unique_entity_title.module in Unique entity title 8

Contains unique_entity_title.module.

File

unique_entity_title.module

<?php

/**
 * @file
 * Contains unique_entity_title.module.
 */
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\node\NodeTypeInterface;

/**
 * Implements hook_help().
 */
function unique_entity_title_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {

    // Main module help for the unique_entity_title module.
    case 'help.page.unique_entity_title':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Check the uniqueness of entity titles within a bundle.') . '</p>';
      return $output;
    default:
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function unique_entity_title_form_node_type_form_alter(&$form, FormStateInterface $form_state) {
  $type = $form_state
    ->getFormObject()
    ->getEntity();
  $form['unique_entity_title_settings'] = [
    '#type' => 'details',
    '#title' => t('Unique entity title settings'),
    '#group' => 'additional_settings',
    '#open' => TRUE,
  ];
  $form['unique_entity_title_settings']['enable'] = [
    '#title' => t('Enable unique title for this bundle'),
    '#description' => t('Enabling the unique title will ensure that the title of the node will be different for each content.'),
    '#type' => 'checkbox',
    '#default_value' => $type
      ->getThirdPartySetting('unique_entity_title', 'enabled'),
  ];
  $form['#entity_builders'][] = 'unique_entity_title_form_node_type_form_builder';
}

/**
 * Implements form builder for node type form.
 */
function unique_entity_title_form_node_type_form_builder($entity_type, NodeTypeInterface $type, &$form, FormStateInterface $form_state) {
  $type
    ->setThirdPartySetting('unique_entity_title', 'enabled', $form_state
    ->getValue('enable'));
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function unique_entity_title_form_taxonomy_vocabulary_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $unique_entity_title = FALSE;
  $unique_entity_title = \Drupal::config('unique_entity_title.settings')
    ->get($form_state
    ->getFormObject()
    ->getEntity()
    ->id() . '_taxonomy_unique');
  $form['unique_entity_title_taxonomy_unique'] = [
    '#type' => 'checkbox',
    '#title' => t('Terms should be unique.'),
    '#default_value' => $unique_entity_title,
  ];
  $form['actions']['submit']['#submit'][] = 'unique_entity_title_taxonomy_form_vocabulary_submit';
}

/**
 * Submit handler to save the vocabulary unique entity title settings.
 */
function unique_entity_title_taxonomy_form_vocabulary_submit($form, FormStateInterface $form_state) {
  \Drupal::configFactory()
    ->getEditable('unique_entity_title.settings')
    ->set($form_state
    ->getFormObject()
    ->getEntity()
    ->id() . '_taxonomy_unique', $form_state
    ->getValue('unique_entity_title_taxonomy_unique'))
    ->save();
}

/**
 * Implements hook_entity_base_field_info_alter().
 */
function unique_entity_title_entity_base_field_info_alter(&$fields, EntityTypeInterface $entity_type) {
  if ($entity_type
    ->id() == 'node') {

    // Adding a Unique entity title constraint.
    $fields['title']
      ->addConstraint("UniqueEntityTitle");
  }
  if ($entity_type
    ->id() == 'taxonomy_term') {

    // Adding a Unique entity title constraint.
    $fields['name']
      ->addConstraint("UniqueEntityTitle");
  }
}

/**
 * Implements hook_entity_bundle_field_info_alter().
 */
function unique_entity_title_entity_bundle_field_info_alter(&$fields, EntityTypeInterface $entity_type, $bundle) {
  if ($entity_type
    ->id() == 'node') {

    // If the Title is changed, then the field is now Configurable which should
    // be altered through hook_entity_bundle_field_info_alter.
    // Ref: https://www.drupal.org/docs/8/api/entity-api/defining-and-using-content-entity-field-definitions
    if (isset($fields['title'])) {
      $fields['title']
        ->addConstraint("UniqueEntityTitle");
    }
  }
}

Functions

Name	Description
unique_entity_title_entity_base_field_info_alter	Implements hook_entity_base_field_info_alter().
unique_entity_title_entity_bundle_field_info_alter	Implements hook_entity_bundle_field_info_alter().
unique_entity_title_form_node_type_form_alter	Implements hook_form_FORM_ID_alter().
unique_entity_title_form_node_type_form_builder	Implements form builder for node type form.
unique_entity_title_form_taxonomy_vocabulary_form_alter	Implements hook_form_FORM_ID_alter().
unique_entity_title_help	Implements hook_help().
unique_entity_title_taxonomy_form_vocabulary_submit	Submit handler to save the vocabulary unique entity title settings.