tide_data_driven_component.module

<?php

/**
 * @file
 * Data Driven Component module functionality.
 */

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;

/**
 * Set dynamic allowed values for the data drive component field.
 *
 * @param \Drupal\field\Entity\FieldStorageConfig $definition
 *   The field definition.
 * @param \Drupal\Core\Entity\ContentEntityInterface|null $entity
 *   The entity being created if applicable.
 * @param bool $cacheable
 *   Boolean indicating if the results are cacheable.
 *
 * @return array
 *   An array of possible key and value options.
 *
 * @see options_allowed_values()
 */
function tide_data_driven_component_items_list(FieldStorageConfig $definition, ContentEntityInterface $entity = NULL, $cacheable) {
  $options = [
    'myvic_vicfreewifi' => 'Vic Free Wifi Map',
    'myvic_family_violence_women_programs' => 'Prevention of Family Violence Against Women Programs Map',
  ];
  $terms = \Drupal::entityTypeManager()->getStorage('taxonomy_term')->loadByProperties([
    'vid' => 'data_driven_component',
  ]);
  if ($terms) {
    $options = [];
    foreach ($terms as $term) {
      if ($term->hasField('field_machine_name') && !$term->field_machine_name->isEmpty()) {
        $options[$term->field_machine_name->value] = $term->label();
      }
    }
  }
  return $options;
}

/**
 * Implements hook_entity_bundle_field_info_alter().
 */
function tide_data_driven_component_entity_bundle_field_info_alter(&$fields, EntityTypeInterface $entity_type, $bundle) {
  if ($entity_type->id() == 'taxonomy_term' && $bundle == 'data_driven_component') {
    if (!empty($fields['field_machine_name'])) {
      $fields['field_machine_name']->addConstraint('TideMachineNameField');
    }
  }
}

/**
 * Sets the default value for the data driven component field.
 *
 * @param \Drupal\Core\Entity\ContentEntityInterface $entity
 *   The entity being created.
 * @param \Drupal\field\Entity\FieldConfig $config
 *   The field config definition.
 *
 * @return array
 *   An array of default value keys with each entry keyed with the “value” key.
 *
 * @see \Drupal\Core\Field\FieldConfigBase::getDefaultValue()
 */
function tide_data_driven_component_default_value(
  ContentEntityInterface $entity,
  FieldConfig $config
) {
  $default = 'myvic_vicfreewifi';

  return [
    ['value' => $default],
  ];
}