entity_extra_field.module in Entity Extra Field 8

The hook implementation for the entity extra field module.

File

entity_extra_field.module

<?php

/**
 * @file
 * The hook implementation for the entity extra field module.
 */
use Drupal\Core\Entity\ContentEntityFormInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Url;
use Drupal\entity_extra_field\Entity\EntityExtraFieldInterface;

/**
 * Implements hook_entity_extra_field_info().
 */
function entity_extra_field_entity_extra_field_info() {
  $field_info = [];
  foreach (entity_extra_field_storage()
    ->loadMultiple() as $extra_field) {
    if (!$extra_field instanceof EntityExtraFieldInterface) {
      continue;
    }
    $display_type = $extra_field
      ->getDisplayType();
    if (!in_array($display_type, [
      'view',
      'form',
    ])) {
      continue;
    }
    $display_type = $display_type === 'view' ? 'display' : $display_type;
    $field_name = $extra_field
      ->name();
    $entity_type_id = $extra_field
      ->getBaseEntityTypeId();
    $entity_bundle_id = $extra_field
      ->getBaseBundleTypeId();
    $field_info[$entity_type_id][$entity_bundle_id][$display_type][$field_name] = [
      'label' => $extra_field
        ->label(),
      'description' => $extra_field
        ->description(),
      'weight' => 0,
    ];
  }
  return $field_info;
}

/**
 * Implements hook_entity_view().
 */
function entity_extra_field_entity_view(array &$build, \Drupal\Core\Entity\EntityInterface $entity, \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display, $view_mode) {
  entity_extra_field_display('view', $build, $entity, $display);
}

/**
 * Implements hook_form_alter().
 */
function entity_extra_field_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
  $form_object = $form_state
    ->getFormObject();
  if (!$form_object instanceof ContentEntityFormInterface) {
    return;
  }
  $entity = $form_object
    ->getEntity();
  $display = $form_object
    ->getFormDisplay($form_state);
  entity_extra_field_display('form', $form, $entity, $display);
}

/**
 * Implements hook_theme().
 */
function entity_extra_field_theme($existing, $type, $theme, $path) {
  return [
    'entity_extra_field' => [
      'render element' => 'element',
      'path' => $path . '/templates',
      'file' => 'entity_extra_field.theme',
      'template' => 'entity-extra-field',
    ],
  ];
}

/**
 * Entity extra field display.
 *
 * @param $type
 *   The display type, (e.g. view, form).
 * @param $build
 *   An array of elements to attach the extra field.
 * @param \Drupal\Core\Entity\EntityInterface $entity
 *   An entity instance.
 * @param \Drupal\Core\Entity\Display\EntityDisplayInterface $display
 *   An entity display instance.
 *
 * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
 * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
 * @throws \Drupal\Component\Plugin\Exception\PluginException
 */
function entity_extra_field_display($type, &$build, \Drupal\Core\Entity\EntityInterface $entity, \Drupal\Core\Entity\Display\EntityDisplayInterface $display) {
  $contexts = [];
  $storage = entity_extra_field_storage();
  $extra_field_ids = $storage
    ->getQuery()
    ->condition('display.type', $type)
    ->condition('base_bundle_type_id', $entity
    ->bundle())
    ->condition('base_entity_type_id', $entity
    ->getEntityTypeId())
    ->execute();
  if (!empty($extra_field_ids)) {
    $contexts[$entity
      ->getEntityTypeId()] = $entity;
    $extra_fields = $storage
      ->loadMultiple(array_values($extra_field_ids));

    /** @var \Drupal\entity_extra_field\Entity\EntityExtraField $extra_field */
    foreach ($extra_fields as $extra_field) {
      $contexts[$extra_field
        ->getEntityTypeId()] = $extra_field;
      $all_conditions_pass = $extra_field
        ->getFieldTypeConditionsAllPass();
      if (!$extra_field instanceof EntityExtraFieldInterface || !$extra_field
        ->hasDisplayComponent($display) || !$extra_field
        ->hasConditionsBeenMet($contexts, $all_conditions_pass)) {
        continue;
      }
      $build[$extra_field
        ->name()] = $extra_field
        ->build($entity, $display);
      if ($attachments = $extra_field
        ->getBuildAttachments()) {
        $build[$extra_field
          ->name()]['#attached'] = $attachments;
      }
      $build[$extra_field
        ->name()]['#cache']['tags'] = [
        'entity_extra_field',
        "entity_extra_field:{$type}.{$entity->getEntityTypeId()}.{$entity->bundle()}",
      ];
    }
  }
}

/**
 * Get entity extra field storage.
 *
 * @return \Drupal\Core\Entity\EntityStorageInterface
 *   The entity extra field storage.
 *
 * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
 * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
 */
function entity_extra_field_storage() {
  return \Drupal::entityTypeManager()
    ->getStorage('entity_extra_field');
}

/**
 * Implements hook_theme_suggestions_HOOK().
 */
function entity_extra_field_theme_suggestions_entity_extra_field(array $variables) {
  $original = $variables['theme_hook_original'];
  $view_mode = $variables['element']['#view_mode'];
  $field = $variables['element']['#field'];
  $entity_type_id = $field
    ->getBaseEntityTypeId();
  $bundle_id = $field
    ->getBaseBundleTypeId();
  $field_name = $field
    ->name();
  $base_suggestion = $original . '__' . $entity_type_id . '__' . $bundle_id;
  $suggestions = [];
  $suggestions[] = $base_suggestion;
  $suggestions[] = $base_suggestion . '__' . $field_name;
  $suggestions[] = $base_suggestion . '__' . $field_name . '__' . $view_mode;
  return $suggestions;
}

Functions

Name	Description
entity_extra_field_display	Entity extra field display.
entity_extra_field_entity_extra_field_info	Implements hook_entity_extra_field_info().
entity_extra_field_entity_view	Implements hook_entity_view().
entity_extra_field_form_alter	Implements hook_form_alter().
entity_extra_field_storage	Get entity extra field storage.
entity_extra_field_theme	Implements hook_theme().
entity_extra_field_theme_suggestions_entity_extra_field	Implements hook_theme_suggestions_HOOK().