov_services_navigation_form_alter(array &$form, FormStateInterface $form_state, $form_id) {
  return \Drupal::service('class_resolver')
    ->getInstanceFromDefinition(EntityChildRelationshipUi::class)
    ->formAlter($form, $form_state, $form_id);
}

/**
 * Implements hook_ENTITY_TYPE_insert().
 */
function localgov_services_navigation_field_config_insert(FieldConfigInterface $field) {
  if (
    $field->getName() == 'localgov_services_parent' &&
    $field->getTargetEntityTypeId() == 'node' &&
    ($destinations = FieldConfig::loadByName('node', 'localgov_services_landing', 'localgov_destinations'))
  ) {
    $settings = $destinations->getSetting('handler_settings');
    $settings['target_bundles'][$field->getTargetBundle()] = $field->getTargetBundle();
    $destinations->setSetting('handler_settings', $settings);
    $destinations->save();
  }
}

/**
 * Implements hook_ENTITY_TYPE_delete().
 */
function localgov_services_navigation_field_config_delete(FieldConfigInterface $field) {
  if (
    $field->getName() == 'localgov_services_parent' &&
    $field->getTargetEntityTypeId() == 'node' &&
    ($destinations = FieldConfig::loadByName('node', 'localgov_services_landing', 'localgov_destinations'))
  ) {
    $settings = $destinations->getSetting('handler_settings');
    unset($settings['target_bundles'][$field->getTargetBundle()]);
    $destinations->setSetting('handler_settings', $settings);
    $destinations->save();
  }
}