translation_views.module in Translation Views 8

Provide hooks for translation_views module.

Basicaly this file is only used as workaround for these issues: https://www.drupal.org/project/drupal/issues/2954032 https://www.drupal.org/project/drupal/issues/2944278

File

translation_views.module

<?php

/**
 * @file
 * Provide hooks for translation_views module.
 *
 * Basicaly this file is only used as workaround for these issues:
 * https://www.drupal.org/project/drupal/issues/2954032
 * https://www.drupal.org/project/drupal/issues/2944278
 */
use Drupal\Core\Database\Query\AlterableInterface;
use Drupal\Core\Entity\ContentEntityFormInterface;
use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_module_implements_alter().
 */
function translation_views_module_implements_alter(&$implementations, $hook) {
  switch ($hook) {

    // Move our hook_form_alter() implementation to the end of the list.
    case 'form_alter':
      $group = $implementations['translation_views'];
      unset($implementations['translation_views']);
      $implementations['translation_views'] = $group;
      break;
  }
}

/**
 * Implements hook_form_alter().
 *
 * Add our submit for "source_langcode" submit.
 */
function translation_views_form_alter(&$form, FormStateInterface $form_state) {
  $form_object = $form_state
    ->getFormObject();
  if (!$form_object instanceof ContentEntityFormInterface) {
    return;
  }
  $entity = $form_object
    ->getEntity();
  $operations = $form_object
    ->getOperation();
  if ($entity instanceof ContentEntityInterface && $entity
    ->isTranslatable() && count($entity
    ->getTranslationLanguages()) > 1 && in_array($operations, [
    'edit',
    'add',
    'default',
  ], TRUE)) {
    $form['source_langcode']['submit']['#submit'][] = 'translation_views_content_form_fix_destination';
  }
}

/**
 * Submit callback for "source_langcode" button.
 */
function translation_views_content_form_fix_destination($form, FormStateInterface $form_state) {

  /* @var \Drupal\Core\Entity\ContentEntityFormInterface $form_object */

  /* @var \Drupal\Core\Entity\ContentEntityInterface $entity */

  /* @var \Symfony\Component\HttpFoundation\ParameterBag $query */
  $form_object = $form_state
    ->getFormObject();
  $entity = $form_object
    ->getEntity();
  $source = $form_state
    ->getValue([
    'source_langcode',
    'source',
  ]);
  $query = \Drupal::service('request_stack')
    ->getCurrentRequest()->query;
  $options = [];

  // Remove destination parameter from request,
  // to allow "Change" button works like desired.
  if ($query
    ->has('destination')) {
    $options['query']['destination'] = $query
      ->get('destination');
    $query
      ->remove('destination');
  }
  $entity_type_id = $entity
    ->getEntityTypeId();
  $form_state
    ->setRedirect("entity.{$entity_type_id}.content_translation_add", [
    $entity_type_id => $entity
      ->id(),
    'source' => $source,
    'target' => $form_object
      ->getFormLangcode($form_state),
  ], $options);
}

/**
 * Implements hook_query_TAG_alter().
 *
 * Add support to use views query substitutions in expressions
 * from hook_views_query_substitutions().
 * Expressions can be used in views fields (i.e addField()),
 * and views orderBy formula (i.e addOrderBy()).
 *
 * @todo Remove this workaround when will be solved in drupal core.
 */
function translation_views_query_views_alter(AlterableInterface $query) {
  $substitutions = $query
    ->getMetaData('views_substitutions');
  $expressions =& $query
    ->getExpressions();
  foreach ($expressions as $field_id => &$item) {
    foreach ($item['arguments'] as $replacement_key => $value) {
      if (!is_array($value)) {
        if (isset($substitutions[$value])) {
          $expressions[$field_id]['arguments'][$replacement_key] = $substitutions[$value];
        }
      }
      else {
        foreach ($value as $sub_key => $sub_value) {
          if (isset($substitutions[$sub_value])) {
            $expressions[$field_id]['arguments'][$replacement_key][$sub_key] = $substitutions[$sub_value];
          }
        }
      }
    }
  }
}

/**
 * Implements hook_help().
 *
 * @inheritdoc
 */
function translation_views_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.translation_views':
      $text = file_get_contents(dirname(__FILE__) . '/README.md');
      if (!\Drupal::moduleHandler()
        ->moduleExists('markdown')) {
        return '<pre>' . $text . '</pre>';
      }
      else {

        // Use the Markdown filter to render the README.
        $filter_manager = \Drupal::service('plugin.manager.filter');
        $settings = \Drupal::configFactory()
          ->get('markdown.settings')
          ->getRawData();
        $config = [
          'settings' => $settings,
        ];
        $filter = $filter_manager
          ->createInstance('markdown', $config);
        return $filter
          ->process($text, 'en');
      }
  }
  return NULL;
}

Functions

Name	Description
translation_views_content_form_fix_destination	Submit callback for "source_langcode" button.
translation_views_form_alter	Implements hook_form_alter().
translation_views_help	Implements hook_help().
translation_views_module_implements_alter	Implements hook_module_implements_alter().
translation_views_query_views_alter	Implements hook_query_TAG_alter().