message_example.module in Message 8

Holds hook implementation for the Message example module.

File

modules/message_example/message_example.module

<?php

/**
 * @file
 * Holds hook implementation for the Message example module.
 */
use Drupal\Core\Entity\ContentEntityBase;
use Drupal\node\Entity\Node;
use Drupal\comment\Entity\Comment;
use Drupal\user\Entity\User;
use Drupal\message\Entity\Message;

/**
 * Implements hook_node_insert().
 */
function message_example_node_insert(Node $node) {
  $message = Message::create([
    'template' => 'example_create_node',
    'uid' => $node
      ->get('uid'),
  ]);
  $message
    ->set('field_node_reference', $node);
  $message
    ->set('field_published', $node
    ->isPublished());
  $message
    ->save();
}

/**
 * Implements hook_comment_insert().
 */
function message_example_comment_insert(Comment $comment) {
  $message = Message::create([
    'template' => 'example_create_comment',
    'uid' => $comment
      ->getOwnerId(),
  ]);
  $message
    ->set('field_comment_reference', $comment);
  $message
    ->set('field_published', $comment
    ->isPublished());
  $message
    ->save();
}

/**
 * Implements hook_user_insert().
 */
function message_example_user_insert(User $account) {
  Message::create([
    'template' => 'example_user_register',
    'uid' => $account
      ->id(),
  ])
    ->save();
}

/**
 * Implements hook_node_update().
 */
function message_example_node_update(Node $node) {
  if (empty($node->original)) {
    return;
  }
  message_example_update_message_status($node);
}

/**
 * Implements hook_comment_update().
 */
function message_example_comment_update(Comment $comment) {
  if (empty($comment->original)) {
    return;
  }
  message_example_update_message_status($comment);
}

/**
 * Set message entity published field when it changes in the related entity.
 *
 * @param \Drupal\Core\Entity\ContentEntityBase $entity
 *   The entity object.
 */
function message_example_update_message_status(ContentEntityBase $entity) {
  if ($entity
    ->isPublished() == $entity->original
    ->isPublished()) {
    return;
  }
  $query = \Drupal::entityQuery('message');
  $field = 'field_' . $entity
    ->getEntityType()
    ->id() . '_reference';
  $query
    ->condition($field . '.target_id', $entity
    ->id());
  $results = $query
    ->execute();
  if (empty($results)) {
    return;
  }
  $messages = Message::loadMultiple($results);
  foreach ($messages as $message) {
    $message
      ->set('field_published', $entity
      ->isPublished());
    $message
      ->save();
  }
}

Functions

Name	Description
message_example_comment_insert	Implements hook_comment_insert().
message_example_comment_update	Implements hook_comment_update().
message_example_node_insert	Implements hook_node_insert().
message_example_node_update	Implements hook_node_update().
message_example_update_message_status	Set message entity published field when it changes in the related entity.
message_example_user_insert	Implements hook_user_insert().